近红外有机小分子电致发光材料研究进展  

Research progress of near infrared organic small-molecule electroluminescent materials

作　　者：常鹏 韩春苗 许辉 CHANG Peng;HAN Chun-miao;XU Hui(Key Laboratory of Functional Inorganic Material Chemistry,School of Chemistry and Materials,Heilongjiang University,Harbin 150080,China)

机构地区：[1]黑龙江大学功能无机材料化学教育部重点实验室化学化工与材料学院,黑龙江哈尔滨150080

出　　处：《液晶与显示》2021年第1期62-77,共16页Chinese Journal of Liquid Crystals and Displays

基　　金：长江学者奖励计划青年学者项目(No.Q2016208);国家自然科学基金(No.21672056,No.21602048,No.51873056)。

摘　　要：近红外有机发光材料与器件在信息安全、光纤通信、生物成像、医学诊断等重要领域具有广阔的应用前景。近几年,基于热激发延迟荧光、局域电荷转移杂化态、发光自由基的双重态激子发光等机理,电致发光过程中激子的利用率已达到100%,大幅提高了近红外有机电致发光器件的性能。本文综述了近红外有机小分子电致发光材料的研究进展。根据不同的发光机理对材料进行了分类,对各类发光机理及材料与器件的性能进行了总结,并对未来的发展前景进行了展望。Near-infrared(NIR)emitting materials and devices have broad application prospects in fields of information security,optical fiber communication,bioimaging and medical diagnosis.In recent years,new mechanisms based on thermally activated delayed fluorescence(TADF),hybridized local and charge-transfer excited state(HLCT)and radical-based doublet emission,make the NIR devices full exciton utilization and high electroluminescent performance.In this paper,the progress of NIR organic small-molecule electroluminescent materials is reviewed.These materials are classified with different luminescent mechanism,and their electroluminescent performances and further development prospects are summarized.

关 键 词：近红外 电致发光 热激发延迟荧光 局域电荷转移杂化态 发光自由基 

分 类 号：TP394.1[自动化与计算机技术—计算机应用技术] TN383+.1[自动化与计算机技术—计算机科学与技术]