Doping effect on the photo-pyroelectric properties of ferroelectric liquid crystals

被引：0

作者：

Yu, CJ ^{[1
]}

Lee, JH ^{[1
]}

Kim, JH ^{[1
]}

Lee, SD ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Elect Engn, Seoul 151742, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 1998年 / 32卷

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied the doping effect on the photo-pyroelectricity of ferroelectric liquid crystals (FLCs) with nonlinear optical chromophores. For a FLC mixture of SCE 13 doped with 4-dimethylamino-4 nitro stilbenes (DANS), it is found that the paraelectric-ferroelectric (PA-FE) phase transition temperature, T-c, becomes lower with increasing the concentration of DANS: Under. a de bias electric field, the enhancement of the pyroelectricity in the PA phase (above T-c) of the doped SCE 13 is much larger than that in the FE one. The doped FLCs are expected to be useful for thermal detection and imaging applications.

引用

页码：S1066 / S1068

页数：3

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