S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Chemical and Biological Engineering (화학생물공학부) Journal Papers (저널논문_화학생물공학부)
Deep blue phosphorescent organic light-emitting diodes using a Si based wide bandgap host and an Ir dopant with electron withdrawing substituents
- Kim, Sung Hyun; Jang, Jyongsik; Lee, Seok Jong; Lee, Jun Yeob
- Issue Date
- Thin Solid Films 517 (2008) 722–726
- 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.
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