Highly efficient green phosphorescent organic light-emitting diodes with simplified device geometry

被引：26

作者：

Haldi, A. ^{[1
]}

Domercq, B. ^{[1
]}

Kippelen, B. ^{[1
]}

Hreha, R. D. ^{[2
]}

Cho, J. -Y. ^{[3
]}

Marder, S. R. ^{[3
]}

机构：

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

[2] Univ Arizona, Dept Chem, Tucson, AZ 85721 USA

[3] Georgia Inst Technol, Sch Chem & Biochem, COPE, Atlanta, GA 30332 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 25期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2952452

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the performance of green phosphorescent organic light-emitting diodes based on the well-known host 4,4'-di(carbazol-9-yl)-biphenyl and the green phosphor emitter fac tris(2-phenylpyridinato-N,C(2)') iridium. Using a spin-coated hole-injection/transport layer of poly(N-vinyl-carbazole) and a hole-blocking/electron-transport layer of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline, devices with efficiencies of 21.2% and 72 cd/A at 100 cd/m(2) were obtained in a simplified device geometry that requires the deposition of only two organic layers from the vapor phase. (c) 2008 American Institute of Physics.

引用

页数：3

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