Abstract
Thermally stable high triplet energy host materials based on a fluorenobenzofuran (BFF) core were synthesized and the device performances of green phosphorescent organic light-emitting diodes were investigated. BFF was designed as the electron transport type core with improved thermal stability. Two host materials based on the BFF core showed a high glass transition temperature over 140 °C and high triplet energy above 2.70 eV. They were used as the host materials for green phosphorescent organic light-emitting diodes and a high quantum efficiency close to 20% was achieved.
| Original language | English |
|---|---|
| Pages (from-to) | 10537-10541 |
| Number of pages | 5 |
| Journal | Journal of Materials Chemistry |
| Volume | 22 |
| Issue number | 21 |
| DOIs | |
| State | Published - 7 Jun 2012 |
| Externally published | Yes |