Light-induced director reorientation in nematic liquid crystals doped with azobenzene-containing macromolecules of different architecture

被引：28
|
作者：
Zolot'ko, A. S. [1 ]
Budagovsky, I. A. [1 ]
Ochkin, V. N. [1 ]
Smayev, M. P. [1 ]
Bobrovsky, A. Yu. [2 ]
Shibaev, V. P. [2 ]
Boiko, N. I. [2 ]
Lysachkov, A. I. [2 ]
Barnik, M. I. [3 ]
机构：
[1] PN Lebedev Phys Inst, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow, Russia
[3] AV Shubnikov Crystallog Inst, Moscow 117333, Russia
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2008年 / 488卷
关键词：
dendrimers; dyes; nematic liquid crystals; optical nonlinearity; polymers;
D O I：
10.1080/15421400802241126
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The results of the studies of the orientational optical nonlinearity of a nematic host doped with high-molar-mass compounds of different molecular architecture such as a comb-like polymer and a dendrimer containing azobenzene chromophores are presented. The nonlinearity induced by these compounds was found to be higher than that induced by the low-molar-mass dyes similar in structure to the light-absorbing constituents of the polymer and dendrimer. Possible reasons for the nonlinearity enhancement for macromolecular dopants are discussed.
引用
收藏
页码：265 / 278
页数：14
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