A hybrid white organic light-emitting diode with above 20% external quantum efficiency and extremely low efficiency roll-off

	A hybrid white organic light-emitting diode with above 20% external quantum efficiency and extremely low efficiency roll-off
	Sun, Ning ; Wang, Qi ; Zhao, Yongbiao ; Yang,Dezhi ; Zhao,Fangchao ; Chen,Jiangshan ; Ma,Dongge
刊名	journal of materials chemistry c
	2014
卷号	2 期号:36 页码:7494-7504
关键词	BIPOLAR HOST MATERIALS HIGHLY EFFICIENT PHOSPHORESCENT OLEDS TRIPLET EXCITONS SINGLE-LAYER DEVICE EFFICIENCY LOW-VOLTAGE ENERGY-GAP BLUE FLUORESCENT
通讯作者	ma,dg
英文摘要	recently, the combination of blue fluorescent emitter with long wavelength phosphorescent emitters in the so-called hybrid white organic light-emitting diodes (woleds) has attracted significant attention. however, compared to the previously reported all-phosphor woleds, the efficiencies of hybrid woleds are still unsatisfactory. in this work, through a delicate design of the device structure, nearly all generated excitons are harnessed for light emission in the hybrid woled. the hybrid device shows excellent electroluminescence (el) performance with a forward-viewing maximum external quantum efficiency (eqe), current efficiency (ce) and power efficiency (pe) of 21.2%, 49.6 cd a(-1) and 40.7 lm w-1, respectively, which then slightly decreases to 20.0%, 49.5 cd a(-1) and 37.1 lm w-1 at 1000 cd m(-2) , which are the highest levels reported so far. this work opens up an avenue for the development of blue fluorescent emitter together with a novel device structural design for ultrahigh performance hybrid woleds in the future.
收录类别	SCI
语种	英语
公开日期	2015-10-27
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/56228]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Sun, Ning,Wang, Qi,Zhao, Yongbiao,et al. A hybrid white organic light-emitting diode with above 20% external quantum efficiency and extremely low efficiency roll-off[J]. journal of materials chemistry c,2014,2(36):7494-7504.
APA	Sun, Ning.,Wang, Qi.,Zhao, Yongbiao.,Yang,Dezhi.,Zhao,Fangchao.,...&Ma,Dongge.(2014).A hybrid white organic light-emitting diode with above 20% external quantum efficiency and extremely low efficiency roll-off.journal of materials chemistry c,2(36),7494-7504.
MLA	Sun, Ning,et al."A hybrid white organic light-emitting diode with above 20% external quantum efficiency and extremely low efficiency roll-off".journal of materials chemistry c 2.36(2014):7494-7504.