Degradation Mechanisms in Blue Organic Light-Emitting Diodes  

作　　者：Dan Wang Cong Cheng Taiju Tsuboi Qisheng Zhang 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027

出　　处：《CCS Chemistry》2020年第4期1278-1296,共19页中国化学会会刊（英文）

基　　金：supported by the National Natural Science Foundation of China(grant nos.51873183 and 51673164);the National Key R&D Program of China(grant no.2016YFB0401004).

摘　　要：An organic light-emitting diode(OLED)is required to exhibit long-time operation without degradation as an inorganic LED.Sufficiently long operation time has been demonstrated for green-and red-emitting OLEDs.However,a blue device that is important for full-color display and lighting exhibits a much shorter operational lifetime than the other color devices.The short lifetime is mainly attributed to the molecular dissociation and the defects and radical species formation through various unimolecular and bimolecular processes,including direct photolysis,exciton–exciton interaction,and exciton–polaron interaction,and so on.

关 键 词：fluorescent ORGANIC LIGHT-EMITTING DIODES PHOSPHORESCENT ORGANIC LIGHT-EMITTING DIODES thermally activated delayed fluorescence device degradation operational lifetime molecular DISSOCIATION 

分 类 号：TN312.8[电子电信—物理电子学]