Abstract
Highly organic soluble Ir(III) complexes with 9-(6-phenyl-pyridin- 3ylmethyl)-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 electrophos-phorescent polymer light-emitting diodes (PLEDs). The device performances were observed to be relatively better or comparable with those of IKppy)s based poly(ATvinylcarbazole) 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.
| Original language | English |
|---|---|
| Pages (from-to) | 7419-7428 |
| Number of pages | 10 |
| Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
| Volume | 46 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 2008 Nov 15 |
Keywords
- Absorption
- Crystal structures
- Electrophosphorescence
- Host-guest systems
- Iridium(III) complex
- Luminescence
- Miscibility
- Photoluminescence
- Solubility
- Triplet energy transfer
ASJC Scopus subject areas
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry