台日東北大交大元件、材料、與數學跨領域國際研討會 -...

2014 AIMR Tohoku University-NCTU Joint Workshop

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AIMR Tohoku University-NCTU Joint Workshop on

Fusion of Mathematics, Nano-Materials, and Nano-Devices

台日東北大/交大元件、材料、與數學跨領域國際研討會

International Conference Hall, Tin Ka-Ping Photonics Building,

National Chiao Tung University, Hsinchu, Taiwan,

國立交通大學田家炳光電大樓國際演講廳

September 22-23 2014

http://ece-workshop.nctu.edu.tw


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The Map of National Chiao Tung University

Conference site: International Conference Hall, Tin Ka-Ping Photonics Building,


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Foreword

Dear Colleagues:

It is our great pleasure to welcome you to the “AIMR Tohoku University-NCTU Joint

Workshop on Fusion of Mathematics, Nano-Materials, and Nano-Devices”. The joint workshop

will be held September 22-23, 2014 at the National Chiao-Tung University in Hsinchu, Taiwan.

Hsinchu is a beautiful city which provides rich and vibrant Hakka culture. It has also been known

for the nursery of Taiwanese semiconductor industry.

The purpose of this workshop is essentially to promote interactions among researchers from

many disciplines across materials science, solid state device physics, and mathematics in both

universities. We hope to stimulate scientific idea exchanges and future collaboration among

participants, as well as provide a learning environment for the audience to catch up with the

fundamentals and latest development in these research areas. In our modest way, we also strive to

create a forum which encourages discussion and advances understanding in order to hasten the

fusion of nano-technologies, materials, devices, and mathematics for applications that benefit

humankind. This year, we are pleased to have many foreign and domestic distinguished scientists

as speakers, including Prof. Simon Sze and Prof. M. Kotani as our keynote speech presenters. We

sincerely thank all of you for your contributions as speakers or audience to this workshop.

On behalf of the organizing committee, we also like to thank many organizing institutes and

sponsoring organizations for financial support. In addition, without the diligent assistance from

the executive secretaries, symposium administrative assistants, and conference site assistants, this

workshop would not be made possible.

We hope you have a good time in Hsinchu and enjoy the conference.

Chun-Yen Chang, General Chair and Chair Professor

Yan-Hwa Wu Lee, Honorary General Chair and President

National Chiao Tung University


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Acknowledgment

主辦單位 Principle Organizing Institutes

國立交通大學 National Chiao Tung University

日本東北大學 Tohoku University

協辦單位 Co-Organizing Institutes

國立交通大學電機學院 NCTU College of Electrical and Computer Engineering

國立交通大學電機工程系 NCTU Dept. of Electrical and Computer Engineering

國立交通大學光電工程系 NCTU Dept. of Photonics

國立交通大學前瞻光電研究中心 NCTU X-Photonics Interdisciplinary Center

贊助單位 Sponsors

國立交通大學頂尖大學計畫辦公室 NCTU Aiming for the Top University Program

國立交通大學校友會 NCTU Alumni Association

安楊材料科技股份有限公司 Epion Technology Corporation Ltd.

漢民科技股份有限公司 Hermes-Epitek Corporation Ltd.


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AIMR Tohoku University-NCTU Joint Workshop on

Fusion of Mathematics, Nano-Materials, and Nano-Devices

台日東北大交大元件、材料、與數學跨領域國際研討會

International Conference Hall, Tin Ka-Ping Photonics Building,

National Chiao Tung University, Hsinchu, Taiwan, Sept. 22nd – 23rd, 2014

Organizing Committee

General Chair: Chun-Yen Chang (Chair Prof., NCTU)

Co-General Chair: Motoko Kotani (Director of AIMR, Tohoku University)

Honorary General Chair: Yan-Hwa Wu Lee (President, NCTU)

Steering Committee

Chair: Edward Yi Chang (NCTU)

Co-Chair: Seiji Samukawa (Tohoku University)

Secretary: Yiming Li, Peichen Yu, and Hsiao-Wen Zan (NCTU)

Akio Higo (Tohoku University)

Session Program Chairs

Mathematics Sessions:

Yasumasa Nishiura (Tohoku University)

Wen-Wei Lin (NCTU)

Material Sessions:

Tadafumi Adschiri (Tohoku University)

Edward Yi Chang (NCTU)

Device Sessions:

Seiji Samukawa (Tohoku University)

Horng-Chih Lin (NCTU)


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Program September 22nd

1. Registration 8:30~9:00 (Conference Staff) Conference Venue: International Conference Hall, Tin Ka-Ping Photonic Building, National Chiao Tung University

2. Opening Keynote Session 9:00~10:25 (Chair: Edward Yi Chang) 9:00~9:15 Opening Remarks

- General Chair Chun-Yen Chang (NCTU) - Co-General Chair Motoko Kotani (Tohoku University) - Vice President Han-Ping D. Shieh (NCTU)

9:15~9:45 “Challenge at AIMR, Tohoku University through Fusion of Mathematics, Materials and Devices,” Motoko Kotani (Tohoku University)

9:45~10:25 “The Floating-Gate Non-Volatile Semiconductor Memory - From Conception to the Digital Age,” Simon M. Sze (NCTU)

Coffee Break (20 min)

3. Session 1: Nano-Devices I 10:45~12:00 (Chair: Horng-Chih Lin)

10:45~11:10 “Novel Metal Oxidation Process by Using a Neutral Beam and its Application to Electronic Nano-Devices,” Takeo Ohno (Tohoku University)

11:10~11:35 “A General Curve on the Variation of Trigate FinFET Devices,” Steve Chung (NCTU) 11:35~12:00 “Complex Hydrides for Electrochemical Energy Storage,” Atsushi Unemoto (Tohoku

university)

Lunch Break (12:00~13:20)

4. Session 2: Mathematics I 13:20~15:00 (Chair: Yasumasa Nishiura)

13:20~13:45 “Motion and Shape of Drops in Active Soft Materials,” Natsuhiko Yoshinaga (Tohoku University)

13:45~14:10 “Dynamics on the Network of Hindmarsh-Rose Neurons,” Jong Juang (NCTU) 14:10~14:35 “Controlling of Particles with Fluctuations -Toward Applications of Nano-Devices-,”

Miki Kobayashi (Tohoku University) 14:35~15:00 “Weak Interaction of Solitary Pulses in Thin Liquid Films,” Te-Sheng Lin (NCTU)


5. Session 3: Mathematics II 15:20~17:00 (Chair: Wen-Wei Lin)

15:20~15:45 “Charge Transport Inside of Organic Crystals: The Crucial Role of Correlated Fluctuations,” Daniel Packwood (Tohoku University)

15:45~16:10 “A Reconstruction Algorithm for Free Form Lens Designs,” Chin-Tien Wu (NCTU) 16:10~16:35 “Statistical Mechanics Reconstruction of the Structure of Gold Nano-Cluster,” Chihiro

Nakajima (Tohoku University) 16:35~17:00 “A Random Time in Sampling One-Dimensional Distributions,” Guan-Yu Chen (NCTU)

6. Welcome Reception 18:00~20:00

Miramar Hotel Hsinchu

Music Performance: NCTU Music Institute


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September 23rd

7. Plenary Session 9:00~10:20 (Chair: Yiming Li) 9:00~9:40 “Future Japan & Taiwan.,” Chun-Yen Chang (NCTU) 9:40~10:20 “Neutral Beam Technology - Defect-Free Nanofabrication for Novel Nano-materials and

Nano-devices-,” Seiji Samukawa (Tohoku University)


8. Session 4: Nano-devices II 10:40~11:55 (Chair: Seiji Samukawa)

10:40~11:05 “Synthesis and Characterization of Nanostructured Electrocatalysts for Fuel Cell Applications,” Puwei Wu (NCTU)

11:05~11:30 “Biosensing and Bioimaging with Integrated Electrochemical Sensor Arrays.” Kumi Y. Inoue (Tohoku University)

11:30~11:55 “Growth of Zincblende GaN on C-plane Patterned Sapphire Substrate,” Yew Chung Sermon Wu (NCTU)

Lunch Break (12:00~13:20)

9. Session 5: Nano-materials I 13:20~14:35 (Chair: Yuan-Chieh Tseng)

13:20~13:45 “Heterogeneous Behavior in Dynamics at the Surface Layer of Glassy Polymer Films,” Nguyen Hung Kim (Tohoku University)

13:45~14:10 “Spintronic Materials Explored by Modern X-ray Absorption Spectroscopy,” Yuan-Chieh Tseng (NCTU)

14:10~14:35 “Particle Re-dispersion and Viscosity of Nanofluid in Shear Stress Field,” Nobuaki Aoki (Tohoku University)


10. Session 6: Nano-materials II 14:55~16:10 (Chair: Akio Higo)

14:55~15:20 “Development of Energy Harvesting Technology,” Yi Chiu (NCTU) 15:20~15:45 “Nanoparticle Synthesis Under Supercritical Condition -Toward Device / Hybrid

Materials Fabrications-,” Daisuke Hojo and Tadafumi Adschiri (Tohoku University) 15:45~16:10 “Self-Assembly Applications of Supramolecular Complexes and Nanocomposites,”

Hong Cheu Lin (NCTU)


11. Session 7: Panel Discussion 16:20~17:10 (Chairs: Hong Cheu Lin and Seiji Samukawa)

Yasumasa Nishiura (Tohoku University) and Wen-Wei Lin (NCTU) “Fusion of Nano-Devices and Mathematics”

12. Closing Remarks 17:10~17:20

General Chair Chun-Yen Chang (NCTU)

13. Banquet 18:00~20:00

Ambassador Hotel Hsinchu Music Performance: Muson Band


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Motoko KOTANI

Advanced Institute for Materials Research,

&Mathematics Institute, Graduate School of Science

Tohoku University

2-1-1 Katahira Aoba-ku, Sendai

980-8577 Japan

1. Education

The University of Tokyo B.S. 1983 Mathematics

Tokyo Metropolitan University M.S. 1985 Mathematics

Tokyo Metropolitan University D.Sci. 1990 Mathematics

2. Professional Experiences 1990-1997: Lecturer, Department of Mathematics. Faculty of Science, Toho University

1993-1994: Visiting Researcher, Max-Planck Society for the Advancement of Science

1997-1999: Associate Professor, Department of Mathematics. Faculty of Science, Toho University

1999-2003: Associate Professor, Mathematics Institute, Graduate School of Science, Tohoku University

2001.4-2001.11: Visiting Professor, Institute of Advanced Scientific Studies (IHES)

2004-present: Professor, Mathematics Institute, Graduate School of Science, Tohoku University

2008-2014.3: Distinguished Professor, Mathematics Institute, Graduate School of Science, Tohoku

University

2011-2012: Deputy Director, Professor, AIMR, Tohoku University

2012-present: Director, AIMR, Tohoku University

3. Scientific Interests:

Discrete Geometric Analysis

4. Major Awards and Honors

2005 Saruhashi Prize

5. Recent papers :(5 papers)

1. Negatively curved cubic carbon crystals with octahedral symmetry, M. Tagami, Y. Liang, H.

Naito, Y. Kawazoe, M. Kotani, Carbon, 2014

2. Geometric measures of finite carbon nanotube molecules: A proposal for length index and filling

indexes, T. Matsuno, H. Naito, S. Hitosugi, S. Sato, M. Kotani, H. Isobe. Pure and Appl.

Chem.,2014, 86, (4), 489-495

3. Geometric frustration of icosahedron in metallic glasses, A. Hirata, L. J. Kang, T. Fujita, B.

Klumov, K. Matsue, M. Kotani, A. R. Yavari, M. W. Chen, Science 341(6144),376-379

4. New Growth Mechanism of Cubic Rh Clusters Composed of 812 Atoms Found by the Method

of Euclidean Designs, Makoto Tagami1, Yunye Liang, Yoshiyuki Kawazoe and Motoko Kotani,

Materials Transactions, Vol. 53, No. 3 (2012) pp. 459 to 462


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Challenge at AIMR, Tohoku University

Through Fusion of Mathematics, Materials and Devices

Motoko KOTANI

Advanced Institute for Materials Research and

Mathematics Institute, Graduate School of Science

Tohoku University

Phone: +81222175130, Fax: +81222175129

e-mail: [email protected]

URL: http://www.math.tohoku.ac.jp/english/people/kotani-e.html

http://www.mathmate.tohoku.ac.jp/english/index.html

Abstract

AIMR was established as one of the WPI research centers under the World Premier International

Research Center Initiative Program by the government. The aim of the program is to build international

research centers within Japan which are visible in the world. AIMR, as a WPI research center, has made

much effort to pursue four missions: top level science, globalization, system reform and challenges to a new

research area by interdisciplinary team, and attracted excellent researchers from all around the world.

From its establishment in 2007, AIMR’s ultimate goal is to integrate materials science with physics,

chemistry and engineerining to create a new materials science which is apropriate for the 21st centery and

gathers outstanding researchers from all around the world to achieve the goal. In FY 2012, AIMR proposed

a clrea vision and research strategy, “mathematics-materials science collaboration” to build the basis for

materials science which can predict functions and properties, and enabling the smart design of materials.

We set three target projects: nonequilibrium materials based on mathematical dynamical systems,

topological functional materials, and multi-scale hierarchical materials based on discrete geometric

analysis to advance the mathematics-materials science collaboration.

