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Deep blue phosphorescent organic light-emitting diodes using a Si based wide bandgap host and an Ir dopant with electron withdrawing substituents

Cited 77 time in Web of Science Cited 76 time in Scopus
Authors
Kim, Sung Hyun; Jang, Jyongsik; Lee, Seok Jong; Lee, Jun Yeob
Issue Date
2008-08-27
Publisher
Elsevier
Citation
Thin Solid Films 517 (2008) 722–726
Keywords
Blue phosphorescent deviceWide triplet bandgapDeep blue
Abstract
A deep blue phosphorescent organic light-emitting diode was developed using a diphenyldi(4-(9-carbazoly)
lphenyl)silane(SiCa) host material and a tris((3,5-difluoro-4-cyanophenyl)pyridine) iridium(FCNIr) dopant
material. Triplet bandgap of the SiCa was 3.0 eV, while triplet bandgap of the FCNIr was 2.8 eV. Light-emitting
performances of blue devices were investigated by changing doping concentration of the FCNIr and a pure
blue emission with a color coordinate of (0.15, 0.19) could be obtained.
ISSN
0040-6090
Language
English
URI
https://hdl.handle.net/10371/48978
DOI
https://doi.org/10.1016/j.tsf.2008.08.156
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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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