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Predicting photoisomerization profile of the highly polymerized nematic azobenzene liquid crystal network: First principle calculation

Title
Predicting photoisomerization profile of the highly polymerized nematic azobenzene liquid crystal network: First principle calculation
Author
최준명
Keywords
CIS PHOTOISOMERIZATION; DYNAMICS; LIGHT; ACTUATORS; MECHANISM; QUANTUM; STATES; RANGE; TRANS; FILM
Issue Date
2015-05
Publisher
ELSEVIER SCIENCE BV
Citation
CHEMICAL PHYSICS LETTERS, v. 627, Page. 20-25
Abstract
The cis profile of azobenzene is a key factor in predicting the photodeformation of the nematic azobenzene liquid crystal network (LCN). An ab initio based method for predicting the photoisomerization profile of azobenzene is developed by coupling the stimulated Raman adiabatic passage (STIRAP) method with nonlinear Beers law, and compared with experimental data. Using this combined method, we calculate the photoisomerization profile of azobenzene with various light input conditions. We identify the cis profile of the nematic LCN structure evolves into a step-like decaying shape when the direction of polarized light is parallel to the nematic direction. (C) 2015 Published by Elsevier B.V.
URI
https://www.sciencedirect.com/science/article/pii/S0009261415001657https://repository.hanyang.ac.kr/handle/20.500.11754/105989
ISSN
0009-2614; 1873-4448
DOI
10.1016/j.cplett.2015.03.012
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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