In the presentation, I would like to introduce some of emerging results from the target projects.

mailto:[email protected]

http://www.math.tohoku.ac.jp/english/people/kotani-e.html

http://www.mathmate.tohoku.ac.jp/english/index.html


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Biodata of Dr. Simon M. Sze

Dr. Simon M. Sze received his B. S. degree from the

National Taiwan University, M. S. from the University of

Washington, and Ph. D. from Stanford University, all in

Electrical Engineering.

Dr. Sze was with Bell Telephone Laboratories from 1963 to

1989 as a member of the Technical Staff. He joined the National Chiao Tung

University (NCTU) from 1990 to 2006 as a Distinguished Professor. At present,

he is an Honorary Chair Professor at NCTU. Dr. Sze has served as Visiting

Professor to many academic institutions including the University of Cambridge,

Delft University, the University of Hong Kong, Stanford University, Swiss Federal

Institute of Technology, and Tokyo Institute of Technology.

He has made fundamental and pioneering contributions to semiconductor

devices, especially the metal-semiconductor contacts, microwave devices, and

submicron MOSFET technology. Of particular importance is his discovery with

Dr. D. Kahng of the non-volatile semiconductor memory (NVSM) effect which has

subsequently given rise to a large family of memory devices including the Flash

memory and EEPROM. NVSM has enabled the development of all modern

electronic systems such as the digital cellular phone, tablet computer, personal

digital assistant, smart IC card, digital camera, digital television, portable DVD,

MP3 music player, pacemaker, implantable defibrillator, global positioning system

(GPS), and anti-lock braking system (ABS).

Dr. Sze has authored or coauthored over three hundred technical papers. He

has written and edited 16 books. His book “ Physics of Semiconductor Devices ”

( Wiley, 1969; 2nd Ed, 1981; 3rd

Ed, 2007 ) is one of the most cited works in

contemporary engineering and applied science publications ( over 24,000 citations

according to ISI Press ). Dr. Sze has received the IEEE J. J. Ebers Award, the

Sun Yet-sen Award, the National Endowed Chair Professor Award, and the

National Science and Technology Prize. He is a Life Fellow of IEEE, an

Academician of the Academia Sinica, a foreign member of the Chinese Academy

of Engineering, and a member of the US National Academy of Engineering.


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The Floating-Gate Non-Volatile Semiconductor Memory －

From Conception to the Digital Age

S. M. Sze

National Chiao Tung University, Hsinchu, Taiwan, ROC

Abstract

In the past 47 years (from 1967 to 2014), the non-volatile semiconductor memory (NVSM) has emerged

from a floating-gate concept to the prime technology driver of the largest industry in the world – the

electronics industry. In this paper, we briefly review the historical development of NVSM and project its

future trends to the year 2020. In addition, we consider NVSM’s wide-range of applications from the digital

cellular phone to tablet computer to digital television. As the device dimension is scaled down to the

deca-nanometer regime, we expect that many innovations will be made to meet the scaling challenges, and

NVSM-inspired technology will continue to enrich and improve our lives for decades to come.


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Takeo OHNO

Affiliation:WPI-AIMR, Tohoku University

PRESTO, JST

Address: 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JAPAN

1. Education

2005, Ph.D. in Materials Science, Tohoku University, Japan

2. Professional Experiences

2008-2009, Postdoctoral Researcher, UCLA, USA

2007-2012, NIMS Postdoctoral Researcher, NIMS, Japan

2006-2007, Postdoctoral Researcher, Tohoku University, Japan

2005-2006, Postdoctoral Research Fellow (PD), JSPS, Japan

2004-2005, Doctoral Research Fellow (DC2) JSPS, Japan


Nanoionic memory, Neuromorphic system, Semiconductor growth and device


2005, The 11th Research Encouraging Prize, Aoba Foundation for The Promotion of Engineering

5. Recent papers: (5 papers)

A. Nayak et al., Adv. Funct. Mater. 2012, 22, 3606.

T. Ohno et al., Appl. Phys. Lett. 2011, 99, 203108.

T. Ohno et al., Nature Mater. 2011, 10, 591.


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Novel Metal Oxidation Process by using a Neutral Beam

and its Application to Electronic Nano-devices

Takeo OHNO and Seiji SAMUKAWA

WPI-AIMR, Tohoku University

PRESTO, JST

2-1-1 Katahira, Aoba-ku, Sendai 980-8577, JAPAN

Phone: +81-22-217-5316


Abstract

Fabrication of electronic devices such as memory and transistor is one of the most important factor for

information technology. Among of memories, nanoionic memory has been proposed as a candidate for

future generation non-volatile memory. Oxide-based electrochemical metallization memory as well as

valence change memory requires a high quality oxide film as a solid electrolyte with nanometer thickness to

improve device performance. Germanium transistor is also one of the most promising transistor devices due

to higher carrier mobilities for both electrons and holes than those in silicon. In a Ge MOSFET structure,

high quality and very thin high-k oxide film is needed to obtain good gate characteristics. To form an

ultrathin oxide film, we have proposed novel metal oxidation process named “Neutral Beam Oxidation

(NBO)” [1–3]. This technique has advantages for thin film oxidation such as elimination of UV photons,

prevention of charge build-up and low-temperature process. In this talk, we report the formation of

nanometer-thick metallic oxide film of tantalum and alminum by using NBO process and also demonstrate

resistive switching in the tantalum oxide film and MOS capacitor operation in the AlOx/GeOx/Ge gate

structure.

[1] S. Samukawa et al., J. Vac. Sci. Technol. A 20, 1566 (2002).

[2] M. Yonemoto, S. Samukawa et al., Jpn. J. Appl. Phys. 48, 04C007 (2009).

[3] A. Wada, S. Samukawa et al., Appl. Phys. Lett. 98, 203111 (2011).


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STEVE S. CHUNG received his Ph.D. degree from the University of

Illinois at Urbana-Champaign, in Electrical Engineering in 1985. His

Ph.D. thesis advisor is the world-famous scholar and CMOS

Co-Inventor, Prof. C. T. Sah.

Currently, he is NCTU and UMC Chair Professor at the National

Chiao Tung University (NCTU). After joining NCTU in 1987, he

has been the first Department Head of EECS Honors Program from 2004-2005, the Dean

of International Affairs Office, Executive Director of school level research center, from

2007-2008. He was a Research Visiting Scholar with Stanford University in 2001, visiting

professor to University of California-Merced in 2009-2010, and taught graduate courses

at Stanford and UC-Merced in the Fall of 2009. He was also an honorary professor of the

Institute of Microelectronics, CAS. He has been the consultant to the two world largest IC

foundries, TSMC and UMC. His recent current research areas include- nanoscale CMOS

devices and technology; low voltage/power design of Si/III-V devices, nonvolatile

memory technology and reliability; and reliability physics/interface characterization. By

the end of 2014, he has more than 25 times oral presentations in the IEEE flagship

conferences, IEDM and VLSI. In particular, he was the first (from Taiwan) to present the

paper at VLSI Technology symposium in 1995.

He is an IEEE Fellow, the current IEEE EDS BoG(Board of Governor) member, IEEE

Distinguished Lecturer, EDS Regions/Chapters Chair, EDS Taipei chapter chair, Editor

of J-EDS, and with past involvement as EDS AdCom member (2004-2009), EDS

Regions/Chapters Vice-Chair, and Editor of EDL(2002-2008). He has served on various

important conference committees, e.g., VLSI Technology, IEDM, IRPS, IPFA, ICMTS,

SNW, VLSI-TSA, SSDM etc. He was awarded 3 times outstanding Research Award,

distinguished PI, and distinguished NSC Research Fellow, from the National Science

Council; Distinguished EE Professor and Engineering Professor of the Engineering

Societies in Taiwan. More recently, he received 2013 Pan Wen Yuan award in

recognizing his outstanding achievements in the semiconductor research.


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A General Curve on the Variation of Trigate FinFET Devices

Steve S. Chung

NCTU Chair Professor/UMC Chair Professor/IEEE Fellow

Department of Electronics Engineering, National Chiao Tung University, Taiwan

TEL: +886-3-5731830 Fax: +886-3-5734608 email: [email protected]

Abstract

Moore’s Law has driven CMOS devices scaling for several decades. The random phenomenon becomes

increasingly important with the further scaling of CMOS technology. The random dopant fluctuation (RDF),

is one of the most important issues for sub-50nm CMOS technologies in terms of the device architecture

and manufacturing with the drastic scaling of CMOS technology. In the past, variations associated with

implant and RTA anneal, the strain effect, and gate material, have received quite a lot of attentions. To solve

RDF, carbon co-implant, FDSOI or FinFET, and high-k gate dielectric have been proposed to reduce the

variability effectively. However, the understanding on the RDF has almost been understood through the

simulations. Until more recently, the understanding of the RDF became possible by the experimental

approach [1-2].

In this talk, the theoretical basis from an experimental dopant profiling technique will first be introduced

to analyze the RDF effect. The dopant profiling technique has been further elaborated on trigate MOSFETs

to study the process induced effects such as boron clustering, sidewall roughness effect, fin-height induced

variation etc. Then, a unique gate oxide variation theory [3] will be introduced to understand the 3D gate

structure and its impact on the FinFET device. A general curve on the understanding of the above effects

will all be presented.

[1] E. R. Hsieh, S. S. Chung et al., Symp. on VLSI Technology, 152(2011).

[2] H. M. Tsai, E. R. Hsieh, S. S. Chung et al., Symp. on VLSI Technology, 189(2012).

[3] E. R. Hsieh, S. T. Lin, S. S. Chung et al., IEDM, 770(2013).



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Dr. Atsushi UNEMOTO

Affiliation:WPI-Advanced Institute for Materials Research

(WPI-AIMR)

Address: 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

1. Education

2007–2009 Ph.D. in Environmental Studies, Graduate School of Environmental Studies, Tohoku

University

2005–2007 M.S. in Engineering, Graduate School of Engineering, Tohoku University

2001–2005 B.S. in Engineering, School of Engineering, Tohoku University


2013- Lecturer, WPI-Advanced Institute of Materials Research (WPI-AIMR), Tohoku University

2010 Assistant Professor, Institute of Multidisciplianry Research for Advanced Materials, Tohoku

University

2009 Assistant Professor, Graduate School of Engineering, Tohoku University


Solid-state ionics, solid-state electrochemistry, rechargeable battery, hydrides


2013.5 Best Poster Award, 125th Conference of the Institute for Materials Research, Tohoku University

2008–2009 Japan Society for the Promotion of Science (JSPS) Fellowship

2007.5 Excellent Scientific Achievement Award, 5th International Conference on Hydrogen Economy

and Hydrogen Treatment of Materials, Donetsk, Ukraine

5. Recent papers :

Atsushi Unemoto, Syun Yasaku, Genki Nogami, Masaru Tazawa, Mitsugu Taniguchi, Motoaki Matsuo,

Tamio Ikeshoji, Shin-ichi Orimo, “Development of bulk-type all-solid-state lithium-sulfur battery using

LiBH4 electrolyte”, Appl. Phys. Lett. (In press).

Atsushi Unemoto, Motoaki Matsuo, Shin-ichi Orimo, “Complex hydrides for electrochemical energy

storage (feature article)”, Adv. Funct. Mater. 24 (2014) 2267-2279; ChemInform 24 (2014) 29.

Terrence J. Udovic, Motoaki Matsuo, Atsushi Unemoto, Nina Verdal, Vitalie Stavila, Alexander V.

Skripov, John J. Rush, Hitoshi Takamura, Shin-ichi Orimo, “Sodium superionic conduction in Na2B12H12”,

Chem. Comm. 50 (2014) 3750-3752.

Atsushi Unemoto, Yoshiyuki Gambe, Daiki Komatsu, Itaru Honma, “Development of high capacity

all-solid-state lithium battery using quasi-solid-state electrolyte containing tetraglyme–Li-TFSA

equimolar complexes”, Solid State Ionics 262 (2014) 765-768.

Atsushi Unemoto, Hideyuki Ogawa, Yoshiyuki gambe, Itaru Honma, “Development of lithium-sulfur

battery using room temperature ionic liquid-based quasi-solid-state electrolytes”, Electrochim. Acta 125

(2014) 386-394.


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Complex Hydrides for Electrochemical Energy Storage

Atsushi UNEMOTO,1 Motoaki MATSUO,

2 Tamio IKESHOJI,

1 Shin-ichi ORIMO

1,2

1WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University

2Institute for Materials Research, Tohoku University

2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan

Phone: +81-22-215-2094, Fax: +81-22-215-2091


URL: www.hydrogen.imr.tohoku.ac.jp/en/index.html

Abstract

In the field of battery research, enhancement of the energy density of the rechargeable battery is one of

the important technological challenges that need to be addressed for large-scale applications including

automotive applications and stationary uses for load leveling. Therefore, all-solid-state lithium rechargeable

battery is considered as one of the next generation battery. This is because the solid-state electrolytes accept a

broader choice of the active materials for the battery assembly compared to the conventional liquid

electrolyte type battery. Hence, we can choose the electrodes that enhance the energy density for the battery

assemblies. With this background, various solid-state electrolytes including oxides and sulfides have been

developed so far, the materials that possess high lithium ionic conductivity (> 10–3 S cm–1), and

electrochemical stability in the voltage range for battery operation are limited to a few cases [1]. Therefore,

development of a new electrolyte family is highly desired.

