Comparative study of single and multiemissive layers in inverted white organic light-emitting devices

被引:113
作者
Chu, Ta-Ya [1 ]
Chen, Jenn-Fang
Chen, Szu-Yi
Chen, Chin H.
机构
[1] Natl Chiao Tung Univ, Inst Electrophys, Hsinchu 300, Taiwan
[2] Natl Chiao Tung Univ, Display Inst, Microelect & Informat Syst Res Ctr, Hsinchu 300, Taiwan
关键词
D O I
10.1063/1.2348089
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors have fabricated and compared highly efficient inverted white organic light-emitting devices (WOLEDs) with a single emission layer (SEL) and with a multiemission layer (MEL). The efficiency levels of the WOLEDs with a SEL and a MEL achieved 13.0 cd/A, 10.6 lm/W and 11.3 cd/A, 7.3 lm/W, respectively. The projected half lifetime of a SEL device under an initial luminance of 400 cd/m(2) is expected to be over 34 000 h, which is five times better than that of a MEL device of 6350 h. The Commission International de l'Eclairage coordinates of a SEL device are not affected by aging. (c) 2006 American Institute of Physics.
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页数:3
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