Weak anchoring of nematic liquid crystals on photo-induced surface relief gratings of organic polysilane

被引：7
|
作者：
Nanba, Tohru [1 ]
Naito, Hiroyoshi [1 ,2 ]
Matsukawa, Kimihiro [3 ]
Sugimura, Akihiko [4 ]
机构：
[1] Osaka Prefecture Univ, Dept Phys & Elect, Osaka 5998531, Japan
[2] Osaka Prefecture Univ, Res Inst Mol Elect Devices, Osaka 5998531, Japan
[3] Osaka Municipal Tech Res Inst, Elect Mat Dept, Osaka 5368553, Japan
[4] Osaka Sangyo Univ, High Technol Res Ctr, Osaka 5740013, Japan
来源：
THIN SOLID FILMS | 2009年 / 518卷 / 02期
基金：
日本学术振兴会;
关键词：
Nematic liquid crystal; Anchoring energy; Surface relief grating; Au; Organic polysilane; ALIGNMENT; ENERGY; CELL;
D O I：
10.1016/j.tsf.2009.07.117
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Surface relief gratings on organic polysilane thin films are fabricated by holographic exposure of ultra-violet light, and Au gratings are subsequently prepared on polysilane gratings by vapor deposition of Au The. anchoring energies of 4-pentyl-4'-cyanobiphenyl (5CB) nematic liquid crystal on the fabricated gratings are determined with a saturation voltage method. The anchoring energies of Au gratings are weaker than those of organic polysilane gratings because of suppression of pi-pi interaction between the liquid crystal and the alignment layer. The polar anchoring energies of Au gratings are also weaker than those reported in literature. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：767 / 770
页数：4
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