RTD Activities in Organic Solar Cells in Crete

RTD activities in Organic Solar Cells in Crete

FORTH – IESL

ULMNP LAB

NANO LAB

TEIC

E. Kymakis E. Stratakis

I E S L - F O R T H

in collaboration with E. Kymakis (TEIC)

Cross sectional X-ray and fluorescence

Organic solar cells blended with laser –synthesized nanoparticles and nanocomposites

Laser synthesized Graphene-based TCOs

Investigation of degradation stability via Laser induced fluorescence (LIF) complemented by

Energy Dispersion X-ray measurements

Laser synthesis of GO electron acceptors

ULMNP LAB: Application of lasers in OPVs

OPV materials Synthesis OPV materials Diagnostics

ULMNP LAB: Laser processing of 2D materials for OE

in collaboration with E. Kymakis (TEIC), T. D. Anthopoulos (ICL)

Adv. Func. Mater. (2013) / Nanoscale (2013) /Appl. Phys. Lett (2013)/IEEE JSTQE (2014)

In-situ fs laser doping for FETs

Laser interaction with monolayers

Monolayers

Bulk

Bulk

Photochemical Synthesis Photodoping

Nano Group TEI OF CRETE

0,0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0 ,8

14

12

10

8

6

4

2

0

Cur

rent

Den

sity

(mA/

cm2 )

V (Voltage)

PEDOT:PSS

GO (4.9 eV)

GO-Cl (5.04 eV)

GO-Cl (5.11 eV)

GO-Cl (5.17eV)

GO-Cl (5.23eV)

People

Characterization Synthesis

Formulate

Process

Organic Photovoltaics

Flexible electronics

Fabricate

Test

Research activities of the Nano Group at TEIC in OPVs

Replacement of electrode and interfacial layers with SPG materials, compatible with 2r2

Solution processable graphene

Metallic nanostructures enable light manipulation at the nanoscale. Photonic and plasmonic enhancement of photocurrent

Plasmonics

Novel materials

Photon Management

Device Engineering

Tandem device to enhance light harvesting; Optimize electron/hole transport

Tandem, organic-inorganic hybrids etc.

Enhancing OPV Performance and Stability through Integrated Material, Interfacial, and Device Engineering

in collaboration with E. Stratakis (ULMNP-FORTH)

Performance and Stability of Plasmonic Organic

Photovoltaics 1

Graphene-based materials for Organic Electronic

applications 2

Research ULMNP(IESL-FORTH) + Nano (TEIC)

Small (2014) / Chem. Comm. (2014)/ Adv. Mat. (2013), Adv. Funct. Mat. (2013)/ Materials Today (2013) Nanoscale (2013)/ Carbon (2013) / RSC Advances (2013)/ PCCP (2013)/ Nanoscale

(2012) / Adv. Funct. Mat. (2011)

Polymer blends with ligand-free laser synthesized nanostructures

1. Nanoparticle-based plasmonic organic photovoltaics

PCDTBT:PC71BM:NPs

P3HT:PCBM:NPs

0 20 40 60 80 100 120 1400

20

40

60

80

100

p3ht : pcbm

p3ht : pcbm : Au NPs 5%

p3ht : pcbm : Al NPs 9%

Pe

rce

nta

nce

of

initi

al E

ffic

ien

cy (

%)

Illumination time (hours)

Combining Plasmonics with Graphene: GO-Au HTLs

Al-Au NPs for enhanced performance

Cross-sectional X-ray diffraction +

fluorescence imaging of plasmonic OPVs

Plasmonic organic photovoltaics: Diagnostics

Fluorescence pattern

Energy dispersion X-ray pattern

13

TCE: Expensive ITO Carbon based materials

HTL: Hygroscopic PEDOT Metal oxides, graphene oxide

Polymer donors PTB7,PCDTBT,P3HT

Acceptors PCBM, ICBA

2. Solution processed Graphene in OPVs

Functionalized graphene

flakes for enhanced

photogeneration & charge

transport

Laser reduced

graphene

Doped Graphene oxide

Liquid Phase Exfoliation

(graphene & graphene oxide)

OPV with flexible

LrGO TCE

5 10 15 20 25 300

3

6

9

12

15

18

RSH

Tra

nsm

ittan

ce

(%)

Sh

ee

t R

esis

tan

ce

(k

/sq

)

Thickness (nm)

P=5.5 mW

30

40

50

60

70

80

90

TR

Graphene replacing ITO in flexible OPVs

0 10 20 30 40 50 60

4.9

5.0

5.1

5.2

Wor

k fu

nctio

n (e

V)

Exposure, Np

Work Function

Tuning !!!

UV Laser

Cl2 gas

Photochemical doping of GO from gas phase

! HTLs with

tunable WF !

Cl-doping: p-

type

N-doping: n-

type

! ETLs with tunable WF !

