Efficiency Stabilization in Blue Organic Light-Emitting Devices Fabricated Utilizing a Double Emitting Layer with Fluorescence and Phosphorescence Doped Layers

被引：6
作者：
Bang, H. S. [1 ]
Choo, D. C. [1 ]
Kim, T. W. [1 ]
Park, J. H. [2 ,3 ]
Seo, J. H. [2 ,3 ]
Kim, Y. K. [2 ,3 ]
机构：
[1] Hanyang Univ, Res Inst Informat Display, Div Elect & Comp Engn, Seoul 133791, South Korea
[2] Hongik Univ, Dept Informat Display Engn, Seoul, South Korea
[3] Hongik Univ, COMID, Seoul, South Korea
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2009年 / 498卷
关键词：
blue emitting layer; efficiency stabilization; fluorescence; luminance efficiency; organic light-emitting devices; phosphorescence; COMBINATORIAL FABRICATION; ELECTROLUMINESCENT DEVICE; EMISSION; DIODES; RED;
D O I：
10.1080/15421400802619388
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The luminance efficiency of the blue organic light-emitting devices (OLEDs) fabricated utilizing a double emitting layer (DEML) with a 4,4'-Bis(2,2-diphenyl-ethen-1-yl)diphenyl (DPVBi) layer doped with 4,4'-Bis[4-(diphenylamino)styryl]biphenyl (BDAVBi) fluorescence dopant and a 4,4'-Bis(carbazol-9-yl)biphenyl (CBP) layer doped with a bis(3,5-difluoro-2-(2-pyridyl)phenyl-(2-carboxypyridyl)iridium III (FIrpic) phosphorescence dopant at 20mA/cm(2) was 6.2 cd/A, indicative of highly efficient OLEDs. Electroluminescence spectra for the OLEDs with a DEML showed that a dominant peak at 469nm corresponding to the BDAVBi doped DPVBi layer together with a shoulder at 491nm related to the combination of the BDAVBi doped DPVBi layer and the FIrpic doped CBP layer appeared.
引用
收藏
页码：265 / 273
页数：9
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