液晶与显示2024，Vol.39Issue(1)：10-16,7.DOI:10.37188/CJLCD.2023-0360
应用于325 nm波段高透过低降解液晶材料
High transmittance and low degradation liquid crystal materials applied in the 325 nm wavelength range
摘要
Abstract
By controlling the arrangement of liquid crystal molecules,liquid crystal spatial light modulators(LC-SLM)modulate light through changing external voltage intensity.Recently,the importance of LC-SLM applicable in ultra-violet region continuously increases due to multiple applications such as photo-polymerization 3D printing.However,the vast majority of liquid crystal materials are organic compounds that absorb light and react in ultraviolet band.To expand the application band of liquid crystal materials,this paper designs a class of liquid crystal materials that do not absorb or react to light in the 325～400 nm band by selecting functional groups that do not absorb or react to light in the application band and simulating the ultraviolet-visible spectrum of the liquid crystal materials to verify the rationality of the design.The ultraviolet stability of the liquid crystal materials is compared with that of two common mixed liquid crystal materials after the ultraviolet-resistant liquid crystal compound is configured into a mixed liquid crystal material.After being irradiated by a 325 nm ultraviolet light source for 120 min,the absorbance and phase transition temperature of the liquid crystal material hardly change,the birefringence changes by 0.04%,the threshold voltage changes by 1.39%,and the response time changes by 0.32%.关键词
液晶材料/紫外稳定性/双折射率Key words
liquid crystal material/UV stability/birefringence分类
数理科学引用本文复制引用
刘怀宇,刘永刚,王启东,穆全全,杨小东,彭增辉..应用于325 nm波段高透过低降解液晶材料[J].液晶与显示,2024,39(1):10-16,7.基金项目
国家重点研发计划(No.2021YFB3600300) （No.2021YFB3600300）
国家自然科学基金(No.61975202,No.U2030101)Supported by National Key R&D Program of China(No.2021YFB3600300) （No.61975202,No.U2030101）
National Natural Science Foun-dation of China(No.61975202,No.U2030101) （No.61975202,No.U2030101）
