Self-patterned molecular photoswitching in nanoscale surface assemblies

Niv Levy; Matthew J. Comstock; Jongweon Cho; Luis Berbil-Bautista; Armen Kirakosian; Frank Lauterwasser; Daniel A. Poulsen; Jean M.J. Fréchet; Michael F. Crommie

doi:10.1021/nl802632g

Self-patterned molecular photoswitching in nanoscale surface assemblies

Niv Levy, Matthew J. Comstock, Jongweon Cho, Luis Berbil-Bautista, Armen Kirakosian, Frank Lauterwasser, Daniel A. Poulsen, Jean M.J. Fréchet, Michael F. Crommie

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Photomechanical switching (photoisomerization) of molecules at a surface is found to strongly depend on molecule-molecule interactions and molecule-surface orientation. Scanning tunneling microscopy was used to image photoswitching behavior in the single-molecule limit of tetra-iert-butyl-azobenzene molecules adsorbed onto Au(111) at 30 K. Photoswitching behavior varied strongly with surface molecular island structure, and self-patterned stripes of switching and nonswitching regions were observed having ∼10 nm pitch. These findings can be summarized into photoswitching selection rules that highlight the important role played by a molecule's nanoscale environment in determining its switching properties.

Original language	English (US)
Pages (from-to)	935-939
Number of pages	5
Journal	Nano Letters
Volume	9
Issue number	3
DOIs	https://doi.org/10.1021/nl802632g
State	Published - Mar 11 2009
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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title = "Self-patterned molecular photoswitching in nanoscale surface assemblies",

abstract = "Photomechanical switching (photoisomerization) of molecules at a surface is found to strongly depend on molecule-molecule interactions and molecule-surface orientation. Scanning tunneling microscopy was used to image photoswitching behavior in the single-molecule limit of tetra-iert-butyl-azobenzene molecules adsorbed onto Au(111) at 30 K. Photoswitching behavior varied strongly with surface molecular island structure, and self-patterned stripes of switching and nonswitching regions were observed having ∼10 nm pitch. These findings can be summarized into photoswitching selection rules that highlight the important role played by a molecule's nanoscale environment in determining its switching properties.",

author = "Niv Levy and Comstock, {Matthew J.} and Jongweon Cho and Luis Berbil-Bautista and Armen Kirakosian and Frank Lauterwasser and Poulsen, {Daniel A.} and Fr{\'e}chet, {Jean M.J.} and Crommie, {Michael F.}",

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T1 - Self-patterned molecular photoswitching in nanoscale surface assemblies

AU - Levy, Niv

AU - Comstock, Matthew J.

AU - Cho, Jongweon

AU - Berbil-Bautista, Luis

AU - Kirakosian, Armen

AU - Lauterwasser, Frank

AU - Poulsen, Daniel A.

AU - Fréchet, Jean M.J.

AU - Crommie, Michael F.

PY - 2009/3/11

Y1 - 2009/3/11

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AB - Photomechanical switching (photoisomerization) of molecules at a surface is found to strongly depend on molecule-molecule interactions and molecule-surface orientation. Scanning tunneling microscopy was used to image photoswitching behavior in the single-molecule limit of tetra-iert-butyl-azobenzene molecules adsorbed onto Au(111) at 30 K. Photoswitching behavior varied strongly with surface molecular island structure, and self-patterned stripes of switching and nonswitching regions were observed having ∼10 nm pitch. These findings can be summarized into photoswitching selection rules that highlight the important role played by a molecule's nanoscale environment in determining its switching properties.

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Self-patterned molecular photoswitching in nanoscale surface assemblies

Abstract

ASJC Scopus subject areas

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