In recent years, our research group has revealed that LiBH4 exhibits high lithium ionic conductivity

accompanied by the structure transition from orthorhombic to hexagonal systems at elevated temperatures

and around 390 K [2]. Above 390 K, LiBH4 exhibits the fast lithium ionic conductivity that exceeds 2 × 10–3

S cm–1, and high electrochemical stabilities [3]. Therefore, the complex hydrides are expected to be a new

solid-state electrolyte family for rechargeable batteries [4]. In this study, we incorporated the LiBH4

electrolyte in the bulk-type all-solid-state lithium rechargeable battery. TiS2 and Li were used as a positive

electrode and a negative electrode, respectively, and the discharge–charge performance was evaluated at 393

K and 0.1 C. The redox couple, TiS2/Li, is estimated to have a theoretical capacity of 239 mAh g–1

accompanied by the composition variation, LixTiS2 (0 ≤ x ≤ 1) [5]. Our battery exhibited a high initial

discharge capacity of 200 mAh g–1, corresponding to 80 % of a TiS2 utilization ratio. Discharge–charge could

be repeated stably at least for 50 times with nearly 100 % coulombic efficiency, and without capacity fading.

The result implies that the complex hydride electrolytes are promising candidate materials for the bulk-type

all-solid-state rechargeable battery assembly.

Valuable collaboration and communication with G. Nogami, M. Tazawa, and Dr. M. Taniguchi of

Mitsubishi Gas Chemicals Co., Ltd. are highly appreciated. This work was supported by the Target Project 4

of WPI-AIMR, Tohoku University, the Integrated Materials Research Center for the Low-Carbon Society

(LC-IMR), Tohoku University, JSPS KAKENHI Grant No. 25220911, and the Advanced Low Carbon

Technology Research and Development Program (ALCA) from the Japan Science and Technology Agency

(JST).

[1] N. Kamaya et al., Nat. Mater. 10 (2011) 682. [2] M. Matsuo et al., Appl. Phys. Lett. 91 (2007) 224103. [3]

M. Matsuo, S. Orimo, Adv. Energ. Mater. 1 (2011) 161. [4] A. Unemoto, M. Matsuo, S. Orimo, Adv. Funct.

Mater. 24 (2014) 2267; ChemInform 24 (2014) 29. [5] M. S. Whittingham, Science 192 (1976) 1126.


14

Natsuhiko YOSHINAGA

Affiliation:WPI Advanced Institute for Materials Research

(WPI-AIMR), Tohoku University

Address: Katahira 2-1-1, Aoba-Ku, Sendai 9808577, Japan

1. Education

2002 B.S. in Physicss, Kyoto University

2004 M.S. in Physics, Kyoto University

2007 Ph.D. in Physics, Kyoto University


2004 – 2007 JSPS Research Frllow (DC1) in Graduate School of Science, Kyoto University

2005 – 2006 Visiting fellow in Département de recherche fondamentale sur la matière condensée

(DRFMC), CEA-Grenoble , France

2007 – 2010 JSPS Research Fellow (PD) in Graduate School of Science, The University of

Tokyo

2007 – 2008 Visiting fellow in PhysicoChimie Curie UMR 168, Institut Curie, Section recherche,

France

2010 – 2011 Research Fellow in Fukui Institute for Fundamental Chemistry, Kyoto University

2011 – present Assistant Professor in Mathematics Unit, WPI-AIMR, Tohoku University


Theory of Active Soft Materials, Nonlinear and Nonequilibrium Dynamics



Natsuhiko Yoshinaga, "Spontaneous motion and deformation of a self-propelled droplets", Physical

Review E, 89, 012913 (2014).

Ken H. Nagai, Fumi Takabatake, Yutaka Sumino, Hiroyuki Kitahata, Masatoshi Ichikawa, and

Natsuhiko Yoshinaga, "Rotational motion of a droplet induced by interfacial tension", Physical

Review E, 87, 013009 (2013).

Natsuhiko Yoshinaga, Ken H. Nagai, Yutaka Sumino, and Hiroyuki Kitahata, "Drift instability in the

motion of a fluid droplet with a chemically reactive surface driven by Marangoni flow", Physical

Review E, 86, 016108 (2012).

Natsuhiko Yoshinaga and Philippe Marcq, "Contraction of cross-linked actomyosin bundles",

Physical Biology, 9, 046004 (2012).

Shunsuke Yabunaka, Takao Ohta, and Natsuhiko Yoshinaga, "Self-propelled motion of a fluid droplet

under chemical reaction", Journal of Chemical Physics, 136, 074904 (2012).


15

Motion and Shape of Drops in Active Soft Materials

Natsuhiko YOSHINAGA

WPI Advanced Institute for Materials Research (WPI-AIMR), Tohoku University

Katahira 2-1-1, Aoba-Ku, Sendai 9808577, Japan

Phone: +81-22-217-6334, Fax: +81-22-217- 6335


URL: http://www.wpi-aimr.tohoku.ac.jp/~yoshinaga/

Abstract

Spontaneous motion has attracted lots of attention in the last decades in nonlinear and nonequilibrium

physics partially for its potential application to biological problems such as cell motility. Recently, several

model experiments showing spontaneous motion have been proposed in order to elucidate underlying

mechanism of the motion. The systems in these works consist of relatively simple ingredients, for instance,

oil droplets in water, but nevertheless the results show rich motion and deformation of the droplet.

Importantly, the system breaks symmetry and chooses one direction of motion.

In this presentation, we theoretically show a set of nonlinear equations exhibiting a transition between

stationary and motile states starting from the nonlinear advection-reaction-diffusion equation driven away

from an equilibrium state due to chemical reactions. A particular focus is on how hydrodynamic flow

destabilizes an isotropic distribution of a concentration of chemicals. We also discuss a shape of the droplet.

Due to self-propulsive motion and flow around the droplet, a spherical shape becomes unstable and it

elongates perpendicular to the direction of motion. This fact implies that the self-propulsion driven by

chemical reaction is characterized as a pusher in terms of a flow field.

Fig. Motion and deformation of pusher (a) and puller (b). Under the given distribution of the surface tension, the flow field, the direction of the force dipole, and the force acting on the surface of a droplet are drawn depending on the sign of the second mode of the surface tension.

(a) (b)


16

Jong JUANG

Affiliation (Times New Roman, 10pt)

Address (Times New Roman, 10pt)

1. Education

Texas Tech University, 1987


Department of Applied Math., National Chiao Tung University

Professor (1995/08~)

Chairman (1997/08~1999/07)

Associate Dean of College of Science (2006/08~2007/08)

Distinguished Professor (2010/08~)


Differential Equations and Dynamical Systems

Major Awards and Honors


J. Juang & Y.–H. Liang, Synchronous Chaos in Coupled Map Lattices with General Connectivity

Topology, SIAM Appl. Dynan. Syst., 7 (2008), no. 3, 755--765.

Y.-C. Chang and J. Juang, Stable Synchrong In Globally-Coupled Integrate-And-Fire Oscillators,

SIAM Appl. Dynam. Systems. Vol. 7, issue 4, PP. 1445-1476.

C. Juang, C.-L. Li, Y.-H. Liang and J. Juang, Wavelet Transform Method for Coupled Map Lattices,

IEEE Transactions on CAS I, Vol. 56, No. 4, PP. 840-845, April (2009).

F.-J. Jhou, J. Juang and Y.-H. Liang, Multi-state and multi-state synchronization of Hindmarsh-Rose

neurons with chemical and electrical synapses, IEEE Transactions on CAS-I: Regular paper, Vol. 59,

No.6, 1355-1349, 2012.

J. Juang and Y-H Liang, Cluster synchrongation in Networks of Neurons with Chemical Synapses,

Chaos 24, 013110 (2014)

http://www.math.nctu.edu.tw/faculty/faculty_content.php?S_ID=19&SC_ID=1


17

Dynamics on the Network of Hindmarsh-Rose Neurons

Jong Juang

Department of Applied Mathematics, National Chiao-Tung University

1001 University Road, Hsinchu 300, Taiwan

Phone: +886-3-5712121 Ext. 31208

e-mail:[email protected]

Abstract

We will talk about the synchronized dynamics on the coupled Hindmarish-Rose nearons as well as the

dynamics of its synchronous equations.


18

Miki U. KOBAYASHI

Affiliation:Tohoku University, WPI-AIMR

Address: 2-1-1 Katahira Aoba-ku Sendai, 980-8577, Japan

Education

2008 Ph.D. (Informatics) Graduate School of Informatics, Kyoto University

Professional Experiences

2012- Tohoku University WPI-AIMR

Scientific Interests:

Control theory for materials

Nonlinear dynamical systems

Major Awards and Honors

Recent papers :(5 papers)

(1)“Manifold structures of unstable periodic orbits and the appearance of periodic windows in chaotic

systems”, M.U.Kobayashi and Y.Saiki, PRE 89, 022904 (2014).

(2)“Dispersion of nanoparticles with control theory”, M.U.Kobayashi, Proc. of KJCCS (2013).

(3)”Temporal intermittency in a shell model turbulence in terms of covariant Lyapunov vectors”,

M.U.Kobayashi and M.Yamada, J. Phys. A: Math. Theor. , 46, 254008 (2013).

(4)“Delayed feedback control method for dynamical systems with chaotic saddles”, M.U.Kobayashi

and K.Aihara, AIP Conf. Proc. 1468, 207 (2012).

(5)”Covariant Lyapunov analysis of chaotic Kolmogorov flows”, M. Inubushi, M.U.Kobayashi, S-I.

Takehiro, and M.Yamada, PRE, 85, 016331 (2012).


19

Controlling of particles with fluctuations

- Toward applications of nano-devices -

Miki U. KOBAYASHI

Tohoku University, WPI-AIMR

2-1-1 Katahira Aoba-ku Sendai, 980-8577, Japan

Phone: +81-22-217-6149


Abstract

We construct control theory for dynamics of particles with fluctuations. This theory is based on the time

delayed feedback control method which is a kind of chaos control. One of the aims of chaos control is to

control a chaotic irregular motion to be a regular one. On the other hand, our aim is to suppress fluctuations

of stochastic motion. We investigate theoretically an effect of the control theory on random walk and find

that the diffusion coefficient of the controlled system is strongly suppressed with increasing time delay in the

control input.

Furthermore, we make a mathematical model for a nano-device which is represented mathematically

based on dynamics of electron with fluctuations due to the tunnel effect. According to the model, the output

voltage of the device fluctuates stochastically. In order to improve the performance of the nano-device, the

fluctuations should be suppressed. We apply numerically the control theory to the mathematical model on

the nano-device. As the results, the fluctuations are suppressed by control inputs based on the control theory,

implying that the control theory is useful to improve the performance of the nano-device practically.


20

TE-SHENG LIN

Affiliation:Department of Applied Mathematics, National Chiao

Tung University

Address: 1001 Ta Hseuh Road, Hsinchu 300, Taiwan

1. Education

Department of Mathematical Sciences, New Jersey Institute of Technology, USA, 05/2012


Research Associate, Department of Mathematical Sciences, Loughborough University, UK, 12/2012

– 07/2014

Marie Curie Experienced Researcher, Department of Mathematical Sciences, Loughborough

University, UK, 06/2012 -12/2012


Mathematical modeling ; Scientific computation ; Fluid mechanics.



1. T.-S. Lin, L. J. Cummings, A. J. Archer, L. Kondic and U. Thiele, Note on the hydrodynamic

description of thin nematic films: strong anchoring model, Phys. Fluids, 25, 082102 (2013).

2. T.-S. Lin, L. Kondic, U. Thiele and L. J. Cummings, Modelling spreading dynamics of nematic

liquid crystals in three spatial dimensions, J. Fluid Mech., 729, 214 (2013).

3. T.-S. Lin, L. Kondic and A. Filippov, Thin films flowing down inverted substrates: three

dimensional flow, Phys. Fluids, 24, 022105 (2012).

4. L. J. Cummings, T.-S. Lin and L. Kondic, Modelling and simulations of the spreading and

destabilization of nematic droplets, Phys. Fluids, 23, 043102 (2011).

5. T.-S. Lin and L. Kondic, Thin films flowing down inverted substrates: two dimensional flow,

Phys. Fluids, 22, 052105 (2010).


21

Weak Interaction of Solitary Pulses in Thin Liquid Films

TE-SHENG LIN

Department of Applied Mathematics, NCTU

1001 Ta Hsueh Road, Hsinchu 300, Taiwan

Phone: +886-3-5712121 ext:56422, Fax: +886-3-5724679

e-mail: [email protected] URL:http://www.math.nctu.edu.tw/~tslin

Abstract

We analyze pulse interaction in active-dissipative systems that arise in the study of falling liquid films in

the presence of various external effects, e.g. an applied electric field or turbulent gas flow. Such effects result

in additional non-local terms in the form of pseudo-differential operators. We analyze both weakly nonlinear

and fully nonlinear reduced model equations. We develop an accurate weak-interaction theory for the pulses

that allows us to analyze the attraction and repulsion of pulses and the existence of bound states. We compare

the theoretical predictions with numerical results for reduced model equations and Stokes flow. It is found

that non-locality strongly influences pulse interactions and results in several features that are not present in

local equations.


