A mononuclear red-emitting zwitterionic iridium(III) complex, bis(1-(phenyl)isoquinolinato) iridium(III) (2,2(')-bipyridine-3-ol-3(')-olate), was synthesized and used as a triplet emitter doped in a polymeric host in solution-processed electrophosphorescent light-emitting diodes. We achieved a high luminous effieciency (LE) of 12.62 cd/A with fast response time in the device using the dopant unlike in the device using cationic irridium(III) phosphorescent materials. A hole transporting polymeric interlayer between the anode and the emitting layer improved the LE and decreased the exciton quenching at high electric fields. (C) 2007 American Institute of Physics.
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Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
Gong, X
;
Ostrowski, JC
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机构:Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
Ostrowski, JC
;
Moses, D
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机构:Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
Moses, D
;
Bazan, GC
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机构:Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
Bazan, GC
;
Heeger, AJ
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机构:Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
机构:
Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USAUniv Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
Gong, X
;
Ostrowski, JC
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
Ostrowski, JC
;
Moses, D
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
Moses, D
;
Bazan, GC
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA
Bazan, GC
;
Heeger, AJ
论文数: 0引用数: 0
h-index: 0
机构:Univ Calif Santa Barbara, Ctr Polymer & Organ Solids, Santa Barbara, CA 93106 USA