Effects of gamma radiation on the dielectric and electro-optical properties of a polymer-dispersed liquid crystal

被引：13
|
作者：
Sharma, Suresh C. [1 ]
Ramsey, Robert A. [1 ]
机构：
[1] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA
来源：
PHYSICA B-CONDENSED MATTER | 2010年 / 405卷 / 02期
关键词：
Polymer-dispersed liquid crystal; Liquid crystal; Polymer; REORIENTATION DYNAMICS; LIGHT-SCATTERING; TRANSMISSION; METHACRYLATE; DEFORMATION; FILMS;
D O I：
10.1016/j.physb.2009.09.008
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have investigated the effects of electric field and gamma radiation on the permittivity of a liquid crystal (E8), polymer-matrix (C135) and their composite polymer-dispersed liquid crystal (PDLC). The permittivity data are analyzed in terms of the Debye model, which provides insight into the effects of radiation-induced charges on the relaxation time constants. The effect of gamma-ray dose on the electro-optical response of the PDLC is studied by modeling PDLC as a composite material consisting of either isolated or interconnected liquid-crystal droplets embedded in a polymer matrix. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：499 / 506
页数：8
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