Improved efficiency by doping blue iridium (III) complex in europium complex-based light-emitting diodes

	Improved efficiency by doping blue iridium (III) complex in europium complex-based light-emitting diodes
	You H ; Li HZ ; Fang JF ; Wang Q ; Wang LX ; Ma DG
刊名	journal of physics d-applied physics
	2007
卷号	40 期号:5 页码:1363-1367
关键词	ORGANIC ELECTROLUMINESCENT DEVICES RED ELECTROLUMINESCENCE ENERGY-TRANSFER FLUORESCENCE BRIGHT
ISSN号	0022-3727
通讯作者	ma dg
中文摘要	we demonstrated high-efficiency red organic light-emitting diodes (oleds) employing a europium complex, eu (iii) tris( thenoyltrifluoroacetone) 3,4,7,8-tetramethyl-1,10-phenanthroline (eu(tta)(3)(tmphen)), as an emitter and a blue electrophosphorescent complex, iridium ( iii) bis[4,6-di-fluorophenyl-pyridinato-n,c-2] picolinate (firpic), as an assistant dopant codoped into 4,4-n, n-dicarbazole-biphenyl (cbp) host as an emissive layer. a pure red electroluminescence (el) only from eu3+ ions at 612 nm with a full width at half maximum of 3 nm was observed and the el efficiency was significantly enhanced. the maximum el efficiency reached 7.9 cd a(-1) at 0.01 ma cm(-2) current density, which is enhanced by 2.8 times compared with electrophosphorescence-undoped devices. the large improvements are attributed to energy transfer assistance effects of firpic, indicating a promising method for obtaining efficient red oleds based on rare-earth complexes.
收录类别	SCI
语种	英语
WOS记录号	WOS:000245283100029
公开日期	2010-07-13
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/13919]
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	You H,Li HZ,Fang JF,et al. Improved efficiency by doping blue iridium (III) complex in europium complex-based light-emitting diodes[J]. journal of physics d-applied physics,2007,40(5):1363-1367.
APA	You H,Li HZ,Fang JF,Wang Q,Wang LX,&Ma DG.(2007).Improved efficiency by doping blue iridium (III) complex in europium complex-based light-emitting diodes.journal of physics d-applied physics,40(5),1363-1367.
MLA	You H,et al."Improved efficiency by doping blue iridium (III) complex in europium complex-based light-emitting diodes".journal of physics d-applied physics 40.5(2007):1363-1367.