22

Daniel PACKWOOD

Affiliation:WPI-Advanced Institute for Materials Research,

Tohoku University

Address: 2-1-1 Katahira, Aoba, Sendai, 980-8577, Japan

1. Education

Bachelor of Science (Honours 1) (2008, University of Canterbury)

Doctor of Philosophy (2010, University of Canterbury)


Postdoctoral Fellow, Department of Chemistry, Graduate School of Science, Kyoto University (2010

– 2012)

Assistant Professor, WPI-Advanced Institute for Materials Research, Tohoku University (2012 –

present)


Stochastic modelling and probability applied to chemical physics.


New Zealand Tertiary Education Commission Top Achiever Doctoral Scholarship (2008)

Japan Society for the Promotion of Science Postdoctoral Fellowship (2010)


D. M. Packwood, T. Jin, T. Fijita, M. W. Chen, and N. Asao. Mixing Time of Molecules Inside of

Nanoporous Gold. SIAM Journal on Applied Mathematics In press (2014).

D. M. Packwood, K. T. Reaves, F. L. Federici, H. G. Katzgraber, and W. Teizer. 2D Molecular

Magnets with Weak Topological Invariant Magnetic Moments : Mathematical Prediction of Targets

for Chemical Synthesis. Proceedings of the Royal Society A 469, 2013, 20130373

D. M. Packwood, S. Shiraki, and T. Hitosugi. Effects of Collisions on the Stoichiometry of Thin

Films Prepared by Pulsed Laser Deposition. Physical Review Letters 111, 2013, 036101.

D. M. Packwood and Y. Tanimura. Dephasing by a Continuous-Time Random Walk Process.

Physical Review E 86, 2012, 11130.

D. M. Packwood and L. F. Phillips. A Stochastic, Local Mode Study of Neon-Liquid Surface

Collision Dynamics. Physical Chemistry Chemial Physics 13, 2011, 762.


23

Charge Transport Inside of Organic Crystals:

The Crucial Role of Correlated Fluctuations

Daniel M. PACKWOOD

WPI-Advanced Institute for Materials Research, Tohoku University

2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan

Phone: +81-22-217-6149, Fax: +81-22-217-6149

e-mail: [email protected] URL: http://packwood.web.fc2.com

Abstract

A major goal in organic semiconductor research is to fabricate crystals of organic molecules with high

charge carrier mobilities. However, progress in this direction has been difficult due to a lack of understanding

of the charge transport mechanism in these materials. Electron and hole mobilities in organic crystals are

known to decrease with increasing temperature, which is suggestive of delocalised band-type transport seen

in metallic conductors. However, other experiments have shown that the charge carriers are actually localised

over several molecules. Several first-principles calculations have shown that these phenomena are related to

the random thermal motions of molecules in the crystal [1], however these calculations have not explained

how this dynamical disorder gives rise to these unique electrical properties.

We have been studying the dynamics of charges over a network of molecules via a stochastic

tight-binding model. In this model, the dynamical disorder in a real organic crystal is modelled by Gaussian

stochastic modulation of the electronic coupling between molecules. Simulation of this model gives a

mobility-temperature dependence that is in qualitative agreement with experimental data. In order to

understand the mechanism of charge transport in this model, we performed a novel mathematical analysis

based on time-dependent perturbation theory. We find that the charge transport dynamics in this model can be

regarded as a sum of ‘highly correlated paths’, i.e., virtual processes in which the charge is transported over

regions where the stochastic modulations are highly correlated. As temperature increases, the correlation

function for these stochastic fluctuations decays more rapidly, and this phenomenon turns out to be closely

related to the decay of mobility with increasing temperature. On the other hand, such ‘highly correlated paths’

are tightly localised in space, because highly correlated fluctuations cannot persist over a long distance. This

analysis therefore suggests the possible crucial role of correlated thermal fluctuation in the charge transport

regime of real organic crystals [2].

[1] A. Troisi and G. Orlandi. J. Phys. Chem. A. 110, 4065 (2006) ; H. Tamura et al. Phys. Rev. B. 86,

035208, 2012.

[2] D. M. Packwood, in preparation (2014).


24

Chin-Tien Wu

1. Education

PhD. Applied Mathematics and Scientific Computation,

Univ. of Maryland, College Park, MD, USA


Associated professor, National Chiao-Tung University, Taiwan, 2012~present

Assistant professor, National Chiao-Tung University, Taiwan, 2007~2012

Assistant professor, National Taiwan Ocean university, Taiwan, 2006~2007

Visiting professor, National Chiao-Tung University, Taiwan, 2005~2006

Post doctor : National center of theoretical science, Taiwan, 2004~2005


Numerical linear algebra, finite element method, computational mechanics, image processing


5. Recent papers :

1. Yu-Lin Tsai, Ming-Chen Chiang, Ray Chang, Chung-Hao Tien, Chin-Tien Wu, A new

approach to construct freeform surface by numerically differential formulation. Optical

Engineering, 2013.

2. Tsung-Ming Hwang, Wen-Wei Lin and Chin-Tien Wu, Structure-Preserving Arnoldi-Type

Algorithm for Solving Eigenvalue Problems in Leaky Surface Wave Propagation , Applied

Mathematics and Computation , 2013.

3. Tsung-Ming Huang; Tiexiang Li; Wen-Wei Lin, Chin-Tien Wu , Numerical Studies on

Structure-Preserving Algorithms for Surface Acoustic Wave Simulations. Journal of

computational and applied mathematics, 2012.

4. Chin-Tien Wu, Ming-Chih Lai and Zhilin Li, Adaptive mesh refinement for the elliptic

interface problems using immersed finite element method. Journal of international numerical

analysis and modeling, 2011.

5. Z. T. Huang, H. C. Hsu, C. L. Chang, C. T. Wu and T. F. Jiang, Momentum-time flux

conservation method for one-dimensional wave equations. Computer Physics Communications,

2010.

Affiliation: Applied Mathematics department ,

National Chiao-Tung University

Address : 1001 University Road, Hsinchu, Taiwan 300, ROC


25

A Reconstruction Algorithm for Free Form Lens Designs

Chin-Tien Wu

Department of Applied Mathematics, Chiao-Tung University

1001 University Road, Hsinchu, Taiwan 300, ROC

Phone: +886-3-5712121, Fax: +886-3-5722088

e-mail:[email protected]

Abstract.

The model of reflection and refraction free-form design problem is based on energy conservation and

results in a fully nonlinear partial differential equation. The equation is the Monge-Ampere type PDE (MA)

also arising in various research fields such as differential geometry, mass transportation, geostrophic fluid

and optical design problem. Existence and regualrity have been shown by Caffarelli, Oliker, Mader and

Wang etc. Numerical methods such as finite difference methods proposed by Oberman etc, Dean and

Glowinshi, and finite element methods proposed by Feng and Neilan and Awanou have been successfully

applied to solve the standard MA equation. For geometrical optical design, freeform reconstruction and

design methods have been proposed by Minano, Benitez, Neubauer and Oliker, etc.

In this paper, We proposed a new design method for single freeform reflective (or refractive) surface

tailored to redistribute the radiant flux onto a prescribed illumination pattern. The freeform surface is

assumed to be very flat and smooth in Lagrangian local coordinates. To fulfill this assumption, we follow

Neubauer’s idea and Parkyn’s equi-flux map. As a result, the energy transfer between the light source and the

target illuminance is then localized to each corresponding grid cell. Then, a freeform can be constructed by

solving a reduced MA equation on each local domain. We solve the reduced MA equation by Feng and

Neilan’s vanished moment method using well-known HCT finite element. Several numerical tests are

presented to demonstrate the accuracy and robustness of our algorithm. Both freeform designs for uniform

and non-uniform illumination over planar and non-planar target domains are shown in our tests.


26

Chihiro NAKAJIMA


Address:2-1-1, Katahira, Aoba-ku, Sendai, Miyagi, 980-8577,

Japan

1. Education

Ph. D of Arts and Sciences, University of Tokyo, Japan (2009)


2010-2013 Postdoc, Department of Physics, Kyushu University, Japan

2013-present Assistant Professor, WPI-AIMR, Tohoku University, Japan


Statistical mechanics, Computational complexity, knot theory, information theory, polymer physics



1. C. H. Nakajima, Interdisciplinary Information Science 19, 51-56 (2013)

2. C. H. Nakajima and T. Sakaue, Soft Matter 9, 3140-3146 (2013)

3. C. H. Nakajima and T. Sakaue, J. Phys. Soc. Jpn. 81, 035001 (2012)

4. C. H. Nakajima and T. Sakaue, Prog. Theor. Phys. Suppl. 191, 205-209 (2011)

5. C. H. Nakajima and K. Hukushima, Phys. Rev. E 78, 041132 (2008)


27

Statistical mechanics reconstruction of the structure of gold

nano-cluster

Chihiro NAKAJIMA

Affiliation WPI-AIMR, Tohoku University

Address 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan

Phone: +81 22 217 6149


Abstract

Recently, with a help of a discrete tomography transmission electron microscopy, it is possible to obtain a

resolution of an atomic scale the two-dimensional projection view of the nanocrystals. With the context of the

nanoscale experimental data processing, we are developing the method to reconstruct a three-dimensional

arrangement of atoms in a nanocrystal, especially focusing on its surface roughness and the structure of pores,

by integrating a few experimental data of scattering intensity which is two-dimensional projection of stacking

atoms.

This reconstruction process is a discrete inverse problem and can be regarded as a kind of nonogram

puzzles whose computational properties are investigated. We solve the inverse problem by trying out

possible atomic arrangements which are generated probabilistically. With this approach, the problem

becomes a statistical mechanics problem of finding an optimized state while exploring the complex landscape

of the cost function. Here the exploration is dealt with by applying a replica exchange Monte Carlo method,

which has been applied successfully to spin-glass problem and several other complex optimization problems

branching from it.

In general, exponential number of three-dimensional structures still remain as candidate only with

constraint condition from experimental data. But by assuming and utilizing the sparseness to the structure, we

can narrow the candidate down to almost unique. This technique is a variation of compressed sensing. We

started from reconstructing artificial three dimensional structure to examine the validity of this method and

successfully and almost uniquely reconstructed the structure. In present we apply the method to experimental

situation; reconstructing structure of nanoporous gold from three projected data.

Statistical inference and compressed sensing is developed in various fields of neural biology, protein

structure determination, and gene expression analysis. We expect that this study becomes a first example of

successful application of the method in the field of material science.


28

Guan-Yu Chen

Affiliation:Department of Applied Mathematics, NCTU

1. Education

Ph.D. in Mathematics, Cornell University (2006)


Visiting Assistant Professor, National Center for Theoretical Science, Taiwan (2006/8 ~ 2007/7)

Assistant Professor, Dept. of Applied Mathematics, NCTU, Taiwan (2007/08 ~ 2011/7)

Associate Professor, Dept. of Applied Mathematics, NCTU, Taiwan (2011/08 ~ )


Probability Theory, Stochastic Processes


Young Theorist Award of NCTS (2008)

Award for Junior Research Investigators, College of Science, NCTU (2009)

TMS Young Mathematician Award (2011)

NCTS Center Scientist (2007/8 ~ 2009/7, 2010/8 ~ 2011/7, 2013/8~2014/7)

5. Recent papers

Guan-Yu Chen and Laurent Saloff-Coste, Spectral computation for birth and death chains. Stochastic

Processes and their applications, 124 (2014), 848-882

Guan-Yu Chen and Laurent Saloff-Coste, Comparison of cutoffs between lazy walks and Markovian

semigroups. J. Appl. Probab. Volume 50, Number 4 (2013), 943-959.

Guan-Yu Chen and Laurent Saloff-Coste, On the mixing time and spectral gap for birth and death

chains. ALEA, Lat. Am. J. Probab. Math. Stat. Volume 10, Number 1 (2013), 293-321.

Guan-Yu Chen and Laurent Saloff-Coste, The L2-cutoff for reversible Markov processes. J. Funct.

Anal. 258 (2010), 2246-2315.

Guan-Yu Chen and Laurent Saloff-Coste, The cutoff phenomenon for ergodic Markov processes.

Electronic Journal of Probability, 13 (2008), 26-78.


29

A Random Time in Sampling One-Dimensional Distributions

Guan-Yu Chen

Department of Applied Mathematics, NCTU

Address: 1001 Ta Hsueh Road, Hsinchu 30050, Taiwan

Phone: +886-3-5712121 Ext:56421, Fax: +886-3-5724679

E-mail:[email protected]

URL: http://jupiter.math.nctu.edu.tw/~gychen/index.htm

Abstract

The Markov chain Monte Carlo (MCMC for short) method is a frequently used technique in sampling

probability distributions on graphs. There are many interdisciplinary applications including statistic physics,

computer science, biology and more. When a MCMC algorithm is implemented, the time to stop and sample

is the most important issue and the threshold time (or the mixing time) provides an answer to this question. A

quantitative estimation of the threshold time is either unavailable or very complicated even the graph has the

simplest structure, the one-dimensional path. In this talk, we will give a short introduction of the MCMC

mechanics and then go straight forward to the subject of birth and death chains. As a comparison of the

mixing time, which is a deterministic quantity, we provide a random time to halt the MCMC sampling and

make a quantitative estimation of this method.


30

CHUN-YEN, CHANG

Chun-Yen Chang, National Endowed Chair Professor,

President Emeritus, National Chiao Tung University

(NCTU), and National Academy of Engineering, USA.

Prof. Chun Yen Chang was born on Oct. 12th, 1937 in KaoXiong, Taiwan.

Graduated from EE department of National Cheng Kung University in 1960 with

BS degree, the electronics institute of National Chiao-Tung University in 1962

with MS degree, and in 1970 with PhD degree.

