FWHM of the luminescence peak at 976 nm of Ce1−xYbxO2 nanomaterials (x ≤ 0.05) annealed at 1273 K measured at RT and at 4 K and FWHM of the luminescence of the dominant peaks of the nanomaterials (x ≥ 0.15) annealed at 773 K and 1273 K.
| Sample | FWHM976 (nm) | FWHMdominant peak (nm) | ||
|---|---|---|---|---|
| RT_773 | 4 K_773 | RT_1273 | 4 K_1273 | |
| Ce0.996Yb0.004O2 | — | — | 5.8 ± 0.1 | 1.8 ± 0.0 |
| Ce0.99Yb0.01O2 | — | — | 6.1 ± 0.1 | 2.0 ± 0.0 |
| Ce0.97Yb0.03O2 | — | — | 7.4 ± 0.2 | 2.1 ± 0.0 |
| Ce0.95Yb0.05O2 | — | — | 9.3 ± 0.3 | 3.0 ± 0.8 |
| Ce0.85Yb0.15O2 | 12.1 ± 0.6 | 12.4 ± 0.2 | 4.5 ± 0.1 | 3.9 ± 0.2 |
| Ce0.82Yb0.18O2 | 15.7 ± 0.7 | 12.7 ± 0.1 | 4.7 ± 0.1 | 3.9 ± 0.2 |
| Ce0.78Yb0.22O2 | 16.7 ± 1.1 | 12.8 ± 0.1 | 4.8 ± 0.2 | 4.5 ± 0.3 |