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Proceedings Paper

A green top-emitting organic light-emitting device with single-mode resonance and improved performance by using WO3 capping layer
Author(s): Sai Wang; Wen-Qing Zhu; Xue Chen; Feng Xu; Hong Xu; Xiao-Wen Zhang; Xi-Feng Li; Xue-Yin Jiang; Zhi-Lin Zhang
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Paper Abstract

A top-emitting organic light-emitting device (TOLED) with an architecture of Ag/Wo3/4,4'-bis[N -(1-naphthyl-1)-N-phenyl-amino]-biphenyl/tris-(8-hydroxyquinoline)aluminium(Alq3)/LiF/Al/semitransparent Ag/Capping layer 20~40nm WO3 as capping layer has been investigated and WO3 was demonstrated to be an effective capping layer and improve the luminance by a factor of 1.7 between the maximum and minimum transmittance of top contact. In this paper, the thicknesses of organic layers are calculated based on Fabry-Perot cavity theory. And with optimized, the top -emitting organic devices with single-mode resonance have a good ability such as a brightness of 40920cd/m2 at the current density of 600ma/cm2 and a maximum luminous efficiency of 7.32cd/A at 9145cd/m2.

Paper Details

Date Published: 18 February 2011
PDF: 4 pages
Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 799533 (18 February 2011); doi: 10.1117/12.888233
Show Author Affiliations
Sai Wang, Shanghai Univ. (China)
Wen-Qing Zhu, Shanghai Univ. (China)
Xue Chen, Shanghai Univ. (China)
Feng Xu, Shanghai Univ. (China)
Hong Xu, Shanghai Univ. (China)
Xiao-Wen Zhang, Shanghai Univ. (China)
Xi-Feng Li, Shanghai Univ. (China)
Xue-Yin Jiang, Shanghai Univ. (China)
Zhi-Lin Zhang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 7995:
Seventh International Conference on Thin Film Physics and Applications
Junhao Chu; Zhanshan Wang, Editor(s)

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