Luminescence properties of Gd1−Bi Ta7O19 (0<x≤1)

Abstract The luminescence properties of Bi 3+ in GdTa 7 O 19 solid solution were systematically examined. The samples were synthesized by a solid state reaction. The properties studied in this work were the excitation, luminescence, and diffuse reflection spectra. Upon UV excitation, the maximum of emission band of Bi 3+ shifted from 480 to 505nm for Gd 1− x Bi x Ta 7 O 19 . The excitation and emission spectra of Bi 3+ emission in Gd 1− x Bi x Ta 7 O 19 (0 x ≤1) consist of broad band.