He and his Colleagues, at National Chiao-Tung University (NCTU), Taiwan, successfully fabricated the

first Si Planar Transistor in 1964(J. of Engineering, p 631, 1965), MOSFET in 1966(SSE, p441, 1969) and

LED in 1970 , which was regarded as the earliest and the foundation of Taiwan Semiconductor Research in

Taiwan.

By 1980, he and his team members helped to establish Hsinchu Science Based Industrial Park (HSBP)

under the leadership of the National Science Council of Taiwan. And helped to establishing UMC (1980),

TSMC (1987), Prime View (1998), Display (2000) etc.

In 1988, He proposed and became the founding director of the National Nano-Device Laboratories in

Taiwan (NDL).

In 2001, he proposed and founded the National SOC/SIP Program (2001-2005), in order to promote the

national competitiveness of system on chip design capabilities. This program has attracted and recruited

340 world classexperts. The impact was reflected by the number of papers contributed from Taiwan in

ISSCC was from nothing to No.3 in the world since 2004 (No.2 in VLSI –circuits –Kyoto 2013)

Recently, he and his group worked on the sub 10nmfinfets, 2nm quantum sheet gate all around (GAA)

junction-less transistors, in which, an excellent SS of 60 mV/dec was achieved. (VLSI, technology, 2013,

Kyoto).

His academic achievements include: 1."quantum transport in superconductor-semiconductor interface"

in 1960. 2. “Carrier transport in metal -semiconductor barrier" (Solid State Electronics, p727, 1970).

3.”Specific Contact Resistance in metal-semiconductor "(Solid State Electronics, p525, 1971) 4. Invented

"the method of Low Pressure MOCVD by using tri-ethyl Ga"(Journal of Crystal Growth, V. 55,

No.1,p24.,1981) etc.

He was elected the academician of Academia Sinica, in 1996. The foreign associate, National Academy

of Engineering USA, in 2000. The Japan Nikkei Asia Award in Science in 2007. He has been the MTS of

Bell Telephone Laboratories, in 1981, and the visiting professor at U. Florida (1987), Stuttgart U. (1990,

1993, 1996).

He became full professor at NCTU (1969), Dean of Engineering NCTU (1990), founding president of

NDL (1990-1996).president of NCTU (1998-2006). He is now the Life-Long National Endowed Chair

Professor of the Nation and at NCTU.


31

FUTURE JAPAN AND TAIWAN

Chun Yen Chang

Department of Electrical and Computer Engineering,


1001 UniversityRd. Hsinchu 30010 Taiwan

Phone: +886-3-5712121-52981


Abstract

This talk is essentially an active education of several things. First, though demonstrations of

green-energy-efficient 2nm Si-FINFET, followed by thousand-volt, huge-energy-efficient HEMT devices, I

will arrive with that in 21st century, the MOSTS of strategic R&D are focusing on medicine, energy- storage,

and human-touch enterprises. In order to the strategic corporations for Taiwan and Japan, big ideas, big

people, and big money are essential. The BEST is for yourself; the GOOD is for mankind!


32

Seiji SAMUKAWA

Affiliation:Advanced Institute of Materials Research

and Instutute of Fluid Science、Tohoku University

Address: 2-1-1 Katahira Aoba-ku Sendai, Miyagi 980-8577, Japan

1. Education

Keio University B.S. 1981 Instrumentation Engineering

Keio University Ph.D 1992 Instrumentation Engineering


1989-2000 :Principal Researcher, R&D Group, NEC Corporation

2000-presen :Professor, Institute of Fluid Science, Tohoku University

2007- present :Director of nano-micro cluster of Institute of Fluid Science, Tohoku University

2008- 2014 :Distinguished Professor in Tohoku University

2013-:Director of Innovative Energy Research Center of Institute of Fluid Science, Tohoku

University, Director of Core Technology Consortium for Advanced Energy Devices, Tohoku

University

3. Scientific Interests

Ultimate To-down Professor for Nano-scale Devices


2008 :Ichimura Award in the New Technology Development Foundation,

2009 : Prizes for Science and Technology: The Commendation for Science and Technology by the

Minister of Education, Culture, Sports, Science and Technology,

2010 :Plasma Prize in American Vacuum Society.


1.Y. Kikuchi, A. Wada, T. Kurotori, M. Nakano, K. Y. Inoue, T. Matsue, T. Nozawa, and S.

Samukawa, Conductive amorphous hydrocarbon film for Bio-sensor formed by low temperature

neutral beam enhanced chemical vapor deposition, Carbon, Vol. 67 (2014) pp. 635-642.

2. C. Thomas, Y. Tamura, T. Okada, A. Higo and S. Samukawa, Estimation of activation energy and

surface reaction mechanism of chlorine neutral beam etching of GaAs for nanostructure fabrication,

Journal of Physics D: Applied Physics, Vol. 47 (2014) pp. 275201.

3. X. Gu, Y. Kikuchi, T. Nozawa, and S. Samukawa, A new metalic complex reaction etching for

transition metals by a low-temperature neutral beam process, Journal of Physics D: Applied Physics,

Vol. 47 (2014) pp. 322002 (4pp).

4.C.-H. Huang, C.-Y. Su, T. Okada, L-J Li, K-I Ho, P-W Li, I-H Chen, C. Chou, Chao-Sung Lai, and

Seiji Samukawa, Ultra-low-edge-defect graphene nanoribbons patterned by neutral beam, Carbon,

Vol. 61 (2013) pp. 229-235.

5. Y. Tamura, T. Kaizu, T. Kiba, M. Igarashi, R. Tsukamoto, A. Higo, W. Hu, C. Thomas, M. E.

Fauzi, T. Hoshii, I. Yamashita, Y. Okada, A. Murayama and S. Samukawa, Quantum size effects in

GaAs nanodisks fabricated using a combination of the bio-template technique and neutral beam

etching, Nanotechnology, Vol. 24 (2013) pp. 285301.

http://dx.doi.org/10.1016/j.carbon.2013.10.037



http://dx.doi.org/10.1088/0022-3727/47/27/275201

http://dx.doi.org/10.1088/0022-3727/47/27/275201

http://dx.doi.org/10.1088/0022-3727/47/27/275201

http://dx.doi.org/10.1088/0022-3727/47/32/322002

http://dx.doi.org/10.1088/0022-3727/47/32/322002

http://dx.doi.org/10.1088/0022-3727/47/32/322002




http://dx.doi.org/10.1088/0957-4484/24/28/285301

http://dx.doi.org/10.1088/0957-4484/24/28/285301

http://dx.doi.org/10.1088/0957-4484/24/28/285301

http://dx.doi.org/10.1088/0957-4484/24/28/285301


33

Neutral Beam Technology

–Defect-free Nanofabrication for Novel Nano-materials and Nano-devices-

Seiji SAMUKAWA

Advanced Institute for Materials Research &

Innovative Energy Research Center, Institute of Fluid Science, Tohoku University

2-1-1 Katahira Aoba-ku Sendai, Miyagi 980-8577, Japan

Phone: +81-22-217-5240, Fax: +81-22-217-5240

e-mail:[email protected],

URL:http://www.ifs.tohoku.ac.jp/samukawa/index.htm

Abstract

In this paper, I introduce the ultimate nanofabrication processes using neutral-beam sources and discuss

the fusion of top-down and bottom-up processing for future nanoscale devices. To achieve charge-free and

UV photon irradiation damage-free processes, we have developed a new neutral beam generation system

based on my discovery that neutral beams can be efficiently generated from the acceleration of negative ions

produced in pulsed plasmas. Using the neutral beam processing, we successfully demonstrated sub-50nm

damage-free gate electrode etching, damage-free Si channel etching for 45 nm fin-FETs, ultra-thin gate

dielectric film formation for 32 nm fin-FETs, damage-free low dielectric film deposition for 22 nm FETs, and

low-damage surface modification of carbon materials (including nanotubes, graphenes and organic

moleculers) for future nanodevices. More recently we have investigated processing technologies based on the

combination of biotechnology with neutral-beam-based nano-processes, i.e., bio-nano processes, for future

nanoelectronics devices and successfully achieved the fabrication of sub-10-nm-diameter and high density Si,

Ge, GaAs, InGaAs and Graphene nanodisk (nanodot) array structures. The quantum effects of these

nano-scaled structures were shown to manifest themselves at room temperature due to the damage-free

surfaces made possible by the neutral beam processes. Now, by using these nanodisk structures, we are

actively developing “Novel Quantum Effect Devices”, such as quantum dot solar cell for high energy

conversion efficiency of more than 45% and quantum dot laser.

We are actively developing ultra-low-damage nanofabrication techniques using neutral beam technology

that tap into the essential nature of nano-materials and nano-structures, and developing innovative

nanodevices.


34

Pu-Wei Wu

Affiliation:Department of Materials Science and Engineering


Address:1001 University Road, Hsin-Chu, Taiwan 300, R.O.C.

1. Education

BS. Department of Materials Science and Engineering

National Tsing Hua University (1992)

Ph.D. Department of Materials Science and Engineering, UCLA (1999)


Assosist Professor, NCTU 2005-2008

Associate Professor, NCTU 2008-2011

Professor, NCTU 2011-

V. Chair, MSE Dept. 2014-

3. Scientific Interests

Electrocatalysts for Fuel Cell Applications

Colloidal Crystals and Inverse Opals for Engineering Applications



1.Huang et al., *,”Structural Characterization of Colloidal Crystals and Inverse Opals Using

Transmission X-ray Microscopy”, Journal of Colloid and Interface Science, vol.426, p. 199-205

(2014).

2.Lee et al., ”Dealloyed Pt2Os Nanoparticles for Enhanced Oxygen Reduction Reaction in Acidic

Electrolytes”, Applied Catalysis B: Environmental, vol. 150-151, p. 636-646 (2014).

3.Hsieh et al., “Using Decomposed Nation Ionomers to Anchor Pt Nanoparticles and Improve Their

Durability during Methanol Electro-oxidation”, Journal of Power Sources, vol. 245, p. 315-323

(2014).

4.Kuo et al., “Surface Modification of Commercial PtRu Nanoparticles for Methanol

Electro-oxidation”, Journal of Power Sources, vol. 240, p. 122-130 (2013).

5.Chang et al., “Synthesis of Large Surface Area Carbon Xerogels for Electrochemical Double Layer

Capacitors”, Journal of Power Sources, vol. 223, p. 147-154 (2013).


35

Synthesis and Characterization of Nanostructured

Electrocatalysts for Fuel Cell Applications

Pu-Wei Wu

Department of Materials Science and Engineering, National Chiao Tung University

1001 University Road, Hsin-Chu, Taiwan R.O.C.

Phone: +886-3-5131227, Fax: +886-3-5724727

e-mail: [email protected] http://web.it.nctu.edu.tw/~amet/

Abstract

Electrocatalysis is an interfacial phenomenon that has significant impacts in fuel cell applications. In this

presentation, we showcase our research efforts in the synthesis and fabrication of tailored-made

nanoparticles with desirable surface structure/composition for comparable or even better electrocatalytic

activities than that of commercially available Pt nanoparticles. The surface modification schemes we adopt

include galvanic displacement reaction and Cu under-potential deposition that enable the formation of

monolayered deposit atop an alloyed nanoparticle. In addition, we present our recent activities in carbon

surface functionalization via intentional decompositon of Nafion ionomers. The breakdown of Nafion

ionomers engenders hydrophilic moieties that attaches to the carbons for better wetting and greater

adsorption of ions from the electrolyte.


36

Kumi INOUE

Affiliation:Graduate School of Environmental Studies,

Tohoku University,

Address: 6-6-11 Aramaki-Aza-Aoba Aoba-ku, Sendai 980-8579,

Japan

1. Education

2007.10-2010.8 Ph.D Course in Environmental Chemistry, Tohoku University

Obtained degree: Doctor of Philosophy

1991.4-1995.3 Department of Agricultural Chemistry, Kyoto University


2014.4-Present Lecture in Graduate School of Environmental Studies, Tohoku University

2013.4-2014.3 Assistant Professor in Micro System Integration Center, Tohoku University

2011.4-Present Part-time Lecturer in Tohoku Institute of Technology

2010.4-2012.3 Research Fellow in Micro System Integration Center, Tohoku University

2005.2-2010.4 Assistant Researcher in Graduate School of Environmental Studies, Tohoku

University

2002.4-2005.2 Supervisory Researcher in Miyagi Miso & Soy Sauce Cooperative Association

1995.11-2002.4 Researcher in Miyagi Miso & Soy Sauce Cooperative Association


Electrochemical sensor array for biological imagings

Miniaturized biosensors for point of care testings


2013.3 Excellent Woman Researcher Award of The Electrochemical Society of Japan

2011.11 ACCS Best Paper Presentation award in the 9th Asian Conference on Chemical Sensors


S. Takano, S. Shiomoto, K. Y. Inoue, K. Ino, H. Shiku, T. Matsue. Electrochemical approach for

development of a simple method to detect the cell apoptosis based on caspase-3 activity. Anal. Chem.,

86 (2014) 4723–4728.

Y. Kikuchi, A. Wada, T. Kurotori, M. Nakano, K. Y. Inoue, T. Matsue, T. Nozawa, S. Samukawa.

Conductive amorphous hydrocarbon working as electrode formed by neutral beam enhanced chemical

vapor deposition below room temperature. Carbon, 67 (2014) 635-642.

