Fourier transform infrared spectroscopic investigation of the electric-field-induced reorientation of the nematic 7CPB with different prealignment

被引：4
|
作者：
Klimov, E [1 ]
Siesler, HW [1 ]
机构：
[1] Univ Duisburg Essen, Dept Phys Chem, D-45127 Essen, Germany
来源：
APPLIED SPECTROSCOPY | 2004年 / 58卷 / 08期
关键词：
time-resolved Fourier transform infrared spectroscopy; nematic liquid crystal; electric-field-induced reorientation; bulk and surface region; initial orientation;
D O I：
10.1366/0003702041655313
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Time-resolved Fourier transform infrared (FT-IR) polarization spectroscopy was employed to study the electric-field-induced re-orientation of nematic p-eyanophenyi-p-n-heptylbenzoate (7CPB) in the bulk of the cell and near (within 1 mum) the surface of the electrodes. The initial orientation of 7CPB on the germanium electrodes was varied in order to obtain information concerning the behavior of the liquid crystalline molecules in the boundary region. Model systems containing the 7CPB on,rubbed polyimide and poly(vinyl alcohol), non-rubbed polyimide and poly(vinyl alcohol), and blank germanium were prepared and investigated.
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页码：952 / 957
页数：6
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