Triphenylamine-functionalized rhenium (I) complex as a highly efficient yellow-green emitter in electrophosphorescent devices

被引：37
作者：
Liu, Chunbo [1 ]
Li, Jiang
Li, Bin
Hong, Ziruo
Zhao, Feifei
Liu, Shiyong
Li, Wenlian
机构：
[1] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Key Lab Excited State Proc, Changchun 130033, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
[3] Jilin Univ, State Key Lab Integrated Optoelect, Changchun 130023, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 24期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1063/1.2408638
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A complex (3-ethyl-2-(4(')-triphenylamino)imidazo[4,5-f] 1,10-phenanthroline) Re(CO)(3)Br functionalized by a hole-transport group triphenylamine was used to fabricate organic light-emitting devices (OLEDs). A current efficiency up to 17.6 cd/A corresponding to a power efficiency of 9.2 ml/W and a peak brightness as high as 6500 cd/m(2) were obtained. These results represent the best values reported for OLEDs based on rhenium complexes. Enhanced carrier injection capability of Re complex and efficient charge-trapping formation followed by triplet exciton confinement in the emissive layer make for the outstanding electrophosphorescent performances. (c) 2006 American Institute of Physics.
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