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Highly efficient red electrophosphorescence from a solution-processed zwitterionic cyclometalated iridium(III) complex
Cited 23 time in
Web of Science
Cited 26 time in Scopus
- Authors
- Issue Date
- 2007-11
- Publisher
- American Institute of Physics
- Citation
- Applied Physics Letters, Vol.91 No.21, p. 211106
- Abstract
- 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.
- ISSN
- 0003-6951
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