White organic light-emitting devices with a phosphorescent multiple emissive layer

被引:70
作者
Cheng, Gang [1 ]
Zhang, Yingfang
Zhao, Yi
Lin, Yuanyuan
Ruan, Chunyan
Liu, Shiyong
Fei, Teng
Ma, Yuguang
Cheng, Yanxiang
机构
[1] Jilin Univ, Sch Elect Sci & Technol, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China
[2] Jilin Univ, Key Lab Supramol Struct & Mat, Minist Educ, Changchun 130012, Peoples R China
[3] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
D O I
10.1063/1.2227645
中图分类号
O59 [应用物理学];
学科分类号
摘要
A phosphorescent multiple emissive layer, in which a blue emissive layer is sandwiched between red and green ones, is employed in a white organic light-emitting device (OLED). This OLED has a maximum luminance of 48 000 cd/m(2) at 17 V, a maximum power efficiency of 9.9 lm/W at 4 V, and a color rendering index of 82. In addition, the emission color of this device is fairly stable at high luminances: its Commission Internationale de l(')Eclairage coordinate slightly changes from (0.431, 0.436) to (0.400, 0.430) when the luminance ranges from 2000 to 40 000 cd/m(2). (c) 2006 American Institute of Physics.
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页数:3
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