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Reversible Reflection Color‐Control in Smectic Liquid Crystal Switched by Photo‐Isomerization of Azobenzene
Author(s) -
Guan Jingjing,
Zhang Mingzhi,
Gao Wei,
Yang Huai,
Wang Guojie
Publication year - 2012
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201200054
Subject(s) - azobenzene , photochromism , isomerization , photochemistry , reflection (computer programming) , liquid crystal , materials science , photoisomerization , azo compound , irradiation , chemistry , optics , optoelectronics , molecule , organic chemistry , polymer , catalysis , physics , nuclear physics , programming language , computer science , composite material
Through the looking glass: A reflection color transition is demonstrated in a smectic liquid crystal doped with a photochromic azobenzene and a chiral agent with high helical twisting power. The reflection color can be switched reversibly due to the isomerization of azobenzene upon UV/visible irradiation (see picture).