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Light-controllable reflection wavelength of blue phase liquid crystals doped with azobenzene-dimers
Xingwu Chen1, Ling Wang, Chenyue Li
1Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, P. R. China. yanghuai@mater.ustb.edu.cn hewanli@mater.ustb.edu.cn.
Chemical Communications (Cambridge, England)
|September 19, 2013
Abstract:
A new series of azobenzene-dimers were synthesized and doped into the blue phase liquid crystals to broaden the temperature range of BPs. It is found that not only can the reflection wavelength of BPI be reversibly controlled but BPI can also be transformed into the cholesteric phase owing to isomerization of azobenzene induced by light.
