18 February 2011 Comparison of two methods of improving the characteristics of a double-color white organic light-emitting diode
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Proceedings Volume 7995, Seventh International Conference on Thin Film Physics and Applications; 79952F (2011) https://doi.org/10.1117/12.888395
Event: Seventh International Conference on Thin Film Physics and Applications, 2010, Shanghai, China
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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xue Chen, Xue Chen, Wen-Qing Zhu, Wen-Qing Zhu, Sai Wang, Sai Wang, Feng Xu, Feng Xu, Hong Xu, Hong Xu, Xiao-Wen Zhang, Xiao-Wen Zhang, Xi-Feng Li, Xi-Feng Li, Xue-Yin Jiang, Xue-Yin Jiang, Zhi-Lin Zhang, Zhi-Lin Zhang, "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 (18 February 2011); doi: 10.1117/12.888395; https://doi.org/10.1117/12.888395
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