Improving working lifetime and efficiency of phosphor doped organic light-emitting diodes

	Improving working lifetime and efficiency of phosphor doped organic light-emitting diodes
	Li Y.; Hao Y.; Li W.; Yuan S.; Liu H.; Cui Y.; Wang H.; Xu B.; Huang W.
	2013
发表期刊	Optics Express
ISSN	ISBN/10944087
卷号	21 期号:14
摘要	Long working lifetime and high efficient phosphorescent organic light-emitting diode (PHOLED) in which mixed host composed of wide-band-gap based 4, 7-diphenyl-1, 10-phenanthroline (Bphen) and (4,4'-bis(carbazol-9-yl)- biphenyl) (CBP) was demonstrated. The PHOLED with structure of ITO / MoO 3 / CBP:MoO3 (15v%, 30 nm) / CBP(10 nm) / ([50v%:50v% CBP:Bphen]: 6v% Ir(ppy)3)(30 nm) / Bphen (40 nm) / LiF (1 nm) / Al offers a peak power efficiency of 41.6 lm/W (a peak current efficiency of 39.8 cd/A)) at a low driving voltage of 3 V which increases by 55% and 27% compared to that of corresponding single-host (SH) and double emitting layer (DML) devices, respectively. Especially very long work lifetime (3530 hs) at an initial luminance of 500 cd/m2 of the mixed hosted device is exhibited, rising by about 4.1 and 2.46 times relative to that of corresponding SH and DML devices. High efficiency and longer working lifetime was attributed to the absence of heterojunction and balanced charge carrier transport characteristics in the mixed host based OLED structure. The more detail mechanism was also presented. 2013 Optical Society of America.
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/181722/40712
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li Y.,Hao Y.,Li W.,et al. Improving working lifetime and efficiency of phosphor doped organic light-emitting diodes[J]. Optics Express,2013,21(14).
APA	Li Y..,Hao Y..,Li W..,Yuan S..,Liu H..,...&Huang W..(2013).Improving working lifetime and efficiency of phosphor doped organic light-emitting diodes.Optics Express,21(14).
MLA	Li Y.,et al."Improving working lifetime and efficiency of phosphor doped organic light-emitting diodes".Optics Express 21.14(2013).

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