Fig. 8. Photoluminescence emission (PL) spectra of (a) CaTiO3:2Sm3+/xLi+ (where x = 0, 0.5, 1.0 and 3.0 mol%), (b) CaTiO3:2Sm3+/xK+ (where x = 0, 1.0, 3.0, 5.0 and 7.0 mol%), (c) CaTiO3:2Sm3+/yMg2+ (where y = 0, 1.0, 3.0, 5.0 and 10 mol%), (d) CaTiO3:2Sm3+/yBa2+ (where y = 0, 3.0, 5.0 and 10 mol%), (e) CaTiO3:2Sm3+/zGd3+ (where z = 0, 0.1, 0.5 and 0.7 mol%) and (f) CaTiO3:2Sm3+/zBi3+ (where z = 0, 3.0, 5.0 and 10 mol%) phosphor samples with λex = 407 nm.
