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Relationship between dopant energy levels and device performances of triplet mixed host devices

Cited 4 time in Web of Science Cited 5 time in Scopus
Authors
Kim, Sung Hyun; Jang, Jyongsik; Lee, Jun Yeob
Issue Date
2008-07-10
Publisher
Elsevier
Citation
Journal of Luminescence 128 (2008) 2035–2037
Keywords
Triplet mixed hostDopant energy levelQuantum efficiency
Abstract
Device performances of phosphorescent organic light-emitting diodes (PHOLEDs) with triplet mixed
host structure were correlated with dopant energy levels and mixed host composition. A mixed host of
4,40,400-tris-(N-carbazolyl)triphenylamine (TCTA) and spirobifluorene type host (PH1) was used and
three different dopants with different bandgap were doped in the mixed host. Optimum quantum
efficiency was obtained in TCTA:PH1 (50:50) mixed host device in the case of green dopants, while the
optimum host composition for red and orange dopants was TCTA:PH1 (25:75).
ISSN
0022-2313
Language
English
URI
http://hdl.handle.net/10371/49649
DOI
https://doi.org/10.1016/j.jlumin.2008.07.002
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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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