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

doi:10.1088/0022-3727/40/5/009

CORC > 化学研究所 > 中国科学院化学研究所

	Improved efficiency by doping blue iridium (III) complex in europium complex-based light-emitting diodes
	You, Han; Li, Huazhi; Fang, Junfeng; Wang, Qi; Wang, Lixiang; Ma, Dongge
刊名	JOURNAL OF PHYSICS D-APPLIED PHYSICS
	2007-03-07
卷号	40 期号:5 页码:1363-1367
ISSN号	0022-3727
DOI	10.1088/0022-3727/40/5/009
英文摘要	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.
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000245283100029
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/61855]
专题	中国科学院化学研究所
通讯作者	Ma, Dongge
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Grad Sch, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	You, Han,Li, Huazhi,Fang, Junfeng,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, Han,Li, Huazhi,Fang, Junfeng,Wang, Qi,Wang, Lixiang,&Ma, Dongge.(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, Han,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.