Influence of interlayer on the performance of stacked white organic light-emitting devices

被引：24

作者：

Chen, Ping ^{[1
]}

Xue, Qin ^{[1
]}

Xie, Wenfa ^{[1
]}

Xie, Guohua ^{[1
]}

Duan, Yu ^{[1
]}

Zhao, Yi ^{[1
]}

Liu, Shiyong ^{[1
]}

Zhang, Liying ^{[2
]}

Li, Bin ^{[2
]}

机构：

[1] Jilin Univ, State Key Lab Integrated Optoelect, Coll Elect Sci & Engn, Changchun 130012, Peoples R China

[2] Chinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2009年 / 95卷 / 12期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

EFFICIENCY; DIODES;

D O I：

10.1063/1.3234379

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Stacked white organic light-emitting devices (WOLEDs) comprising of blue fluorescent and orange phosphorescent emissive units employing tri(8-hydroxyquinoline)aluminum (Alq(3)): Mg/MoO(3) as charge generation layer are fabricated. The working mechanism of Alq(3): Mg/MoO(3) is also discussed using a simple method. We demonstrate charge-carrier separation takes place only in MoO(3) layer. Stacked WOLED with better performance was obtained by adjusting the thickness of MoO(3). The stacked WOLED with efficiency of 39.2 cd/A has excellent color stability with the Commission Internationale de l'Eclairage coordinates only changing from (0.407, 0.405) to (0.398, 0.397) when luminance increases from 22 to 10 000 cd/m(2). (C) 2009 American Institute of Physics. [doi: 10.1063/1.3234379]

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页数：3

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