Author Affiliations
Abstract
1 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033
2 Graduate University of Chinese Academy of Sciences, Beijing 100049
In order to study the effect of mixing dye in ferroelectric liquid crystal (FLC) materials, the phase transition temperature and electro-optical properties of azo dye doped FLC samples have been investigated. All the properties have been found to be changed drastically. The results have revealed that not only the SmC*-SmA* transition temperature decreased markedly by the addition of azo-dye, but also dye-doped FLC had lower threshold voltage and saturation voltage than the pure FLC.
铁电液晶 偶氮染料 染料掺杂 相变温度 电光特性 160.0160 Materials 230.0230 Optical devices Chinese Optics Letters
2008, 6(11): 858
1 中国科学院 长春光学精密机械与物理研究所，长春 130033
2 中国科学院研究生院，北京 100039
介绍了一种使用聚酰亚胺和偶氮类染料进行液晶光诱导取向技术，深入研究了代号为SY04包含两个偶氮基团的新偶氮类染料．通过对取向膜偏振吸收光谱的分析，讨论了这种混合材料光诱导取向机理．由于聚酰亚胺良好的成膜性使得这种光诱导取向膜具有很好的稳定性，偶氮类染料的引入使得液晶表面取向更加有序，从而获得了响应快速，电光特性优良的液晶盒．这种取向膜材料同时具有很好的热稳定性及抗紫外稳定性．
液晶 光诱导取向 偶氮类染料 Liquid crystal Photo alignment Azo-dye
