Highly efficient electroluminescence from green-light-emitting electrochemical cells based on Cu-I complexes

	Highly efficient electroluminescence from green-light-emitting electrochemical cells based on Cu-I complexes
	Zhang QS ; Zhou QG ; Cheng YX ; Wang LX ; Ma DG ; Jing XB ; Wang FS
刊名	advanced functional materials
	2006
卷号	16 期号:9 页码:1203-1208
关键词	CHELATED RUTHENIUM(II) COMPLEX TRIS(2 HIGH-BRIGHTNESS SINGLE-LAYER DEVICES DIODES LIGAND CU(I) 2'-BIPYRIDINE)RUTHENIUM(II) COMPLEXES
ISSN号	1616-301x
通讯作者	zhang qs
中文摘要	the complexes [cu(dnpb)(dpephos)](+)(x-) (dnpb and dpephos are 2,9-di-n-butyl-1,10-phenanthroline and bis[2-(diphenyl-phosphino)phenyl]ether, respectively, and x- is bf4-, clo4-, or pf6-) can form high quality films with photoluminescence quantum yields of up to 71 +/- 7%. their electroluminescent properties are studied using the device-structure indium tin oxide (ito)/complex/metal cathiode. the devices emit green light efficiently, with an emission maximum of 523 nm, and work in the mode of light-emitting electrochemical cells. the response time of the devices greatly depends on the driving voltage, the counterions, and the thickness of the complex film. after pre-biasing at 25 v for 40 s, the devices turn on instantly, with a turn-on voltage of ca. 2.9 v. a current efficiency of 56 cd a(-1) and an external quantum efficiency of 16% are realised with al as the cathode. using a low-work-function metal as the cathode can significantly enhance the brightness of the device almost without affecting the turn-on voltage and current efficiency. with a ca cathode, a brightness of 150 cd m(-2) at 6 v and 4100 cd m(-2) at 25 v is demonstrated. the electroluminescent performance of these types of complexes is among the best so far for transition metal complexes with counterions.
收录类别	SCI
语种	英语
WOS记录号	WOS:000238264800010
公开日期	2010-08-17
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/15867]
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	Zhang QS,Zhou QG,Cheng YX,et al. Highly efficient electroluminescence from green-light-emitting electrochemical cells based on Cu-I complexes[J]. advanced functional materials,2006,16(9):1203-1208.
APA	Zhang QS.,Zhou QG.,Cheng YX.,Wang LX.,Ma DG.,...&Wang FS.(2006).Highly efficient electroluminescence from green-light-emitting electrochemical cells based on Cu-I complexes.advanced functional materials,16(9),1203-1208.
MLA	Zhang QS,et al."Highly efficient electroluminescence from green-light-emitting electrochemical cells based on Cu-I complexes".advanced functional materials 16.9(2006):1203-1208.