Highly efficient and spectra stable warm white organic light-emitting diodes by the application of exciplex as the excitons adjustment layer

doi:10.1016/j.orgel.2018.07.030

CIOMP OpenIR

	Highly efficient and spectra stable warm white organic light-emitting diodes by the application of exciplex as the excitons adjustment layer
	Wang, Ziqi 1; Liu, Zemei 1; Zhang, Heng 1; Zhao, Bo 1; Chen, Liuqing 1; Xue, Lin 2; Wang, Hua 1; Li, Wenlian 3
	2018-11-01
发表期刊	ORGANIC ELECTRONICS
ISSN	1566-1199
卷号	62 页码:157-162
通讯作者	Zhao, Bo(zhaobo01@tyut.edu.cn) ; Chen, Liuqing(chenliuqing@tyut.edu.cn) ; Xue, Lin(xpw896@163.com)
摘要	We aim to simplify the device structure due to the low concentration precision and repeatability of white organic light-emitting diodes (WOLEDs) based on exciplex host with phosphorescent dopant. Two layers of exciplex used here play the role of blue emitter and excitons adjustment layer, respectively, to manage the excitons. Green and red phosphorescent ultrathin layer are inserted into exciplex layer to form white light-emitting. The maximum efficiency values of current efficiency, power efficiency and EQE reach to 38.8 cd/A, 34.9 lm/W and 15.3%, and remain 29.7 cd/A, 20.4 lm/W and 11.6% at 1000 cd/m(2), respectively. Besides, the change of Commission Internationale de I'Eclairage coordinates is only (0.024, 0.013) with the enhanced driving voltages from 4 V to 6 V. Such a high performance of warm WOLEDs with simple structure demonstrates the reasonable excitons management and efficient energy transfer from exciplex and excitons adjustment layer to ultrathin phosphorescent emitters.
关键词	WOLEDs Exciplex EAL Adjustment layer Stable spectra
DOI	10.1016/j.orgel.2018.07.030
关键词[WOS]	ACTIVATED DELAYED FLUORESCENCE ; COLOR-RENDERING INDEX ; ROLL-OFF ; QUANTUM EFFICIENCY ; POWER EFFICIENCY ; ENERGY-TRANSFER ; BLUE EXCIPLEX ; FORMING HOST ; DEVICES ; OLEDS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[61605137] ; National Natural Science Foundation of China[61605138] ; National Natural Science Foundation of China[61705156] ; National Natural Science Foundation of China[61775155] ; National Natural Science Foundation of China[61704118] ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (STIP)[2016134]
项目资助者	National Natural Science Foundation of China ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (STIP)
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000450625700022
出版者	ELSEVIER SCIENCE BV
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/60313
专题	中国科学院长春光学精密机械与物理研究所
通讯作者	Zhao, Bo; Chen, Liuqing; Xue, Lin
作者单位	1.Taiyuan Univ Technol, Res Ctr Adv Mat Sci & Technol, Minist Educ, Key Lab Interface Sci & Engn Adv Mat, Taiyuan 030024, Shanxi, Peoples R China 2.Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Shanxi, Peoples R China 3.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ziqi,Liu, Zemei,Zhang, Heng,et al. Highly efficient and spectra stable warm white organic light-emitting diodes by the application of exciplex as the excitons adjustment layer[J]. ORGANIC ELECTRONICS,2018,62:157-162.
APA	Wang, Ziqi.,Liu, Zemei.,Zhang, Heng.,Zhao, Bo.,Chen, Liuqing.,...&Li, Wenlian.(2018).Highly efficient and spectra stable warm white organic light-emitting diodes by the application of exciplex as the excitons adjustment layer.ORGANIC ELECTRONICS,62,157-162.
MLA	Wang, Ziqi,et al."Highly efficient and spectra stable warm white organic light-emitting diodes by the application of exciplex as the excitons adjustment layer".ORGANIC ELECTRONICS 62(2018):157-162.

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