Evaluation of liquid crystal molecules on polyimide LB films using attenuated total reflection measurement

被引：9

作者：

Baba, A

Kaneko, F

Shinbo, K

Kato, K

Kobayashi, S

机构：

[1] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[2] Niigata Univ, Dept Elect & Elect Engn, Niigata 9502181, Japan

[3] Niigata Univ, Dept Mat Sci & Technol, Niigata 9502181, Japan

来源：

THIN SOLID FILMS | 1998年 / 327卷

关键词：

attenuated total reflection; nematic liquid crystal; tilt angle; surface plasmon polariton; guided wave excitation mode; polyimide Langmuir-Blodgett film;

D O I：

10.1016/S0040-6090(98)00668-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tilt angles of nematic liquid crystal molecules, 5CB, have been investigated in cells with rubbing-free aligning layers of polyimide Langmuir-Blodgett (LB) films on the aluminum electrodes using the attenuated total reflection (ATR) measurement. The ATR properties were evaluated from the surface plasmon polariton and the guided wave excitation modes when various DC voltages were applied to the cell. The tilt angles near the aligning layers of the polyimide (PI) LB films and in the middle layer of the cell were calculated by fitting the theoretical ATR curves to the experimental ones. This technique is very useful for evaluating aligning properties of liquid crystal molecules on LB films in the cells. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：353 / 356

页数：4

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