Highly Efficient Polymer Light-Emitting Devices Using a New Phosphorescent Material
WANG Jian-Hua, DUAN Lian, WANG Li-Duo, QIU Yong
Organic Optoelectronics Laboratory, Department of Chemistry, Tsinghua University, Beijing 100084
Highly Efficient Polymer Light-Emitting Devices Using a New Phosphorescent Material
WANG Jian-Hua;DUAN Lian;WANG Li-Duo;QIU Yong
Organic Optoelectronics Laboratory, Department of Chemistry, Tsinghua University, Beijing 100084
关键词 ：
78.60.Fi ,
78.55.-m
Abstract ： A new phosphorescent material bis(2-phenyl-benzoimiazole) acetylacetonato iridium ((PBI)2 IrAcac) is designed and synthesized. The absorption, photoluminescence and electroluminescence are measured. The polymer-based light-emitting devices which use polyvinylcarbazole (PVK) as host and (PBI)2 IrAcac as emitter were fabricated. These light-emitting devices show a bright green emission at 548 nm. The device ITO/(PBI)2 IrAcac:PVK/BCP/ Alq3 /Mg:Ag shows a very high efficiency. A peak external quantum efficiency of 21.5 cd/A (5.8%) was obtained at 0.1 mA/cm2 . The maximum brightness is 3840 cd/m2 .
Key words ：
78.60.Fi
78.55.-m
出版日期: 2003-07-01
:
78.60.Fi
(Electroluminescence)
78.55.-m
(Photoluminescence, properties and materials)
引用本文:
WANG Jian-Hua;DUAN Lian;WANG Li-Duo;QIU Yong. Highly Efficient Polymer Light-Emitting Devices Using a New Phosphorescent Material[J]. 中国物理快报, 2003, 20(7): 1141-1143.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2003/V20/I7/1141
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2003, Vol. 20 
