Abstract
Two Zn complexes, bis(2-(oxazol-2-yl)phenolate) zinc (ZnOx2) and bis(2-(1-methyl-1H-imidazol-2-yl)phenolate) zinc (ZnIm2), were synthesized as high triplet energy host materials for green and blue phosphorescent organic light-emitting diodes. High triplet energies of 2.71 eV and 2.84 eV were obtained for ZnOx2 and ZnIm2, respectively. Green and blue phosphorescent devices were fabricated using the ZnOx2 and ZnIm2 host materials and high quantum efficiencies of 23.5% and 20.1% were achieved in green and blue devices, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 374-377 |
| Number of pages | 4 |
| Journal | Dyes and Pigments |
| Volume | 99 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2013 |
| Externally published | Yes |
Keywords
- Blue phosphorescence
- High quantum efficiency
- High triplet energy
- Organometallic compounds
- Triplet host
- Zn complexes