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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 81 time in
Web of Science
Cited 81 time in Scopus
- Authors
- Issue Date
- 2008-08-27
- Publisher
- Elsevier
- Citation
- Thin Solid Films 517 (2008) 722–726
- Keywords
- Blue phosphorescent device ; Wide triplet bandgap ; Deep 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
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