抄録
Abstract: CaAl_2O_4:Eu^<2+> phosphor crystals co-doped with auxiliary activators such as Sc, Y, La, Ce, Pr, Nd have been grown by floating zone (FZ) technique. photoluminescence spectrum (PL), time resolved PL and thermally stimulated luminescence (TSL) are evaluated to clarify the long phosphorescence mechanism. Trap depth and the densities of the trapped carriers vary with the auxiliary activator elements.
