Top-Emitting White Organic Light-Emitting Diodes Based on Cu as Both Anode and Cathode Supported by the National Basic Research Program of China under Grant No 2010CB327701, and the National Natural Science Foundation of China under Grant No 61275033

It is still challenging to obtain broadband emission covering visible light spectrum as much as possible with negligible angular dependence. In this work, we demonstrate a low driving voltage top-emitting white organic light-emitting diode (TEWOLED) based on complementary blue and yellow phosphor em...

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Bibliographic Details
Published in:Chinese physics letters 2015-09, Vol.32 (9)
Main Authors: Mu, Ye, Zhang, Zhen-Song, Wang, Hong-Bo, Qu, Da-Long, Wu, Yu-Kun, Yan, Ping-Rui, Li, Chuan-Nan, Zhao, Yi
Format: Article
Language:English
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Summary:It is still challenging to obtain broadband emission covering visible light spectrum as much as possible with negligible angular dependence. In this work, we demonstrate a low driving voltage top-emitting white organic light-emitting diode (TEWOLED) based on complementary blue and yellow phosphor emitters with negligible angular dependence. The bottom copper anode with medium reflectance, which is compatible with the standard complementary metal oxide semiconductor (CMOS) technology below 0.13 μm, and the semitransparent multilayer Cs2CO3/Al/Cu cathode as a top electrode, are introduced to realize high-performance TEWOLED. Our TEWOLED achieves high efficiencies of 15.4 cd/A and 12.1 lm/W at a practical brightness of 1000 cd/m2 at low voltage of 4 V.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/9/097801