Table 1 The centroid of the 5d1 and 5d2 excited states, crystal field splitting energy and the Stokes shift within the ground state of 4f and the lowest excited state of 5d1 for Ce3+ in (Y1−xGdx)3Al5O12.
Excitation peak of 5d1 (nm) | Excitation peak of 5d2 (nm) | Crystal field splitting energy Δ12 (eV) | Emission peak (nm) | Stokes Shift within 5d1 and 4f (nm) | |
|---|---|---|---|---|---|
x = 0 | 342 (3.6257 eV) | 456 (2.7193 eV) | 0.9064 | 548 | 92 |
x = 0.1 | 342 (3.6257 eV) | 457 (2.7134 eV) | 0.9124 | 553 | 96 |
x = 0.3 | 340 (3.6471 eV) | 458 (2.7074 eV) | 0.9396 | 565 | 107 |
x = 0.5 | 340 (3.6471 eV) | 459 (2.7015 eV) | 0.9455 | 571 | 112 |
x = 0.7 | 339 (3.6578 eV) | 461 (2.6898 eV) | 0.9680 | 577 | 116 |
x = 0.9 | 338 (3.6686 eV) | 463 (2.6782 eV) | 0.9905 | 578 | 115 |
