Research Article
Influence of Rare Earth Doping on Microstructure and Luminescence Behaviour of Sodium Sulphate
Table 3
Comparison of kinetic parameters for pure, Li-doped, and RE3+-codoped Na2SO4 samples.
| | Phosphor | Activation energy (eV) | Frequency factor (s−1) |
| | Na2SO4 | 0.15 | 4.59 × 109 | | Na2SO4 : | 0.35 | 5.51 × 1013 | | Na2SO4 : Li0.5%, Eu0.5%, Dy0.1% | 0.18 | 1.41 × 1011 | | Na2SO4 : Li0.5%, Eu0.5%, Dy0.2% | 0.19 | 1.20 × 1011 | | Na2SO4 : Li0.5%, Eu0.5%, Dy0.5% | 0.20 | 1.51 × 1012 |
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