K. Y. Inoue, S. Takano, S. Takahashi, Y.e Ishida, K. Ino, H.i Shiku, T. Matsue. Screen-printed

endotoxin sensor based on amperometry using novel p-aminophenol conjugated substrate for Limulus

amebocyte lysate protease reaction. Analyst, 138 (2013) 6523-6531.

M. Sen, K. Ino, K. Y. Inoue, T. Arai, T. Nishijo, A. Suda, R. Kunikata, H. Shiku, T. Matsue.

LSI-based amperometric sensor for real-time monitoring of embryoid bodies. Biosens. Bioelectron.

48 (2013) 12-18.

K. Y. Inoue, M. Matsudaira, R. Kubo, M.i Nakano, S. Yoshida, S. Matsuzaki, A. Suda, R. Kunikata,

T. Kimura, R. Tsurumi, T. Shioya, K. Ino, H. Shiku, S. Satoh, M. Esashi, T. Matsue. LSI-based

Amperometric Sensor for Bio-imaging and Multi-point Biosensing. Lab Chip 12 (2012) 3481-3490.


37

Biosensing and Bioimaging with Integrated Electrochemical

Sensor Arrays

Kumi INOUE,* Tomokazu MATSUE

Graduate School of Environmental Studies, Tohoku University

6-6-11 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan

Phone: + 81-22-795-6167, Fax: 81-22-795-6167


URL: http://www.che.tohoku.ac.jp/~bioinfo/

Abstract

We have developed LSI-based amperometric sensor arrays called “Bio-LSI” (Fig. A-D). Amperometry is often used for

electrochemical biosensing including self blood glucose measurement because of its quantitativity, highly sensitivity and usability.

With an integration of 400 amperometic sensors into a 5 mm×5 mm area on LSI, we successfully realized Bio-LSI as a

world-leading platform for electrochemical bio-imaging and multi-point biosensing. Our Bio-LSI has a wide dynamic range from

±1 pA to ±100 nA with a spacial resolution of 250 μm and a temporal resolution of 18-125 ms/400 points.1) We made some

demonstration of bio-imaging with Bio-LSI including flow of biochemical spieces,1) enzyme activities (Fig. E),1) cell respiration

activities2), cell differentiation markers2,3) (Fig. F) and movement of microbes (Fig. G). We also developed an improved version of

Bio-LSI (2G-Bio-LSI) with 4-mode selectable function (off, electrometer, V1 and V2), in order to enable complex measurements

and operations. Demonstrations of 2G-Bio-LSI such as a display of dot picture showing dox currents of 400 sensors (Fig. H) , a

simultaneous detection of O2 and H2O2 on one chip (Fig. I), and selective modification of sensor electrodes for highly sensitive

H2O2 detection revealed the 2G-Bio-LSI to be a promising tool for a wide range of analytical fields. Another development to

improve our Bio-LSI is integration of carbon materials onto the sensor electrodes, based on two joint researches with different

academic fields in WPI-AIMR, Tohoku University. One is a research with Samukawa laboratory using neutral beam enhanced

chemical vapor deposition (NBECVD).4) The other is a research with Tanaka laboratory employing a film transfer technology

using an adhesive resin layer for monolithic integration of boron doped diamond (BDD) microelectrodes on a LSI substrate. We

successfully got real time images of diffusion of biochemical spieces such as dopamine and histamine5) with these carbon material

integrated Bio-LSIs.

References:

1) K. Y. Inoue, et al. Lab Chip 12 (2012) 3481-3490. 2) M. Sen, et al. Biosens. Bioelectron. 48 (2013) 12-18. 3) M. Sen, et al.

Anal. Methods, 6 (2014) 6337–6342. 4)Y. Kikuchi, et al. Carbon 67 (2014) 635-642. 5) T. Hayasaka et al. Proceedings of the

27th IEEE International Conference on Micro Electro Mechanical Systems (2014) 322-325

Figure. (A-D) Photograph of Bio-LSI and sensor area. (E) Amperometric image of diffusion of H2O2 generated by enzyme reaction of glucose oxidase. (F) Photograph (a) and amperometric image (b) of embryo body with alkaline phosphatase activity. (G) Photograph (a) and amperometric image (b) of moving daphnia. (H) Dot picture showing the redox current of 400 sensors on 2G-Bio-LSI. (I) Simultaneous detection of O2 and H2O2 on one chip.


38

YewChung Sermon WU

Affiliation:Department of Materials Science and

Engineering,National Chiao Tung University

Address: EF 206A, Building VI

1001 University Rd., Hsinchu 300, Taiwan, R. O. C.

1. Education

Professor Wu received the Ph.D degree in Materials Science and Engineering and Electrical

Engineering from Stanford University in 1998. His Ph.D dissertation was on wafer bonding process

for optoelectronic devices.


After his graduation, he joined Cypress Semiconductor, San Jose, CA. In 1999, he joined the faculty

of National Chiao Tung University (NCTU), and currently is a professor, Department of Materials

Science and Engineering.


(1) wafer bonding for optoelectronic devices including bonding mechanism and high brightness

LEDs (2) patterned sapphire substrate for high brightness GaN-based LEDs, and (3) diamond

composite substrate for thermal management of optoelectronic devices.



1."Morphologies and Plane Indices of Pyramid Patterns on Wet-etched Patterned Sapphire Substrate,"

Materials Letters, 118 (2014), No9, 72-75.

2."The formation of smooth facets on wet-etched patterned sapphire substrate," ECS Journal of Solid

State Science and Technology, 3 (2014), No9, R5-R8.

3.“Evolution of Bottom c-Plane on Wet-Etched Patterned Sapphire Substrate," ECS Journal of Solid

State Science and Technology, 2 (2013), No9, R169-R171.

4.“The formation and the plane indices of etched facets of wet etching patterned sapphire substrate," J.

Electrochem. Soc., 159 (2012), No6, D362-6.

5.“Improved crystal quality and performance of GaN-based light-emitting diodes by decreasing the

slanted angle of patterned sapphire," Appl. Phys. Lett. 96(2010), 051109.


39

Growth of Zincblende GaN on Patterned c-plane Sapphire

Substrate

YewChung Sermon WU

Department of Materials Science and Engineering, National Chiao Tung University

EF 206A, Building VI

1001 University Rd., Hsinchu 300, Taiwan, R. O. C.

Phone: +886-3-5131555, Fax: +886-3-5724727

e-mail: [email protected], [email protected]

URL:http://www.mse.nctu.edu.tw/en/wu_yewchung_sermon.html

Abstract

Pattern sapphire substrate (PSS) has been used to improve the performance of GaN-based LEDs. This is

because most of the GaN growth was initiated from bottom c-planes. As the growth time increased, GaN

epilayers covered patterns by lateral growth causing the threading dislocation to bend toward the patterns

resulting in the improvement of epilayer quality, internal quantum efficiency and light extraction efficiency.

Normally these GaN was wurtzite structure. In this study, wet-etched pattern c-plane sapphire substrate was

used to grow zincblende GaN.


40

Hung Kim Nguyen

Affiliation: WPI-Advanced Institute for Materials Research,

Tohoku University

Address: 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan

1. Education

Jan. 2009 – July 2012: Ph.D. student at the Department of Physics, University of Pisa, Pisa, Italy.

Sep. 2001 – Feb. 2007: Bachelor and Master student at the Department of Physics, Lomonosov

Moscow State University, Moscow, Russia.


Sep. 2012 – present: Research Associate at WPI-Advanced Institute for Materials Research, Tohoku

Univerisity, Sendai, Japan.

Mar. 2007 – Dec. 2008: Researcher at the Department of Polymer Materials, Institute of Chemistry,

Vietnamese Academy of Science and Technology, Hanoi, Vietnam.


+ Atomic force microscopy based methods

+ Surface dynamics of amorphous polymers

+ Confinement effects on mechanical and dielectric relaxation of polymer films


Scholarship of Galileo Galilei Ph.D. School, University of Pisa

5. Recent papers :(5 papers) 1. Nguyen, H. K.; Labardi, M.; Capaccioli, S.; Lucchesi, M.; Rolla, P.; Prevosto, D. Plasticization

in ultrathin polymer films: the role of supporting substrate and annealing. Macromolecules, 46,

555-561 (2013).

2. Nakajima, K.; Nguyen, H. K.; Wang, D. Length scale of mechanical heterogeneity in a glassy

polymer determined by atomic force microscopy. AIP Conf. Proc. 1518, 470-473 (2013).

3. Labardi, M.; Park, J. H.; Nguyen, H. K.; Prevosto, D.; Seong, C.-Y.; Mrzel, A.; Scalia, G. Local

dielectric spectroscopy of polyvinylpyrrolidone-Mo6S2I8 nanowire composite. J. Non-Cryst.

Solids, 379, 224-228 (2013).

4. Nguyen, H. K.; Labardi, M.; Capaccioli, S.; Lucchesi, M.; Rolla, P.; Prevosto, D. Interfacial and

annealing effects on primary α-relaxation of ultrathin polymer films investigated at nanoscale.

Macromolecules, 45, 2138-2144 (2012).

5. Nguyen, H. K.; Prevosto, D.; Labardi, M.; Capaccioli, S.; Lucchesi, M.; Rolla, P. Effects of

confinement on structural relaxation in ultrathin polymer films investigated by local dielectric

spectroscopy. Macromolecules, 44, 6588-6593 (2011).


41

Heterogeneous Behavior in Dynamics at the Surface Layer

of Glassy Polymer Films

Hung K. Nguyen

WPI-Advanced Institute for Materials Research, Tohoku University

2-1-1 Katahira, Aoba, Sendai 980-8577, Japan

Phone: +81-22-217-5928, Fax: +81-22-217-5975


URL: http://west.wpi-aimr.tohoku.ac.jp/

Abstract

Despite increasing evidence that surface dynamics of glassy polymers can substantially alter from the

bulk behavior, a direct measurement of dynamical properties of polymer chains located at very near surface

remains a major challenge. By repeatedly scanning a small surface region of glassy polystyrene films using

dynamic atomic force microscopy with an ultra-sharp tip of ~ 1-nm apex radius, we here show a direct

observation of nanoscale heterogeneous domains in dynamics and their time-evolution at the polymer surface

layer. The length scale of these domains was measured to be ~ 2.1 nm and their lifetime was found on the

order of ~ 102 s, in agreement with the length and time scales of heterogeneous dynamics reported for bulk

polymers around the glass transition. This finding therefore provided experimental evidence of the existence

of a ~ 2.1-nm liquid-like layer at the glassy polymer surface as well as direct imaging of dynamical

heterogeneities in amorphous polymers. In addition, Persistenet Homology, a mathematic tool for

characterizing topological features of structural images, was preliminarily applied to analyze the arrangement

behavior of the observed heterogeneous domains.


42

Yuan-Chieh TSENG

Affiliation:National Chiao Tung University

Dept. of Materials Sci. & Eng., National Chiao Tung University

Address: 1001 Ta Hsueh Road, Hsin-Chu, Taiwan 30010

1. Education

Ph.D, Materials Science & Engineering, Northwetsern, U. S. A 2009

M. S., Materials Science & Engineering, National Tsing Hua Univeristy, Taiwan 2002

B. S., Materials Science & Engineering, National Tsing Hua Univeristy, Taiwan 2000


Associate Professor, National Chaio Tung Univeristy, 2013 August ~ present

Assistant Professor, National Chaio Tung Univeristy, 2009 August ~ 2013 July


Spintronics materials, physical properties of materials, synchrotron radiation, magnetic oxides,

Interfacial magnetism


1. Teaching award, National Chiao Tung University, 2104 2. Teacher of the year, College of Engineering, National Chiao Tung University, 2104 3. Dr. Joseph Chou Memorial Scholarship, North America Taiwanese Engineers’ Association 4. Argonne student scholarship, Department of Energy (DOE), 2005~2009 (special appointee). 5. Walter P. Murphy Fellowship, McCormic school of Engineering, Northwestern University, 2004 6. Thesis award for Master student, Dept. Materials Science & Engineering, NTHU, 2002


1. C. Y. Yang, Y. H. Lu, W. H. Lin, M. H. Lee, Y. Jung Hsu, H. J. Lin, and Y. C. Tseng* “Structural

imperfections and attendant localized/itinerant ferromagnetism in ZnO”, Journal of Physics D:

Applied Physics 47, 345003 (2014)

2. C .C. Huang, S. J. Chang, C. Y. Yang, H. Chou, and Y. C. Tseng* “Instrument for x-ray absorption

spectroscopy with in-situ electrical control characterizations”, Review of Scientific Instruments, 84,

123904 (2013)

3. Y.C. Tseng*, D. Paudya, Ya. Mudryk, V. K. Pecharsky, K. A. Gschneidner, Jr., and D. Haskel,

"Electronic contribution to the enhancement of the ferromagnetic ordering temperature by Si

substitution in Gd5(SixGe1-x)4", Physical Review B 88, 054428 (2013)

4. C. Y. Yang, L. W. Wang, P. A Chen, H. J. Lin, C. H. Lai and Y. C Tseng*, “Sharp Variation in

Coercivity and Magnetic Interactions in Patterned CoxNi1-x Nanoarrays”, Journal of Applied Physics,

114, 063902 (2013)

5. Y.C. Tseng*, H. J. Ma, C. Y. Yang, Ya. Mudryk, V. K. Pecharsky, K. A. Gschneidner Jr., N. M.

Souza-Neto and D. Haskel, "Effect of Si-doping and applied pressure upon magneto-structural

properties of Tb5(SixGe1-x)4 magnetocaloric compounds", Physical Review B 83, 104419 (2011)


43

Spintronic Materials Explored by Modern X-ray Absorption

Spectroscopy

Yuan-Chieh TSENG

Dept. of Materials Sci. & Engeering, National Chiao Tung University

1001 Ta Hsueh Road, Hsin-Chu, Taiwan 30010

Phone: +886-3-5731898, Fax: +886-3-5724727

e-mail:[email protected] URL: http://www.nctumse.url.tw/index.htm

Abstract

In this talk I will present how to use x-ray absorption spectroscopy (XAS) and x-ray magnetic circular

dichroism (XMCD) to investigate spintronic materials, and how to improve our understanding of spintronic

materials by the use of modified XAS/XMCD techniques.

