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Photoluminescence and electroluminescence of a new blue-emitting homoleptic iridium complex

被引：36
作者：
Chew, S
Lee, CS
Lee, ST [1 ]
Wang, PF
He, J
Li, W
Pan, J
Zhang, XH
Kwong, HL
机构：
[1] City Univ Hong Kong, COSDAF, Hong Kong, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China
[3] Chinese Acad Sci, Tech Inst Phys & Chem, Nanoorgan Photoelect Lab, Beijing 100101, Peoples R China
[4] City Univ Hong Kong, Dept Biol & Chem, Hong Kong, Hong Kong, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 09期
关键词：
D O I：
10.1063/1.2178468
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A new electrophosphorescent material, iridium(III)tris(5-(2,4-difluoro-phenyl)-10,10- dimethyl-4-aza-tricycloundeca-2,4,6-triene), Ir(F-2-mppy)(3), has been synthesized and characterized. Ir(F-2-mppy)(3) shows strong blue emission peaking at 475 nm with a high phosphorescent quantum yield (Phi(PL)) of 0.72 in degassed toluene. Electroluminescent devices with a structure of indium tin oxide (ITO)/NPB (40 nm)/Ir(F-2-mppy)(3)(x):CBP (30 nm)/BCP (6 nm)/Alq(3) (20 nm)/Mg:Ag (10:1) and 15% (10%) exhibit a maximum luminous power efficiency of 9.58 lm/W (7.68 lm/W), CIE coordinates (x=0.18,y=0.36) (x=0.17,y=0.29), and a maximum luminance of similar to 9000 cd/m(2) at 12.5 V (similar to 6000 cd/m(2) at 11.5 V).
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页数：3
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