Photo-instability in a binary mixture of banana-shaped and rod-shaped liquid crystals

摘要：

By triangular wave method, we studied the effects of ultraviolet irradiation on the polarization of a binary liquid crystal mixture. The mixture was comprised of 94 wt％ of banana-shaped liquid crystal 4-chloro-1,3-phenylene bis 4-(4-n-tetradecyl) phenylimino methyl benzoate and 6 wt％ of an azo-containing rod-shaped liquid crystal hexanoic acid 4-(4-ethoxy-phenylazo)-phenyl ester. Under the 365 nm irradiation for 40 minutes, the polarization of the mixture was observed to decrease 10％ although the component of the banana-shaped liquid crystal was photostable. Our results demonstrated that photolysis took place in the component of azo-containing rod-shaped liquid crystal.

关键词： Banana-shaped liquid crystal Photostability Spontaneous polarization Azobenzene complex Photoirradiation Antiferroelectricity

作者: Lan-li Chen Bao-gai Zhai Yuan Ming Huang

作者单位: Department of Electronics, Nanyang Institute of Technology, Henan 473004, China Modem Educational Technology Center, Yunnan Normal University, Yunnan 650092, China College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650092, China

会议类型: 国际会议

会议名称: 2009 International Symposium on Liquid Crystal Science and Technology(2009国际液晶科技研讨会)

会议地点: 昆明

会议语种:英文

页码: 305-308

在线出版日期: 2009-08-02（万方平台首次上网日期，不代表论文的发表时间）