Frequency modulation response of a liquid-crystal electro-optic device doped with nanoparticles

被引：225

作者：

Shiraishi, Y

Toshima, N

Maeda, K

Yoshikawa, H

Xu, J

Kobayashi, S ^{[1
]}

机构：

[1] Tokyo Univ Sci, Inst Liquid Crystal, Onoda, Yamaguchi 7560884, Japan

[2] Tokyo Univ Sci, Dept Elect & Comp Sci, Onoda, Yamaguchi 7560884, Japan

[3] Tokyo Univ Sci, Dept Mat Sci & Environm Engn, Onoda, Yamaguchi 7560884, Japan

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 15期

关键词：

D O I：

10.1063/1.1511282

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Palladium nanoparticles covered with liquid-crystal molecules were prepared by UV irradiation of an alcohol solution of palladium(II) acetate in the presence of liquid-crystal molecules. The prepared Pd nanoparticles have an average diameter of 2.5 nm. A twisted nematic (TN) liquid-crystal device (LCD) was fabricated by doping with Pd nanoparticles covered with another kind of nematic liquid-crystal molecules. In this device the sign of the dielectric anisotropy (Deltaepsilon) of the liquid-crystal molecules, which cover Pd nanoparticles, is opposite to that of nematic liquid-crystal molecules, which work as the host of the device (Deltaepsilon>0). The TN-LCD cell fabricated in this research exhibits a frequency modulation response to an applied alternative voltage wave form. (C) 2002 American Institute of Physics.

引用

页码：2845 / 2847

页数：3

共 24 条

[1]

Bradley J. S., 1994, CLUSTERS COLLOIDS TH, V456

[2] DEFORMATION PATTERN OF TWISTED NEMATIC LIQUID-CRYSTAL LAYERS IN AN ELECTRIC-FIELD [J].