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The Eu/Si molar ratios of the Eu3+-doped mesoporous silica thin films estimated from the solution compositions and determined by the ICP-AES analysis
| Sample | Eu/Si molar ratios estimated from the solution compositions (%) | Eu/Si molar ratios determined by the ICP-AES analysis (%) |
|---|---|---|
| 1 | 0.5 | 0.44 |
| 2 | 1.0 | 0.87 |
| 3 | 3.0 | 2.57 |
| 4 | 4.0 | 3.41 |
| 5 | 6.0 | 5.24 |
