表面活性剂含量对全息聚合物分散液晶光栅电光特性的影响  

Effect of Surfactant Content on Electro-optical Property of Holographic Polymer Dispersed Liquid-crystal Gratings

作　　者：郭福忠[1] 郑致刚[1] 宋静[1] 刘永刚[1] 邓舒鹏[2] 宣丽[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室 [2]中国科学技术大学物理系,合肥230026

出　　处：《光子学报》2008年第9期1730-1733,共4页Acta Photonica Sinica

基　　金：国家自然科学基金(60578035,50473040);吉林省自然科学基金(20050520,20050321-2)资助

摘　　要：研究了含表面活性剂Actyflon-G04的全息聚合物分散液晶透射光栅的表面形貌和电光特性,通过理论分析得出驱动电压和膜的锚定能及表面自由能的关系.实验结果表明,在Actyflon-G04含量为4wt%-8wt%时光栅相分离程度高,相界面平滑,聚合物层的致密度增加.光栅的衍射效率达到96%,接近理想值.实现了在提高光栅衍射效率的同时降低驱动电压,使光栅的电光特性得到改善.The morphologies and electro-optical performance of holographic polymer-dispersed liquid crystal （HPDLC） transmission gratings with surfactant Actyflon-G04 were invesligated. The relationship between gratings＇ drive voltage and anchoring energy was obtained theoretically. All experimental results indicate that there is good phase separation, smooth phase interface and compact polymer layer in the gratings when the content of the surfactant at the range of 4wt%-Swt%.The diffraction efficiency was 96% which approached ideal value and the drive voltage was lowered too.

关 键 词：全息聚合物分散液晶 表面活性剂 衍射效率 驱动电压 

分 类 号：O438.1[机械工程—光学工程] TN141.9[理学—光学]