Effect of temperature on the columnar tilt of discotic liquid crystals

摘要：

The effect of temperature on the tilt of discotic columns in a columnar phase has been studied. The homogenous alignment of discotic columns is achieved by applying a mechanical shearing. In the columnar phase, the tilt of the discotic columns at substrate surface is found to change with temperature. A decrease in the temperature of the substrates causes an increase in the pretilt of the discotic columns. The phenomenon is explained based on the consideration of surface free energy at the interface of the substrate.

关键词： Discotic liquid crystal Columnar phase, Surface free energy Discotic column alignment

作者: Wenjun Zheng Cheng-Yan Chiang Chi Wi Ong

作者单位: Department of Photonics, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, POC Department of Chemistry, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan, POC

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: 186-193

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）