Optimization of Orange-Emitting Electrophosphorescent Copolymers for Organic Light-Emitting Diodes

被引：71

作者：

Haldi, Andreas ^{[1
]}

Kimyonok, Alpay ^{[1
]}

Domercq, Benoit ^{[1
]}

Hayden, Lauren E. ^{[1
]}

Jones, Simon C. ^{[1
]}

Marder, Seth R. ^{[2
]}

Weck, Marcus ^{[2
]}

Kippelen, Bernard ^{[2
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biochem, Ctr Organ Photon, Atlanta, GA 30332 USA

[2] Georgia Inst Technol, Sch Elect & Comp Engn, COPE, Atlanta, GA 30332 USA

来源：

ADVANCED FUNCTIONAL MATERIALS | 2008年 / 18卷 / 19期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1002/adfm.200800446

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Orange-emitting phosphorescent copolymers containing iridium complexes and bis(carbazolyl)fluorene groups in their side chains are employed as the emissive layer in multilayer organic light-emitting diodes (OLEDs). The efficiency of the OLED devices is optimized by varying characteristics of the copolymers: the molecular weight, the iridium loading level, and the nature and length of the linker between the side chains and the polymer backbone. A maximum efficiency of 4.9 +/- 0.4%, 8.8 +/- 0.7 cd A(-1) at 100 cd m(-2) is achieved with an optimized copolymer.

引用

页码：3056 / 3062

页数：7

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