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Self-Patterned Molecular Photoswitching in Nanoscale Surface Assemblies
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DOI：10.1021/nl802632g.png)
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Abstract
En 中文
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-terf-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 similar to 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.
Keywords:
SCANNING-TUNNELING-MICROSCOPY
THERMAL-ACTIVATION
LIGHT
AZOBENZENE
PHOTOEMISSION
STABILITY
MOTION
GOLD
Journal
IF:
9.1
Papers:
2.7W
Citations:
16.5W
