有机电致发光器件中黑点形成机制及预防研究进展  

Research Progress on the Formation Mechanism and Prevention of Black Spot in Organic Light-Emitting

作　　者：胡松文 周允红 金景一 杨文运[1] 杨炜平 陈雪梅[1] 陈鹏远 张磊 李思德 高树雄[1] 雷登林 HU Songwen;ZHOU Yunhong;JIN Jingyi;YANG Wenyun;YANG Weiping;CHEN Xuemei;CHEN Pengyuan;ZHANG Lei;LI Side;GAO Shuxiong;LEI Dengin(Kunming Institute of Physics,Kunming 650223,China)

机构地区：[1]昆明物理研究所,云南昆明650223

出　　处：《红外技术》2024年第11期1261-1273,共13页Infrared Technology

摘　　要：有机电致发光器件(OLEDs)由于具有主动发光、响应速度快、视角宽、且与柔性电子兼容等优秀特性而在显示行业广受关注,然而由于器件对水氧非常敏感,一旦跟水氧接触就会失效,其中黑点的形成是影响器件成品率的一大原因。相关研究提出了几种黑点形成机制但并没有特定模型,此外,黑点形成相对模糊且不可预测。为了减少和防止黑点的形成,本文总结了黑点的形成原因,讨论了黑点的形成机制,并给出了黑点预防措施。Organic light-emitting devices(OLEDs)have attracted wide attention in the display industry owing to their excellent characteristics,such as active luminescence,fast response time,wide viewing angle,and compatibility with flexible electronics.Nevertheless,organic luminescent materials are vulnerable to environmental moisture and oxygen,and they fail once they come in contact with water and oxygen.The formation of black spots is one of the main factors affecting the product yields of these devices.Relevant studies have proposed several mechanisms for the formation of black spots;however,there is no specific model.In addition,current models of the formation of black spots are relatively vague and unpredictable.To reduce and prevent the formation of black spots,this study summarizes the causes of black spot formation,discusses the formation mechanism of black spots,and provides preventive measures.

关 键 词：电致发光 大小黑点 针孔缺陷 颗粒杂质 高电流 

分 类 号：TN204[电子电信—物理电子学]