GO GO-Li

ETL Jsc(mA/cm2) Voc(mV) FF(%) PCE(%)

TiOx 11.28 878 55.6 5.51

GO/TiOx 10.73 883 51.6 4.89

GO-Li/TiOx 12.51 890 56.5 6.29

Laser Fabricated rGO Micromesh Flexible TCEs

Photochemical Synthesis of Graphene Derivatives

Publications ULMNP-Nano (2013 - 2015)

2013

1. Kymakis E., Savva K., Stylianakis M.M., Fotakis, C.,Stratakis EAdvanced Functional Materials, 23, 2742-2749 2. Petridis C. , Savva K. , Lin Y. , Eda G. , Kymakis E., Anthopoulos T.D., Stratakis E., Applied Physics

Letters, 102, 093115 3. Stratakis E., Stylianakis M., Koudoumas E., Kymakis E., Nanoscale, 5 (10), 4144-4150 4. Beliatis M.,Henley S., Han S., Gandhi K., Adikaari D., Stratakis E., Kymakis E., Silva S. R. Physical

Chemistry Chemical Physics, 15, 8237-8244 5. Stratakis E., Kymakis E., Materials Today, 16 (4), 133-146. 6. Kakavelakis G., Stratakis E., Kymakis E., RSC Advances, 3 (37), 16288-16291 7. Paci B., Bailo D., Albertini V., Wright J., Ferrero C., Spyropoulos G.D., Stratakis E.,Kymakis, E.,, Advanced Materials, 25(34), 4760–4765.

2014

1. Kymakis E., Petridis C., Anthopoulos T.D., Stratakis E. , IEEE Journal of Selected Topics in

Quantum Electronics, 20 (1) , art. no. 6573325 2. Viskadouros G., Stylianakis M.M., Kymakis E., Stratakis E., ACS Applied Materials & Interfaces, 6(1), pp 388–393 3. Viskadouros, G., Zak A., Stylianakis, M.M., Kymakis, E, Tenne, R., Stratakis, E., Small, 10, 2398-2403 4. Kakavelakis G., Stratakis E., Kymakis E. Chemical Communications, 50 (40), 5285 – 5287 5. Savva K., Lin A.Y-H., Petridisc C., Kymakis E., Anthopoulos T.H., Stratakis E., Journal of Materials

Chemistry C, 2, 5931-5937 6. Konios D., Stylianakis M.M., Stratakis E., Kymakis E., Journal of Colloid And Interface

Science (2014), 430, 108-112 7. Paradisanos I., Kymakis E., Fotakis C., Kioseoglou G., Stratakis E., Applied Physics Letters (2014), 105, 041108. 8. Stratakis E., Savva K., Konios D., Petridis C., Kymakis E., Nanoscale, 6, 6925-6931 9. Pattanasattayavong P.,Sygletou M., Kymakis E., Stratakis E.,Yan F.,Gregoriou V.G., Anthopoulos T.H., Chochos C.L., RSC Advances, 4 (102), 58404-58411.

10. Kakavelakis G., Konios D., Stratakis E., Kymakis E., Chemistry of Materials, 26 (20), 5988–5993 11. Viskadouros, G., Konios D., Kymakis, E, Stratakis, E., Applied Physics Letters, 105, 203104

2015

1. Stylianakis M.M., Sygletou M., Savva K., Kakavelakis G., Kymakis E., Stratakis E., Advanced Optical

Materials , DOI: 10.1002/adom.201400450

2.Konios D., Petridis C.,Kakavelakis G.,., Sygletou M., Savva K., Stratakis E., Kymakis E., Advanced Optical Materials DOI: 10.1002/adom.201400450

3. Bonaccorso F., Balis N., Stylianakis M.M., Savarese M., Adamo C., Gemmi M., Pellegrini V., Stratakis E., Kymakis E. Advanced Functional Materials, DOI: 10.1002/adfm.201501052

4. Kymakis E., Spyropoulos G.D., Fernandes R., Kakavelakis G., Kanaras A.G., Stratakis E., ACS Photonics, DOI: 10.1021/acsphotonics.5b00202

Objective

The main objective of the Life Long Learning (LLP) Erasmus

Project “Organic Electronics & Applications” – OREA is the

development of a MSc curriculum in the field of Organic

Electronics. In this project there is synergy between Universities,

Research Institutions and Enterprises

Erasmus LLP Organic Electronics & Applications - OREA

Funding / Support

Graphene Flagship, EU

ΚΡΗΠΙΣ ΠΡΟΕΝΥΛ, ΓΓΕΤ

ERASMUS, LLP, OREA

CΟST MP1307, StableNextSol

FORTH - IESL

Ultrafast Laser Micro/Nano Processing Group

Emmanuel Stratakis

e-mail: stratak@iesl.forth.gr

http://www.iesl.forth.gr/research/activity.aspx?id=29

TEIC - CEMATEP

Nanomaterials & Organic Electronics Group

Emmanuel Kymakis

e-mail: kymakis@staff.teicrete.gr

http://nano.teicrete.gr/

THANK YOU FOR YOUR ATTENTION !