Table 2
Energy difference considerations for different Ln related to environment induced emission quenching.
| ΔE4 (cm−1) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ln [initial energy level (i), final energy level (f)] | ||||||||||
| Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb |
| 6940 [1D2, 1G4] | 5410 [4F3/2, 4I15/2] | 7400 [4G5/2, 6F11/2] | 12300 [5D0, 7F6] | 32200 [6P7/2, 8S7/2] | 15100 [5D4, 7F0] | 7850 [4F9/2, 6F3/2] | 3000 [5S2, 5F5] | 3100 [4S3/2, 4F9/2] | 6650 [1D2, 1G4] | 10240 [2F5/2, 2F7/2] |
| 3910 [3P0, 1D2] | 2200 [5F5, 5I4] | 2850 [4F9/2, 4I9/2] | 6250 [1G4, 3F2] | |||||||
| 6490 [4I13/2, 4I15/2] | 4300 [3H4, 3H5] |