具有聚集诱导发光性质的液晶材料 研究进展

Research Progress of Liquid Crystal with Aggregation-Induced Emission

摘要:

发光液晶材料因自身克服了聚集荧光淬灭的缺点，使其同时具有自发光和各向异性的特点。本文介绍了四苯基乙烯类、二苯丙烯腈类、二苯乙炔类、聚集诱导发光分子修饰的苯并菲类以及其它类型的具有聚集诱导发光性质的发光液晶材料，重点阐述了它们的聚集诱导发光性质、液晶自组装性质，并说明了各自的构效关系。综合文献报道可知，将发光液晶材料应用在光电器件上能极大地节约成本、减少能耗。最后得出在合成此类发光液晶材料时，需合理的利用聚集诱导发光基团和液晶基团，而且研究重点应集中在此类材料应用范围的拓展和发光机理的研究上。

Abstract:

Light-emitting liquid crystals show self-luminous and anisotropic characteristics, for overcoming the defect of aggregation-caused quenching. In this paper, tetraphenylethene, diphenylacrylonitrile, diphenylacetylene, triphenylene decorated with Aggregation-Induced Emission (AIE) and other liquid crystal materials with AIE property are introduced, their AIE and liquid crystal properties are mainly described and their structure-activity relationship is also illustrated. Literatures reported show the use of light-emitting liquid crystal materials in optoelectronic devices can greatly reduce costs and energy consumption. Finally, the aggregation-induced emission groups and liquid crystal groups were both used correctly in synthesis of light-emitting liquid crystals and the future study should focus on the application and luminous mechanism of such materials.