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Improved efficiency in red phosphorescent organic light-emitting devices using double doping structure
Cited 9 time in
Web of Science
Cited 11 time in Scopus
- Authors
- Issue Date
- 2007-03-27
- Publisher
- Elsevier
- Citation
- Synthetic Metals 157 (2007) 228–230
- Keywords
- Sensitizer ; High efficiency ; Red emission
- Abstract
- Light emission efficiency of red phosphorescent organic light-emitting diodes was improved by using a double doping structure in light emitting
layer. Red devices with tris(2-phenylpyridine) iridium (Ir(ppy)3) as a co-dopant for tris(1-phenylisoquinoline) iridium (Ir(piq)3) showed higher
efficiency than Ir(piq)3 device. Ir(ppy)3 acted as a sensitizer for energy transfer from (4,4 -N,N -dicarbazole)biphenyl to Ir(piq)3 and enhanced
luminance efficiency of Ir(piq)3 by 30%.
- ISSN
- 0379-6779
- Language
- English
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