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Intensity ratios of Eu2+/Eu3+ in Ca0.94AlSiN3:0.06Eu2+@Eu2O3, Ca0.94AlSiN3:0.06Eu2+@EuN and Ca0.94AlSiN3:0.06Eu2+@EuB6.
| XPS Measurements | Intensity of Eu2+ | Intensity of Eu3+ | Eu2+/Eu3+ |
|---|---|---|---|
| Ca0.94AlSiN3:0.06Eu2+@EuN(3d3/2) | 0.8847 | 0.9333 | 9.48/10 |
| Ca0.94AlSiN3:0.06Eu2+@EuN(3d5/2) | 0.8596 | 0.9854 | 8.72/10 |
| Ca0.94AlSiN3:0.06Eu2+@EuB6(3d3/2) | 0.9166 | 0.9633 | 9.52/10 |
| Ca0.94AlSiN3:0.06Eu2+@EuB6(3d5/2) | 0.8817 | 1. 0000 | 8.82/10 |
