Anisotropic reflectivity of rubbed polyimide liquid crystal alignment layer

被引：0
|
作者：
Zheng, Wenjun [1 ]
机构：
[1] Natl Sun Yat Sen Univ, Dept Photon, Kaohsiung 80424, Taiwan
来源：
ADVANCES IN LIQUID CRYSTALS | 2010年 / 428-429卷
关键词：
Reflection anisotropy spectroscopy; Rubbed polyimide; Liquid crystal alignment; Pretilt angle; PRETILT ANGLE; MOLECULAR-ORIENTATION; SPECTROSCOPY; FILMS; SURFACES;
D O I：
10.4028/www.scientific.net/KEM.428-429.309
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The surface optical anisotropy of rubbed polyimide films has been detected using reflection anisotropy spectroscopy. The amplitude of the reflection anisotropy signals increases with the rubbing strength. Rubbing also causes changes in pretilt angle of liquid crystal molecules which are in contact with the rubbed polyimide. An increase in rubbing strength results in an increase in the pretilt angel. The pretilt of the liquid crystal molecules was found to linearly correlate with the amplitude of the RA signals.
引用
收藏
页码：309 / 316
页数：8
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