Highly efficient tandem full exciplex orange and warm white OLEDs based on thermally activated delayed fluorescence mechanism

	Highly efficient tandem full exciplex orange and warm white OLEDs based on thermally activated delayed fluorescence mechanism
	Zhao, B.; T. Y. Zhang; B. Chu; W. L. Li; Z. S. Su; Y. S. Luo; R. G. Li; X. W. Yan; F. M. Jin; Y. Gao and H. R. Wu
	2015
发表期刊	Organic Electronics
卷号	17 页码:15-21
摘要	In this manuscript, we demonstrated highly efficient tandem full exciplex orange and warm white organic light emitting diodes (OLEDs) by using 2,4,6-tris(3-(1H-pyrazol-1-yl) phenyl)-1,3,5-triazine (3P-T2T):cesium carbonate (Cs2CO3)/Al/molybdenum trioxide (MoO3) as the charge generation layer. The maximum current efficiency and external quantum efficiency (EQE) of the optimized tandem orange OLEDs are 38.1 cd/A and 14.4%, respectively. We then utilized two primary colors of blue and orange exciplex emitter to achieve highly efficient white emission. The tandem WOLEDs made by stacking two single color OLEDs in series demonstrate a maximum EQE of 9.17%. Meanwhile, the spectra are almost the same under various voltages, with the Commission Internationale de I'Eclairage coordinates of (0.41, 0.44), which change only (+/- 0.003, +/- 0.002) from 6 V to 14 V. We prove that the highly efficient tandem full exciplex orange and white OLEDs are attributed to the thermally activated delayed fluorescence by efficient reverse intersystem crossing. Balanced carriers injection and recombination are responsible for the stable spectra of the white OLEDs. (C) 2014 Elsevier B.V. All rights reserved.
收录类别	SCI ; EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/55527
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Zhao, B.,T. Y. Zhang,B. Chu,et al. Highly efficient tandem full exciplex orange and warm white OLEDs based on thermally activated delayed fluorescence mechanism[J]. Organic Electronics,2015,17:15-21.
APA	Zhao, B..,T. Y. Zhang.,B. Chu.,W. L. Li.,Z. S. Su.,...&Y. Gao and H. R. Wu.(2015).Highly efficient tandem full exciplex orange and warm white OLEDs based on thermally activated delayed fluorescence mechanism.Organic Electronics,17,15-21.
MLA	Zhao, B.,et al."Highly efficient tandem full exciplex orange and warm white OLEDs based on thermally activated delayed fluorescence mechanism".Organic Electronics 17(2015):15-21.

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