Maximum temperature sensor sensitivities of different RE3+ doped/codoped systems calculated using the FIR algorithm.
| Rare earth doped materials | Maximum sensitivity (K−1) | Temperature range (K) | Excitation wavelength | References |
|---|---|---|---|---|
| Er/Yb:Na0.5Bi0.5TiO3 | 3.1 × 10−3 K−1 at 400 K | 163–613 K | 980 nm | 55 |
| Gd2O3:Er3+-Yb3+ | 3.9 × 10−3 K−1 at 300 K | 300–900 K | 976 nm | 56 |
| Er:BZT-BCT | 4.4 × 10−3 K−1 at 443 K | 200–443 K | 980 nm | 57 |
| Er3+/Yb3+ codoped oxyfluoride glass | 3.9 × 10−3 K−1 at 513 K | 291–450 K | 980 nm | 58 |
| CaTi4O9:Er3+, Yb3+ | 4.9 × 10−3 K−1 at 323 K | 303–553 K | 980 nm | 59 |
| CaMoO4:Ho–Yb–Mg | 6 × 10−3 K−1 at 353 K | 303–543 K | 980 nm | 60 |
| Na0.82Ca0.08Er0.16Y0.853F4:Er3+ | 2.2 × 10−3 K−1 at 338 K | 5–300 K | 1.54 μm | 61 |
| CaTiO3:Er3+, Yb3+ | 6.71 × 10−3 K−1 at 383 K | 298–623 K | 980 nm | Present work |