Influence of Al3+doping on the energy levels and thermal property of the 3.5MgO·0.5MgF2·GeO2:Mn4+ red-emitting phosphor |
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Yuan Lin-lin, Xiao-Song Zhang, Xu Jian-Ping, Sun Jian, Jin Han, Liu Xiao-Juan, Li Lin-Lin, Li Lan†
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| Raman spectra for Al2O3 content values of 0, 0.05, 0.1, and 0.15 mol at room temperature. The bands denoted as a and b are the asymmetric stretching modes of octahedral MnO6. The band d is due to the stretching vibration of tetrahedral AlO4. The symmetric stretching, antisymmetric stretching, and stretching vibration modes of tetrahedral GeO4 are assigned to c, f, g, e, and h, respectively. |
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