Abstract
Thermally stable high-triplet-energy hole transport materials based on 8H-indolo[3,2,1-de]acridine core (FPC) were synthesized and the device performances of FPC-based phosphorescent organic light-emitting diodes (OLEDs) were investigated. The FPC-based hole transport materials showed a high triplet energy (above 2.90 eV) and high glass-transition temperature (above 140 °C). The FPC-based hole-transport materials (HTMs) were effective as the HTMs for green and deep-blue phosphorescent OLEDs, and a high quantum efficiency (over 20%) was achieved in both devices.
| Original language | English |
|---|---|
| Pages (from-to) | 4338-4343 |
| Number of pages | 6 |
| Journal | Chemistry of Materials |
| Volume | 23 |
| Issue number | 19 |
| DOIs | |
| State | Published - 11 Oct 2011 |
| Externally published | Yes |
Keywords
- high quantum efficiency
- high triplet energy
- hole transport material
- thermal stability