Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host

doi:10.1039/c7ra11325k

CIOMP OpenIR

	Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host
	Zhang, H.; Wang, Z. Q.; Gao, L.; Zhao, B.; Li, W. L.
	2018
发表期刊	Rsc Advances
ISSN	2046-2069
卷号	8 期号:2 页码:954-959
摘要	Pure fluorescent WOLEDs with low efficiency roll-off and high color stability were realized by employing an exciplex host. Due to incomplete energy transfer from the blue exciplex host of mCP : PO-T2T to the orange fluorescent dopant of rubrene, the WOLEDs showed a maximum current efficiency, power efficiency and EQE of 14.2 cd A(-1), 12.8 lm W-1 and 4.90%, respectively. To our surprise, a rather small roll-off ratio of 8.2% from the maximum EQE to the EQE at 1000 cd m(-2) and stable white light-emitting spectra with CIE coordinates of (0.384 + 0.001, 0.439 + 0.002) from 4 V to 8 V were obtained simultaneously. The bipolarity and triplet exciton up-conversion of the exciplex host played key roles in delivering excellent performance. More detailed discussions are also provided.
关键词	activated delayed fluorescence energy-transfer phosphorescence transport excitons acceptor dopants singlet device cohost Chemistry
DOI	10.1039/c7ra11325k
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61048
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	Zhang, H.,Wang, Z. Q.,Gao, L.,et al. Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host[J]. Rsc Advances,2018,8(2):954-959.
APA	Zhang, H.,Wang, Z. Q.,Gao, L.,Zhao, B.,&Li, W. L..(2018).Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host.Rsc Advances,8(2),954-959.
MLA	Zhang, H.,et al."Low efficiency roll-off and high color stability pure fluorescent white organic light-emitting diode based exciplex host".Rsc Advances 8.2(2018):954-959.

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