In first part I will report a study focusing on the local symmetry of Cu-dopant and resultant structural

imperfections in mediating Zn1-xCuxO nanoaprticles’ ferromagnetism (FM). Prepared by an antisolvent

method, Cu appeared to preferably populate on the basal plane of ZnO with a local symmetry of [CuO4]. This

unique symmetry was antiferromagnetic in nature, while electronically and structurally coupled to surrounded

oxygen vacancies (Vo) that yielded a localized FM, because of a strong dependency on the number/location

of the [CuO4] symmetry. In surprise, the FM of undoped but oxygen-deficient ZnO appeared to be more

itinerant and long-range, where Vo percolated the FM effectively and isotropically through oxygen’s

delocalized orbital. By adopting the approach of structural imperfection, this study clearly identifies Vo’s

(defect’s) true characters in mediating the FM of magnetic semiconductors which has been thought of as a

long standing debate, and thus provides a different thinking about the traditional extrinsic

ferromagnetic-tuning in the semiconductors. It even illuminates recent researches concerning the intrinsic FM

of low-dimensional systems which contain defects but non-magnetic elements.

In second part I will report a developed synchrotron-based setup capable of performing XAS and XMCD

with simultaneous electrical control characterizations, at National Synchrotron Radiation Research Center

(NSRRC), Taiwan. The setup can enable research concerning electrical transport, element- and

orbital-selective magnetization with an in-situ fashion. It is a unique approach to the real-time change of

spin-polarized electronic state of a material/device exhibiting magneto-electric responses. The performance of

the setup was tested by probing the spin-polarized states of cobalt and oxygen of Zn1-xCoxO dilute magnetic

semiconductor under applied voltages, both at low (~20K) and room temperatures, and signal variations upon

the change of applied voltage were clearly detected. This setup helps identify the roles of all physical

variables affecting the magneto-electric effects, which can fundamentally improve the spintronic technology.

Research topics related to (i) electrical control electronic structures and (ii) element-specific study of

magneto-electric responses, will be greatly benefited by the use of the setup.


http://www.nctumse.url.tw/index.htm


44

Nobuaki AOKI


Address:2-1-1, Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan

1. Education

2006.5 Dr. Eng., Dept. Chemical Engineering, Graduate School of Engineering, Kyoto University


2006.6–2011.3 Assistant Professor, Dept. Chemical Engineering, Graduate School of Engineering,

Kyoto University

2011.4–Present Assistant Professor, WPI-AIMR, Tohoku University


Nanoparticle synthesis in contious system, Viscosity and dispersion of nanofluid


2012.3 The SCEJ Award for Outstanding Young Researcher


[1] “Hydrothermal Synthesis of Cerium Oxide Nanoassemblies through Coordination Programming

with Amino Acids”A.-A. Litwinowicz, S. Takami, D. Hojo, N. Aoki, T. Adschiri, Chem. Lett., in

press.

[2] “Hydrothermal Synthesis of Inorganic–Organic Hybrid Gadolinium Hydroxide Nanoclusters with

Controlled Size and Morphology”Dalton Trans., 2013, 42, 16176.

[3] “Supercritical hydrothermal synthesis” in Handbook of Advanced Ceramics, Second Edition:

Materials, Applications, Processing and Properties, Elsevier Ltd., Oxford, UK, T. Adschiri, S. Takami,

T. Arita, D. Hojo, K. Minami, N. Aoki, 2013, pp. 949–978 (Chap. 11.5.1).

[4] “Design of Confluence and Bend Geometry for Rapid Mixing in Microchannels”, N. Aoki, T.

Fukuda, N. Maeda, K. Mae, Chem. Eng. J., 2013, 227, 198.

[5] “Flocculation and re-dispersion of colloidal quantum dots”, N. Manabe, S. Hanada, N. Aoki, Y.

Futamura, K. Yamamoto, T. Adschiri, J. Chem. Eng. Japan, 2012, 45, 917.


45

Particle Re-dispersion and

Viscosity of Nanofluid in Shear Stress Field

Nobuaki AOKI

WPI-AIMR, Tohoku University

2-1-1, Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan

Phone: +81-22-217-6323, Fax: +81-22-217-6323

e-mail: [email protected],

URL: http://www.wpi-aimr.tohoku.ac.jp/ajiri_labo/

Abstract

Nanoparticles tend to flocculate because of its high surface energy. An easy and effective method for

producing a colloidal solution in which flocculated nanoparticles become re-dispersed by using a back

pressure valve is proposed. Initially, a solution of nanoparticles (CdSe/ZnS-core/shell quantum dots) is left to

flocculate by storing water-soluble nanoparticles (modal diameter 13.5 nm) for 2 days at 40°C. A large shear

stress is applied to the solution in a back pressure valve for re-dispersing the flocculated particles. The

re-dispersibility is evaluated through the measurement of their size distribution. The results show that the

method re-dispersed the flocculated particles and reduces their modal diameter from over 6000 nm to 44 nm.

Then, we identify the mechanism of re-dispersion in this valve from the ratio of the applied shear stress to

the van der Waals interactive force. From the results, shear stress dominates the re-dispersion of flocculated

particles. Moreover, we can predict the particle diameter after the re-dispersion from the ratio of the shear

stress to the van der Waals interactive energy.

In addition, for establishing more precise design methodology of nanoparticle dispersion process, we’re

collaborating with mathematicians. In the workshop, a prediction of re-dispersed particle size from

mathematical modeling will be illustrated.

The state of nanoparticle dispersion also affects the viscosity of fluid including nanoparticles (so called

‘nanofluid’). The characteristics of viscosity of nanofluid in shear stress field will be discussed.



46

Yi CHIU

Affiliation:Department of Electrical and Computer Engineering


Address:1001 Ta Hsueh Rd., Hsin Chu, Taiwan 300

1. Education

12/1996 Ph. D. (Electrical and Computer Engineering), Carnegie Mellon University, USA


8/2013 -

present

Department of Electrical and Computer Engineering, National Chiao Tung University

Professor

8/2007 -

7/2013

Department of Electrical and Computer Engineering, National Chiao Tung University

Associate Professor


• Energy harvesting

• vibration-based electrostatic and electret energy harvesters

• system integration of energy harvesters for wireless sensor modules

• Micro-electromechanical system (MEMS)

• MEMS fabrication and assembly technology

• CMOS-MEMS sensors and optical MEMS


• Excellent Design Award, Outstanding Chip Design Competition, Chip Implementation Center

(CIC), Taiwan, R.O.C., 2012 (with Prof. H.-C. Hong and Mr. P.-C. Wu)

• Outstanding Teaching Award, ECE College, NCTU, Taiwan, R.O.C., 2012

• Outstanding Mentoring Service Award, NCTU, Taiwan, R.O.C., 2008

• Taiwan Storage Research Award, Taiwan Information Storage Association, Taiwan, R.O.C., 2006

(with Prof. J.-C. Chiou)


1. “A three-axis single-proof-mass CMOS-MEMS piezoresistive accelerometer with frequency

output,” Y. Chiu, T.-C. Huang, and H.-C. Hong, Sensor Mater. 26(2), 95-108 (2014).

2. “Flexible electret energy harvesters with parylene electret on PDMS substrates,” Y. Chiu and S.-H.

Wu, J. Phys.: Conf. Ser., 476, 012037 (2013).

3. “Development and characterization of a CMOS-MEMS accelerometer with differential LC-tank

oscillators,” Y. Chiu, H.-C. Hong, and P.-C. Wu, J. Microelectromech. Syst.. 22(6), 1285-95

(2013).

4. “Flat and robust out-of-plane vibrational electret energy harvester,” Y. Chiu and Y.-C. Lee, J.

Micromech. Microeng., 23, 015012 (8 pp) (2013).

5. “Prism-type holographic optical element design and verification for the blue-light

small-form-factor optical pickup head,” H.-F. Shih, Y. Chiu, S. Cheng, Y.-C. Lee, C.-S. Lu, Y.-C.

Chen, and J.-C. Chiou, Appl. Opt. 51(24), 5758-66 (2012).


47

Development of Energy Harvesting Technology

Yi CHIU

Department of Electrical and Computer Engineering


1001 Ta Hsueh Rd., Hsin Chu, Taiwan, ROC

Phone: +886-3-5731838, Fax: +886-3-5715998


Abstract

This talk presents our efforts in the past years to develop various forms of energy harvesters. Energy

harvesting technology converts ambient energy resource into useful electricity for low-power electronics

applications. Vibrational energy harvesters are attractive for applications where constant vibration is present.

If the vibration has specific frequency and direction, such as those produced by factory machinery, resonant

structures can be developed for the harvesters to match the vibration characteristics to increase the power

conversion efficiency. Nevertheless, in situations such as human body movement, the motion is often random

in time and directions. Thus rigid and resonant harvesters can not be used. Instead, flexible harvesters with

non-resonant design must be developed for applications such as wearable electronics and implanted devices.

The theory and modeling of electrostatic energy harvesters are first reviewed. Silicon-based harvesters

fabricated by deep RIE in SOI substrates are discussed. Due to the brittle nature of silicon, we have

developed an electret-based harvester fabricated by using flexible printed circuit board (FPCB). Pulsed output

of 2.2 mW was delivered in an energy harvesting module in which the harvester was integrated with an

power management IC. I will also present a number of PDMS-based flexible energy harvesters that can be

attached to any curved surfaces to harvest the stain energy introduced by the deformed subject. Application of

the harvesters to human motion is demonstrated.


48

Daisuke Hojo

Affiliation:Advanced Institute for Materials Research (AIMR),

Tohoku University

Address: 2-1-1 Katahira, Aoba-ku, Sendai, Japan 980-8577

1. Education

1992-1996 :

College of Natural Sciences at First Cluster of Colleges of University of Tsukuba

Awarded the degree of BS for a thesis entitled

“The calculation of Lamb’s shift in hydrogen atoms using Relativistic Quantum Field Theory”

Work supervised by Professor Yang.

1996-1998 :

Master Program in Science and Engineering at University of Tsukuba

Awarded the degree of MS for a thesis entitled

“Basic research on scintillation tile/glass fiber system of hadron calorie meter for Japan Liner

Collider”

Work supervised by Professor Kim.

2000-2003 :

Doctoral Program in Engineering at University of Tsukuba

Awarded the degree of Ph. D. in Engineering for a thesis entitled

“The formation of atomic step/terrace structure on silicon surfaces and the quantitative roughness

evaluation of silicon surfaces”

Work supervised by Professor Yamabe.


2003-2005 :

AIST Research Fellow (Post-doc.) in Advanced Semiconductor Research Center,

National Institute of Advanced Industrial Science and Technology (AIST), Japan

Work supervised by Dr. Yasuda.

2005-2007 :

Research Fellow (Post-doc.) in Department of Chemical and Biomolecular Engineering at North

Carolina State University

Work supervised by Prof. Parsons.

2007-2008 :

Post-doc. in Institute of Multidisciplinary Research for Advanced Materials, Tohoku University


49

Work supervised by Prof. Adschiri.

2008-Present

Assistant Professor in Advanced Institute for Materials Research (AIMR), Tohoku University.


Nanostructure fabrication and functions


N/A


1. D. Hojo, T. Togashi, T. Ohsawa, M. Saito, Z. Wang, Y. Sakuda, S. Asahina, Y. Ikuhara, T. Hitosugi,

and T. Adschiri

“Nanoepitaxy of Anatase-type TiO2 on CeO2 Nanocubes Self-Assembled on a Si Substrate for

Fabricating Well-Aligned Nanoscale Heterogeneous Interfaces”

Cryst. Growth Des. Accepted.

2. A.-A. Litwinowicz, S. Takami, D. Hojo, N. Aoki, and T. Adschiri

“Hydrothermal Synthesis of Cerium Oxide Nanoassemblies through Coordination Programming with

Amino Acids”

Chem. Lett. 8, 1343 (2014).

3. M. Dejhosseini, T. Aida, M. Watanabe, S. Takami, D. Hojo, N. Aoki, T. Arita, A. Kishita, T.

Adschiri

“Catalytic Cracking Reaction of Heavy Oil in the Presence of Cerium Oxide Nanoparticles in

Supercritical Water”

Energy &Fuels 27, 4624 (2013).

4. *D. Hojo, T. Togashi, and T. Adschiri

“Self-Assembly and Reassembly phenomena of Organic-Inorganic Hybrid Nanocrystals in Highly

ordered Nanocrystalline Multi/Monolayer”

Jpn. J. Appl. Phys. STAP, 52, 110113 (2013).

