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Proceedings Article

Comparison of two methods of improving the characteristics of a double-color white organic light-emitting diode

[+] Author Affiliations
Xue Chen, Wen-Qing Zhu, Sai Wang, Feng Xu, Hong Xu, Xiao-Wen Zhang, Xi-Feng Li, Xue-Yin Jiang, Zhi-Lin Zhang

Shanghai Univ. (China)

Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79952F (February 17, 2011); doi:10.1117/12.888395
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From Conference Volume 7995

  • Seventh International Conference on Thin Film Physics and Applications
  • Junhao Chu; Zhanshan Wang
  • Shanghai, China | September 24, 2010

abstract

White organic light-emitting diode was realized by co-doping a blue dye p-di(p-N,N-diphenyl-amino-styryl)benzene(DSA-ph) and a red dye 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran(DCJTB) into a blue host 2-(t-butyl)-9,10-di(2-naphthyl)anthracene(TBADN), achieving a brightness of 11580 cd/m2 at 200 mA/cm2, and a maximum current efficiency of 7.53 cd/A. The improvement was due to efficiency energy transfer from host to guest by the aid of assistant energy transfer mechanism. The device introduced a (4,4'-N,N'-dicarbazole)biphenyl/4,4'-bis(N-carbazolyl)biphenyl(CBP) interlayer between separate double emissive layers with the same materials showed improved color stability, due to the blocking effect of the CBP layer, which contributed to stable and even exciton distribution in both blue and red emission layer.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Xue Chen ; Wen-Qing Zhu ; Sai Wang ; Feng Xu ; Hong Xu, et al.
"Comparison of two methods of improving the characteristics of a double-color white organic light-emitting diode", Proc. SPIE 7995, Seventh International Conference on Thin Film Physics and Applications, 79952F (February 17, 2011); doi:10.1117/12.888395; http://dx.doi.org/10.1117/12.888395


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