Study of the photocurrent in liquid crystal cells exhibiting the photorefractive effect

被引：0
|
作者：
I. A. Budagovsky
A. S. Zolot’ko
A. N. Lobanov
M. P. Smayev
A. M. Tskhovrebov
A. S. Averyushkin
M. I. Barnik
机构：
[1] Russian Academy of Sciences,Shubnikov Institute of Crystallography
来源：
Bulletin of the Lebedev Physics Institute | 2010年 / 37卷
关键词：
NLC; photorefractive effect; photocurrent;
D O I：
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学科分类号：
摘要：
Photocurrents in liquid crystal cells of different structures were experimentally studied. The results of the study confirm the photorefractive mechanism of the light beam self-action in nematic liquid crystals, which consists in a decrease in the density of surface charges screening an external electric field upon light exposure. The data obtained from photoelectric and optical measurements suggest that the photorefractive effect appears in cells with different orientants and in the absence of orientant. In a planar cell oriented by rubbed polyimide, the crucial role is played by the interface between the liquid crystal and polyimide deposited on the anode.
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页码：49 / 55
页数：6
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