Conjugated Zwitterionic Polyelectrolyte as the Charge Injection Layer for High-Performance Polymer Light-Emitting Diodes

被引：183

作者：

Fang, Junfeng ^{[2
]}

Wallikewitz, Bodo H. ^{[1
]}

Gao, Feng ^{[1
]}

Tu, Guoli ^{[2
,3
]}

Mueller, Christian ^{[2
]}

Pace, Giuseppina ^{[1
]}

Friend, Richard H. ^{[1
]}

Huck, Wilhelm T. S. ^{[2
,4
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Dept Phys, Cambridge CB3 0HE, England

[2] Univ Cambridge, Dept Chem, Melville Lab Polymer Synth, Cambridge CB2 1EW, England

[3] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[4] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 AJ Nijmegen, Netherlands

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

ELECTRON-INJECTION; TRANSIENT ELECTROLUMINESCENCE; HIGH-EFFICIENCY; CATHODE; DEVICES;

D O I：

10.1021/ja108541z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new zwitterionic conjugated polyelectrolyte without free counterions has been used as an electron injection material in polymer light-emitting diodes. Both the efficiency and maximum brightness were considerably improved in comparison with standard Ca cathode devices. The devices showed very fast response times, indicating that the improved performance is, in addition to hole blocking, due to dipoles at the cathode interface, which facilitate electron injection.

引用

页码：683 / 685

页数：3

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