Color-stable and efficient stacked white organic light-emitting devices comprising blue fluorescent and orange phosphorescent emissive units

被引：41

作者：

Chen, Ping ^{[1
]}

Xue, Qin ^{[1
]}

Xie, Wenfa ^{[1
]}

Duan, Yu ^{[1
]}

Xie, Guohua ^{[1
]}

Zhao, Yi ^{[1
]}

Hou, Jingying ^{[1
]}

Liu, Shiyong ^{[1
]}

Zhang, Liying ^{[2
]}

Li, Bin ^{[2
]}

机构：

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

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

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 15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：

Citrus fruits - Organic light emitting diodes (OLED) - Energy transfer - Fluorescence;

D O I：

10.1063/1.2998598

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have demonstrated two kinds of stacked white organic light-emitting diodes (WOLEDs) employing tri(8-hydroxyquinoline) aluminum:20 wt %Mg/MoO3 as charge generation layer. White light emission can be obtained by mixing blue fluorescence and orange phosphorescence. Stacked WOLED with individual blue fluorescent and orange phosphorescent emissive units has better color stability and higher efficiency than that with double white emissive units, which is attributed to the avoidance of the movement of charges recombination zone and elimination of the Dexter energy transfer between blue and orange emission layers occurring in the latter. The efficiency of the stacked WOLED is 35.9 cd/A at 1000 cd/m(2). (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2998598]

引用

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