Optimizing the conjugation between N,N '-dicarbazolyl-3, 5-benzene and triphenylphosphine oxide as bipolar hybrids for highly efficient blue and single emissive layer white phosphorescent OLEDs

	Optimizing the conjugation between N,N '-dicarbazolyl-3, 5-benzene and triphenylphosphine oxide as bipolar hybrids for highly efficient blue and single emissive layer white phosphorescent OLEDs
	Huang H ; Yang X ; Wang YX ; Pan B ; Wang L ; Chen JS ; Ma DG ; Yang CL
刊名	organic electronics
	2013
卷号	14 期号:10 页码:2573-2581
关键词	HIGH-TRIPLET-ENERGY LIGHT-EMITTING-DIODES HOST MATERIALS PHOSPHINE OXIDE ROLL-OFF DEVICES CARBAZOLE DESIGN DENSITY
ISSN号	1566-1199
通讯作者	yang cl
中文摘要	two bipolar host materials, mcpppo and mcpmpo have been synthesized by ni(ii)/zn-catalyzed cross-coupling of diphenylphosphine oxide and corresponding aryl bromide. the photophysical properties, homo/lumo orbital distribution and triplet levels of these host materials are investigated and optimized by tuning the linking modes between electron acceptor triphenylphosphine oxide and electron donor n,n'-dicarbazolyl-3,5-benzene (mcp). when mcp is linked to the meta-position of benzene of triphenylphosphine oxide, the hybrid (mcpmpo) shows much higher steric hinderance than the para-position linked analogue (mcpppo) so that it possesses a higher triplet energy. equipped with the bipolar transport properties, mcpmpo-based blue pholed doped firpic shows a maximum current efficiency (eta(c,max)) of 40.0 cd/a, a maximum power efficiency (eta(p,max)) of 39.7 lm/w, corresponding the maximum external quantum efficiency (eta(eqe,max)) of 20.3%, and the current efficiency still maintain to 34.8 cd/a even at 1000 cd/m(2). based on the optimized triplet energy level, the single emission layer white pholed hosted by mcpmpo shows eta(c,max), eta(p,max) and eta(eqe,max) of 46.9 cd/a, 39.7 lm/w and 17.6%, respectively. (c) 2013 elsevier b. v. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000323933600028
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49586]
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	Huang H,Yang X,Wang YX,et al. Optimizing the conjugation between N,N '-dicarbazolyl-3, 5-benzene and triphenylphosphine oxide as bipolar hybrids for highly efficient blue and single emissive layer white phosphorescent OLEDs[J]. organic electronics,2013,14(10):2573-2581.
APA	Huang H.,Yang X.,Wang YX.,Pan B.,Wang L.,...&Yang CL.(2013).Optimizing the conjugation between N,N '-dicarbazolyl-3, 5-benzene and triphenylphosphine oxide as bipolar hybrids for highly efficient blue and single emissive layer white phosphorescent OLEDs.organic electronics,14(10),2573-2581.
MLA	Huang H,et al."Optimizing the conjugation between N,N '-dicarbazolyl-3, 5-benzene and triphenylphosphine oxide as bipolar hybrids for highly efficient blue and single emissive layer white phosphorescent OLEDs".organic electronics 14.10(2013):2573-2581.