seeing atoms & molecules cosmos 2008 wilson ho university of california, irvine

Seeing Atoms & Molecules

COSMOS 2008

Wilson HoUniversity of California, Irvine

50,000,000 x Magnification Stock Metals Silver Atoms

Silicon(111)

The Virtue of Being Single: A Molecular View

50,000,000x Magnification

Galileo, 1992 Reines Hall3,900,000 Miles UC Irvine

Galileo

Apollo 16 – North America

Los Angeles Basin

Newport Beach - Irvine

Home of the Anteaters

Reines Hall - UCI

Tunneling Phenomenon

STM Tip

Tornado: Miami, Texas, May 29, 1994

Quantum Tunneling of Electrons

Tunneling Microscopy

Vacuum Tunneling

Topography

Silicon(111)

Principles of Modern Chemistry, 6th edition, Oxtoby, Gillis, and Campion (Thomson Brooks/Cole, 2007).

Houghton-Mufflin Science, California Edition (2007).

Single H Atom

H Atom on Cu(001)

Random Walk of Single H Atom

Single Atom Tracking

Single H Diffusion

Acknowledgment

Past Present Jennifer Gaudioso Xi Chen Jae Ryang Hahn Ungdon Ham Lincoln Lauhon Hyojune Lee Niklas Nilius Joon Hee Lee Xiaohui Qiu Ning Liu Mohammad Rezaei Gary Mikaelian Barry Stipe George Nazin Mitch Wallis Nilay Pradhan

Christophe Silien Xiuwen Tu

Shiwei Wu Shiwu Gao Mats Persson Nicolas Lorente

Self-Cleaning Lotus Plant

The Lotus Effect

Rough Surface Smooth Surface

Wilhelm Barthlott Paint & Roof Tiles

Lotusan Paint Regular Paint

STM Apparatus

Scanning Tunneling Microscope

STM in Vacuum

Manipulation Mechanism

Pd20 Chain

Seeing LUMO of Mg-Porphine

(Mukamel) (Ho)

“Seeing is Believing”

A Still Photo

Gold Chains Under Construction

Gold Chains: 1 to 20 Atoms

2-D Box: Standing Waves

2-D Box: Standing Waves