Abstract
Highly efficient solution-processed blue thermally activated delayed fluorescent (TADF) devices are developed by designing soluble blue TADF emitters. The solubility and emission color could be managed by introducing F as an electron withdrawing unit instead of CN. Two soluble blue TADF emitters are synthesized and show a high external quantum efficiency of 20.0% with a color coordinate of (0.16,0.26), and it is the best quantum efficiency reported in solution-processed TADF devices. The device performances of the solution-processed blue TADF devices are comparable to those of vacuum-processed blue TADF devices.
| Original language | English |
|---|---|
| Pages (from-to) | 6786-6792 |
| Number of pages | 7 |
| Journal | Advanced Functional Materials |
| Volume | 25 |
| Issue number | 43 |
| DOIs | |
| State | Published - 18 Nov 2015 |
Keywords
- blue device
- quantum efficiency
- solution device
- thermally activated delayed fluorescence