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Communication: Time-resolved fluorescence of highly single crystalline molecular wires of azobenzene

Title
Communication: Time-resolved fluorescence of highly single crystalline molecular wires of azobenzene
Authors
Jee A.-Y.Lee Y.Lee M.Kim M.H.
Ewha Authors
이민영김명화
SCOPUS Author ID
이민영scopus; 김명화scopus
Issue Date
2012
Journal Title
Journal of Chemical Physics
ISSN
0021-9606JCR Link
Citation
vol. 136, no. 12
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We report the enhanced fluorescence with the remarkably long lifetime (1.17 ns) in the first excited state (S 1) of highly crystalline molecular wires of azobenzene at the excitation wavelength of 467 nm for the first time. This observation suggests that trans-cis photoisomerization through the rotation or inversion mechanism may not be a favorable pathway after excitation to the S 1 state in highly single crystalline molecular wires of azobenzene due to the hindered motion within densely packed crystal structure. We also measured the fluorescence lifetime image of a single crystalline molecular wire of azobenzene, indicating that the lifetime was remarkably uniform and that there was only a very minor variation within the crystal. © 2012 American Institute of Physics.
DOI
10.1063/1.3701733
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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