Modulation for efficiency and spectra of non-doped white organic light emitting diodes by combining an exciplex with an ultrathin phosphorescent emitter

doi:10.1039/d0ra06658c

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	Modulation for efficiency and spectra of non-doped white organic light emitting diodes by combining an exciplex with an ultrathin phosphorescent emitter
	Z. M. Liu,B. Zhao,Y. Gao,H. F. Chen,B. Z. Dong,Y. B. Xu,H. Wang,B. S. Xu and W. L. Li
	2020
发表期刊	Rsc Advances
卷号	10 期号:55 页码:33461-33468
摘要	Herein, structured non-doped white organic light-emitting diodes (WOLEDs) were designed by combining the emission of a blue exciplex and orange-red phosphorescent ultrathin layer. The device efficiency and spectra were modulated successfully by adjusting the thickness of the exciplex layer and ultrathin layer, respectively. Meanwhile, high efficiency with external quantum efficiency (EQE) ranging from 15% to 22%, power efficiency from 33 lm W(-1)to 47 lm W(-1)and warm white emission with correlated color temperature (CCT) from 1600 K to 2600 K were realized. The energy transfer process and emission mechanism is also discussed, and the results reveal that the efficient charge trapping and recombination contribute to the improvement of device efficiency and reduce the roll-off efficiency.
DOI	10.1039/d0ra06658c
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收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64699
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. M. Liu,B. Zhao,Y. Gao,H. F. Chen,B. Z. Dong,Y. B. Xu,H. Wang,B. S. Xu and W. L. Li. Modulation for efficiency and spectra of non-doped white organic light emitting diodes by combining an exciplex with an ultrathin phosphorescent emitter[J]. Rsc Advances,2020,10(55):33461-33468.
APA	Z. M. Liu,B. Zhao,Y. Gao,H. F. Chen,B. Z. Dong,Y. B. Xu,H. Wang,B. S. Xu and W. L. Li.(2020).Modulation for efficiency and spectra of non-doped white organic light emitting diodes by combining an exciplex with an ultrathin phosphorescent emitter.Rsc Advances,10(55),33461-33468.
MLA	Z. M. Liu,B. Zhao,Y. Gao,H. F. Chen,B. Z. Dong,Y. B. Xu,H. Wang,B. S. Xu and W. L. Li."Modulation for efficiency and spectra of non-doped white organic light emitting diodes by combining an exciplex with an ultrathin phosphorescent emitter".Rsc Advances 10.55(2020):33461-33468.

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