Air-Stable Ultrabright Inverted Organic Light-Emitting Devices with Metal Ion-Chelated Polymer Injection Layer

被引：0

作者：

Shihao Liu ^{[1
,2
]}

Chunxiu Zang ^{[1
]}

Jiaming Zhang ^{[1
]}

Shuang Tian ^{[2
]}

Yan Wu ^{[2
]}

Dong Shen ^{[2
]}

Letian Zhang ^{[1
]}

Wenfa Xie ^{[1
]}

ChunSing Lee ^{[2
]}

机构：

[1] State Key Laboratory of Integrated Optoelectronics,College of Electronics Science and Engineering,Jilin University

[2] Department of Chemistry,Center of Super-Diamond and Advanced Films (COSDAF),City University of Hong

来源：

Nano-Micro Letters | 2022年 / 14卷 / 01期

关键词：

D O I：

暂无

中图分类号：

TN383.1 []; TQ317 [高分子化合物产品];

学科分类号：

摘要：

Here,this work presents an air-stable ultrabright inverted organic light-emitting device （OLED） by using zinc ion-chelated polyethylenimine （PEI） as electron injection layer.The zinc chelation is dem-onstrated to increase the conductivity of the PEI by three orders of magnitude and pas-sivate the polar amine groups.With these physicochemical properties,the inverted OLED shows a record-high external quan-tum efficiency of 10.0%at a high bright-ness of 45,610 cd m-2 and can deliver a maximum brightness of 121,865 cd m-2.Besides,the inverted OLED is also dem-onstrated to possess an excellent air stabil-ity （humidity,35%） with a half-brightness operating time of 541 h@1000 cd m-2without any protection nor encapsulation.

引用

页码：245 / 255

页数：11

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