5. *D. Hojo, T. Togashi, D. Iwasa, T. Arita, K. Minami, S. Takami, T. Adschiri.

“Fabrication of Two-dimensional Structures of Metal oxide Nanocrystals using Si substrate

Modified with 3,4-Dihydroxyhydrocinnamic Acid”

Chemistry of Materials 22, 1862 (2010)


50

Fabrication and Functionalization of Monolayer-controlled

Nanocrystalline Films

Daisuke Hojo and Tadafumi Adschiri

Advanced Institute for Materials Research (AIMR), Tohoku University

2-1-1 Katahira, Aoba-ku, Sendai, Japan 980-8577

Phone: +81-22-217-6323, Fax: +81-22-217-6323


URL: http://www.wpi-aimr.tohoku.ac.jp/ajiri_labo/

Abstract

Realizing the printed electronics where metal oxide nanocrystals (NCs) are incorporated has attracted

considerable attention recently. Generally, high crystalline metal oxide films are only obtained through high

temperature treatments. If the high crystalline metal oxide NCs are formed elsewhere at high temperature in

advance and those are aligned densely on the surface at room temperature, high crystalline film layer can be

fabricated even on a heat-sensitive substrate. In order to apply metal oxide NCs to the surfaces, three things

have to be considered at least. 1) Disperse the NCs in a solvent. 2) Self-assemble the NCs on the substrate

with drying the solvent. 3) Fix the NCs on the substrate. Among these processes, necessary interaction

between the metal oxide cores, modifiers, solvent, and the substrate is totally different. This could then lead

to a difficulty to apply NCs to the surface.

In this talk, dispersion of cerium oxide NCs and magnetites in solvent will be a first topic to be mentioned.

In order to disperse NCs, those were modified with fatty acid during synthesis of NCs to produce

organic-inorganic hybrid NCs. In certain medium, high-density of self-assembled monolayer of fatty acid

was formed on the surfaces of metal oxide core. This results in making high-concentrated fluids dissolving

NCs, over 50 wt% of NCs.

Then, rearrangement of hybrid NCs during solvent annealing is discussed after self-assembly of hybrid

NCs on the substrate at room temperature. Atomic force microscope observation revealed that after the

solvent anneal in tetrahydrofuran (THF) at 40-80°C for 5-15h, cerium oxide hybrid NCs adsorbed on the

substrate were rearranged to be more highly-ordered structures. Uniform and highly ordered nanocrystalline

multilayers were obtained after tetrahydrofuran annealing of pre-assembled hybrid NCs on the substrate

surfaces while due to low mobility of hybrid NCs in a solvent, arrangement of hybrid NCs had occurred

insufficiently during self-assembly with drying at room temperature. As a result of the rearrangement

process during solvent annealing, cerium oxide hybrid NCs were correctly positioned in the nanocrystalline

film layers because of high carrier ability and the high affinity of the solvent to the NCs. This

rearrangement of NCs to obtain high-ordered structures of hybrid NCs will be a key technology for precisely

controlled colloidal supralattice structures. However, when THF annealing applied to the hybrid NCs after

fixing on the substrate, where the chemical bonds were established between hybrid NCs and the substrate by

using local ligand exchange, no rearrangement occurred during solvent annealing. Solvent annealing had

almost no effect on the nanocrystalline monolayer macroscopically, indicating that hybrid NCs chemisorbed

on the modified substrate surface did not move freely as compared with hybrid NCs on top of the


51

pre-assembled hybrid NCs. Interaction between the hybrid NCs and the substrate is too strong to rearrange

those hybrid NCs in nanocrystalline monolayer.

A sufficiently highly ordered nanocrystalline monolayer was self-assembled in the concentrated solvent

and thus printed to such a sticky surface from a face-down configuration that prevented the random

deposition of hybrid NCs, resulting in the uniform and ordered nanocrystalline monolayer of macroscopic

size. To arrange hybrid NCs on such a “sticky” surface, pre-aligned hybrid NCs in the solvent should be

printed on the surface before random deposition taking place by using this face-down configuration.

In this talk, magnetooptic characterisitic of magnetite nanocrystalline monolayer will be also mentioned.


52

Dr. Hong-Cheu Lin

Chairman/Professor


Tel: 8863-5712121ext. 55305; Fax: 8863-5724727

E-mail: [email protected]

1. Education

1979-1983

B.S. Degree in Chemical Engineering, National Taiwan University

1985-1986

M.S. Degree in Chemical Engineering, Northwestern University

1986-1992

Ph.D. Degree in Materials Sci. & Eng., University of Illinois at Urbana-Champaign


3. Scientific Experience

1992-2000:

Assistant and Associate Research Fellow

Institute of Chemistry, Academia Sinica

2000-2005:

Associate Professor


2005-now:

Professor



5. Research Interests:

Liquid Crystal (LC) Materials, OLED and PLED Materials, Organic Solar Cell Materials,

Chemo- and Bio-Sensor Materials, Organic Electro-Optical Materials, Supramolecular

Materials and Nano-Composites.



53

Self-Assembly Applications of Supramolecular Complexes

and Nanocomposites

Hong-Cheu Lin (林宏洲), I-Hung Chiang, Chong-Lun Wei, Chien-Min Lin

Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu,

Taiwan

Abstract

Two series of supramolecular polymer complexes containing two triblock copolymer proton acceptors,

i.e., poly(4-vinylpyridine)-block-polystyrene-block-poly(4-vinylpyridine) (VSV) and

polystyrene-block-poly(4-vinylpyridine)-block-polystyrene (SVS), hydrogen-bonded with two generations of

mesogenic dendritic proton donors (G1 and G2) were prepared and investigated. Four supramolecular

polymer complexes (i.e., VSV-G1, VSV-G2, SVS-G1, and SVS-G2) confirmed the formation of a

microphase separated SmA structure corresponding to a head-to-head layered arrangement. The hierarchical morphologies of these supramolecular polymer complexes were proven not only by the patterns of SAXS but

also by directly visualized images of TEM. These results demonstrated the localized layered structure in

small domains corresponded to the smectic arrangement of dendrons and the characteristic structure in large

domains matched the volume fractions of the respective blocks. These hierarchical H-bonded structures can

be further utilized to construct functionalized self-assemblies.

G1 G2

Another series of hydrogen-bonded bent core liquid crystals containing

a bent-core pyridyl acceptor and four siloxane acid donors, i.e., S1-NBF14, POSS1-NBF14, C4-NBF14, and

POSS8-NBF14, were synthesized to study the influence of the structure of siloxane terminal group on the

mesogenic behavior. The liquid crystalline phases and mesomorphic behavior of all the compounds were

identified from the results of DSC, POM, electro-optical measurement and GISAXS. Thus, these

supramolecular systems may offer new applications of nanostructured polymers as templates to be combined

with their complementary dendritic mesogenic moieties. In addition, bent-core blue phase LCs will be

developed in this study.

References:

1) L. Y. Wang, S. Y. Tsai, and H. C. Lin, Macromolecules, 43, 1277 (2010).

2) W. H. Chen, W. T. Chuang, U. S. Jeng, H. S. Sheu, and H. C. Lin, J. Am. Chem. Soc., 133, 15674 (2011);

W. H. Chen, Y. T. Chang, J. J. Lee, W. T. Chuang, and H. C. Lin, Chem. Eur. J., 17, 13182 (2011).

3) I. H. Chiang, C. J. Long, H. C. Lin, W. T. Chuang, J. J. Lee, and H. C. Lin, ACS Appl. Mater. Inter., 6,

228 (2014).

_____________________________________________

* presenting author; E-mail: [email protected]

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54

Yasumasa NISHIURA

Affiliation:WPI Advanced Institute for Materials Research

(WPI-AIMR),

Tohoku University

Address: Katahira 2-1-1, Aoba-Ku, Sendai 980-8577, Japan

1. Education

1973 Bachelor of Science, Kyoto University

1975 Master of Science, Osaka University

1982 Doctor of Science, Kyoto University


1978-1982 Lecturer, Kyoto Sangyo University, Japan

1982-1989 Associate Professor, Kyoto Sangyo University, Japan

1989-1991 Associate Professor, Faculty of Science, Hiroshima University, Japan

1991-1995 Professor, Applied Mathematics, Faculty of Integrates Arts and Science, Hiroshima

University, Japan

2003-2005 Director, Research Institute for Electronic Science, Hokkaido University, Japan

1995-2012 Professor, Leader of Research Group for Nonlinear Studies and Computation,

Research Institute for Electronic Science, Hokkaido University, Japan

2012-present Professor, WPI-AIMR, Tohoku University, Japan


I am currently a leader of Math Unit and Interface Unit of WPI-AIMR from April 1st, 2012. The

mission of these units is to enhance and activate the fusion research catalytically among

experimentalists and theoreticians at AIMR as well as doing own research in an interactive way. The

three targets: Nonlinear and non-equilibrium materials, Topological materials, and Multi-scale and

hierarchical materials are the keys when the members of these units work together with

experimentalists. The interface group is in particular important and it is the driving force toward the

goal of AIMR. Each member of it does not belong to a specific laboratory and can choose the

appropriate topics based on him/her background, which are linked to at least one of the above three

targets.

I am coordinating the activities in accordance with their backgrounds and create the atmosphere in

which fusion research will be accelerated smoothly.


The 2002 MSJ Autumn Prize, The Mathematical Society of Japan (2002)

Lecturer for Distinguished Colloquium Series of IAM-PIMS-MITACS2007/08, The Institute of

Applied Mathematics (2008)

Prize for Science and Technology (Research Category), The Commendation for Science and

Technology by the Minister of Education, Culture, Sports, Science and Technology (2012)



55

1. Masaaki Yadome, Yasumasa Nishiura, and Takashi Teramoto : “Robust pulse generators in

an excitable medium with jump-type heterogeneity”, SIAM Journal on Applied Dynamical Systems, 13(3), 1168-1201(2014) DOI:10.1137/13091261X

2. Kei-Ichi Ueda, Masaaki Yadome and Yasumasa Nishiura : “Multistate network for loop

searching system with self-recovery property” , Physical Review E, 89(2), 022810 (2014) DOI:

10.1103/PhysRevE.89.022810

3. Yasumasa Nishiura, Takashi Teramoto and Masaaki Yadome : “Heterogeneity-Induced Pulse

Generators”, Advances in Cognitive Neurodynamics, Vol. III : 371-377 (2013)

DOI:10.1007/978-94-007-4792-0_50

4. Kei Nishi, Yasumasa Nishiura and Takashi Teramoto : “Dynamics of two interfaces in a hybrid

system with jump type heterogeneity”, Japan Journal of Industrial and Applied Mathematics, (2013)

DOI:10.1007/s13160-013-0100-x

5. Takeshi Watanabe, Makoto Iima and Yasumasa Nishiura : “Spontaneous formation of travelling

localized structures and their asymptotic behaviour in binary fluid convection”, Journal of Fluid

Mechanics, Vol.712, 219-243 (2012) DOI: 10.1017/jfm.2012.413

http://dx.doi.org/10.1137/13091261X


56

Wen-Wei Lin

Dept. of Appl. Math., National Chiao Tung Univ.

1001 University Rd. Hsinchu, 30010 Taiwan

1. Education

Ph.D., University of Bielefeld, Germany, 1985 (Appl. Math., Numer. Anal.).


(Times New Roman, 10pt)


–Numerical Analysis, Matrix Computations, Optimal Control,

–Chaotic Dynamical System, Parallel Computations, Matrix Theory.


– Outstanding Research Award, 1994–1995, National Science Council.

– Distinguished Research Award, 1999, Sun Yat-sen Academic Foundation.

– Outstanding Research Award, 2002–2004, National Science Council.

– Academic Award from Ministry of Education, 2004.

– Chair Professor of Tsing Hua University, (2005–2008).

– National Chairship Professor, (2007–2009).

– Chair Professor of Chiao Tung University, (2008–2010).

– Distinguished Professor of Taiwan University, (2010–2011).

– Chair Professor of Chiao Tung University, (2012–present).

5. Editorial Work :

– Associate Editor of SIAM Journal on Matrix Analysis and Applications (SIMAX), 2013~.

– Associate Editor of Communications in Information and Systems, (2014–present).

– Associate Editor of Electronic Transactions on Numerical Analysis, (2014–present).


57

Musou Band無雙樂團

Performance at


台日東北大交大元件、材料與數學跨領域國際研討會

Place: 10F Ambassador Hotel, Hsinchu City

新竹國賓飯店 10F

Time: 6:30 – 7:00 PM, Sep. 23, 2014

無双樂團 Official Youtube link：

https://www.youtube.com/channel/UC1EEHgSS_AQ2Oz07mxDUENg


58

無双樂團曲目 (Program)

CD 順序曲名 (Song title) 時間

(Time duration)

01 夜來香 (Tuberose) 3:17

02 閉月 (Veiled moon) 3:59

03 我只在乎你 (時の流れに身をまかせ) 4:16

04 鄧雨賢組曲 (雨夜花+望春風+四季紅) 5:16

05 國色 (Stunning Beauty) 3:54

06 大手拉小手（幻化成风） 4:11

07 北國之春（北国の春） 3:54

08 鳳陽花鼓(お祝いの歌) 3:18

台日東北大 交大元件、材料、與數學跨領域國際研討會 -...

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台日東北大交大元件、材料、與數學跨領域國際研討會 -...