Conformational molecular switch of the azobenzene molecule: a scanning tunneling microscopy study.

Citation data:

Physical review letters, ISSN: 0031-9007, Vol: 96, Issue: 15, Page: 156106

Publication Year:
2006
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Repository URL:
http://scholarworks.unist.ac.kr/handle/201301/7113
PMID:
16712175
DOI:
10.1103/physrevlett.96.156106
Author(s):
Choi, Byoung-Young; Kahng, Se-Jong; Kim, Seungchul; Kim, Hajin; Kim, Hyo Won; Song, Young Jae; Ihm, Jisoon; Kuk, Young
Publisher(s):
American Physical Society (APS); AMERICAN PHYSICAL SOC
Tags:
Physics and Astronomy; CIS-TRANS ISOMERIZATION; PHOTOISOMERIZATION DYNAMICS; STATE; ELECTRONICS; EXCITATION; MECHANISM
article description
We propose to utilize azobenzene as a nanomolecular switch which can be triggered by transmitting electrons above threshold biases. The effect is explained by an electron impact trans-cis conformational change of the isolated azobenzene molecules. The molecular electronic states of both isomers have been measured with spatially resolved scanning tunneling microscopy or spectroscopy, leading to suggested transition pathways of the electron-induced isomerization.