Influence of Al3+doping on the energy levels and thermal property of the 3.5MgO·0.5MgF2·GeO2:Mn4+ red-emitting phosphor

Influence of Al³⁺doping on the energy levels and thermal property of the 3.5MgO·0.5MgF₂·GeO₂:Mn⁴+ red-emitting phosphor

Yuan Lin-lin, Xiao-Song Zhang, Xu Jian-Ping, Sun Jian, Jin Han, Liu Xiao-Juan, Li Lin-Lin, Li Lan†

Temperature-dependence of (a) FWHMs and (b) normalized emission intensities of the 3.5MgO· 0.5MgF₂· (1− 2 x )GeO₂· x Al₂O₃:0.01Mn⁴⁺ phosphors with x = 0, 0.05, 0.1, and 0.15 mol.