Summary of the thermal stability of all representative phosphors based on the calculated activation energy.
| Sample | Retained emission intensity at 100 °C (100% at RT) | Activation energy ΔE (eV) |
|---|---|---|
| BaTiO3:xEu3+ (x = 8 mol%) | 70% | 0.272 |
| BaTiO3:xDy3+ (x = 4 mol%) | 90% | 0.387 |
| Ba0.7Sr0.3TiO3:xEu3+ (x = 8 mol%) | 60% | 0.266 |
| Ba0.8Sr0.2TiO3:xDy3+ (x = 4 mol%) | 80% | 0.322 |