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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
Kim, Sung Hyun; Jang, Jyongsik; Lee, Jun Yeob
Issue Date
2007-03-27
Publisher
Elsevier
Citation
Synthetic Metals 157 (2007) 228–230
Keywords
SensitizerHigh efficiencyRed 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
URI
http://hdl.handle.net/10371/61902
DOI
https://doi.org/10.1016/j.synthmet.2007.02.001
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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