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Circularly polarized luminescent self-organized helical superstructures:From materials and stimulus-responsiveness to applications

查看全文 作　　者：Yanrong [1]He;Siyang [1]Lin;Jinbao [1]Guo;Quan [2,3]Li 高影响力作者 机构地区：[1]Key Laboratory of Carbon Fibers and Functional Polymers,Ministry of Education,and College of Materials Science and Engineering,Beijing University of Chemical Technology,Beijing,China;[2]Institute of Advanced Materials,School of Chemistry and Chemical Engineering,and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research,Southeast University,Nanjing,China;[3]Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program,Kent State University,Kent,Ohio,USA高影响力机构 出　　处：《Aggregate》索引2021年第2卷第6期,共22页高影响力期刊 基　　金：National Natural Science Foundation of China,Grant/Award Numbers:52073017,51773009;FundamentalResearch Funds for the Central Universities;NationalNatural Science Foundation of China,Grant/Award Numbers:52073017,51773009;FundamentalResearch Funds for the Central Universities。 摘　　要：Circularly polarized luminescence(CPL)has gained considerable attention in various systems and has rapidly developed into an emerging research field.To meet the needs of actual applications in diverse fields,a high luminescence dissymmetry factor(glum)and tunable optical performance of CPL would be the most urgent pursuit for researchers.Accordingly,many emerging CPL materials and various strategies have been developed to address these critical issues.Emissive cholesteric liquid crystals(CLCs),that is,luminescent self-organized helical superstructures,are considered to be ideal candidates for constructing CPL-active materials,as they not only exhibit high glum values,but also enable flexible optical control of CPL.This review mainly summarizes the characteristics of CPL based on CLCs as the bulk phase doped with different emitters,including aggregated induced emission molecules,conventional organic small molecules,polymer emitters,metal-organic complex emitters,and luminescent nanoparticles.In addition,the recent significant progress in stimulus-responsive CPL based on emissive CLCs in terms of several types of stimuli,including light,electricity,temperature,mechanical force,and multiple stimuli is presented.Finally,a short perspective on the opportunities and challenges associated with CPL-active materials based on the CLC field is provided.This review is anticipated to offer new insights and guidelines for developing CLC-based CPL-active materials for broader applications. 关 键 词：amplifying dissymmetry factor cholesteric liquid crystal circularly polarized luminescence self-organized helical superstructure stimulus-responsiveness
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