胆甾相液晶图案的动态调控与应用  

Dynamic regulation and application of cholesteric liquid crystal patterns

作　　者：尚园园 王京霞[2] 江雷[2] SHANG Yuanyuan;WANG Jingxia;JIANG Lei(College of Chemistry and Chemical Engineering,Huanggang Normal University,Huanggang 438000,China;Key Laboratory of Bio-inspired Materials and Interfaces Sciences,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[1]黄冈师范学院化学化工学院,湖北黄冈438000 [2]中国科学院理化技术研究所仿生材料与界面科学重点实验室,北京100190

出　　处：《液晶与显示》2024年第3期349-368,共20页Chinese Journal of Liquid Crystals and Displays

基　　金：国家自然科学基金(No.52373001,No.51873221,No.52073292,No.51673270,No.21774003,No.51373183);中国科学院与荷兰合作研究项目(No.1A111KYSB20190072)。

摘　　要：自然界光子晶体图案为生物的生存提供了独特的功能,例如变色龙使其皮肤图案颜色适应环境以进行伪装保护,头足类动物(鱿鱼、墨鱼、章鱼等)能够产生宽波长范围的结构颜色和光学图案以利于物种间的信息交流。受自然界光学图案的特殊功能启发,胆甾相液晶的图案得以开发,并在数据存贮、传感器、柔性智能器件等方面展示了潜在应用。本文综述了胆甾相液晶图案的外场刺激响应性、功能演变及其应用。首先,总结了胆甾相液晶图案的外场刺激响应性,包括光、电、热、机械力和溶剂。其次,介绍了胆甾相液晶图案的各种应用,如具有加密和解密功能的存贮器件、信息安全防伪设备、柔性可穿戴传感器和圆偏振发光系统等。最后,介绍了胆甾相液晶图案的前景和挑战。本文为构建基于胆甾相液晶图案的新型功能材料提供了基础。The natural photonic crystal patterns provide unique functions for the survival of organisms,such as chameleons adapting their skin pattern colors to the environment for camouflage protection,and cephalopods(squid,cuttlefish,octopus,etc.)producing a wide range of structural colors and photonic patterns to facilitate information exchange between species.Inspired by the special functions of natural photonic patterns,cholesteric liquid crystals(CLCs)patterns have been developed and demonstrated potential applications in data storage,sensors,flexible intelligent devices,and other fields.This article reviews the external stimulus responsiveness,functional evolution,and applications of CLC patterns.Firstly,the external stimulus responsiveness of CLC patterns are summarized,including light,electricity,heat,mechanical force,and solvent.Secondly,various applications of CLC patterns are introduced,such as storage devices with encryption and decryption functions,information security and anti-counterfeiting devices,flexible wearable sensors,and circularly polarized light emitting systems.Finally,the prospects and challenges of CLC patterns are introduced.This review provides a foundation for constructing new functional materials based on CLC patterns.

关 键 词：胆甾相液晶 光学图案 外场调控 

分 类 号：O753.2[理学—晶体学]