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Highly Soluble Green-Emitting Ir(III) Complexes with 9-(6-Phenyl-pyridin-3-ylmethyl)-9H-Carbazole Ligands and Their Application to Polymer Light-Emitting Diodes
- Authors
- Cho, Min Ju; Kim, Jae Il; Hong, Chang Seop; Kim, Young Min; Park, Young Wook; Ju, Byeong-Kwon; Choi, Dong Hoon
- Issue Date
- 15-11월-2008
- Publisher
- WILEY
- Keywords
- absorption; crystal structures; electrophosphorescence; host-guest systems; iridium(III) complex; luminescence; miscibility; photoluminescence; solubility; triplet energy transfer
- Citation
- JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.46, no.22, pp.7419 - 7428
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
- Volume
- 46
- Number
- 22
- Start Page
- 7419
- End Page
- 7428
- ISSN
- 0887-624X
- Abstract
- Highly organic soluble Ir(III) complexes with 9-(6-phenyl-pyridin-3-ylmethyl)-9H-carbazole were simply synthesized, and the solubility of the new complex was significantly improved when compared with the conventional green-emitting Ir(PPY)(3). Since a carbazole group is tethered through a nonconjugated methylene spacer, the photophysical properties of new complexes are almost identical with those of conventional Ir(ppy)(3). The pure complexes were utilized to prepare electrophosphorescent polymer light-emitting diodes (PLEDs). The device performances were observed to be relatively better or comparable with those of Ir(ppy)(3) based poly(N-vinylcarbazole) systems. The integration of rigid hole-transporting carbazole and phosphorescent complex provides a new route to design highly efficient solution-processable complex for electrophosphorescent PLED applications. (C) 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 7419-7428, 2008
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