Preparation and properties of CdSiO3: Mn2+, Tb3+ phosphor

CdSiO3: Mn2+, Tb3+ long-lasting phosphor was prepared by the conventional high temperature solid-state method. Effects of the content of Mn2+ and Tb3+ on the luminescent properties of phosphor CdSiO3: Mn2+, Tb3+ were investigated by means of photoluminescence (PL) spectra, the afterglow intensity decay curves and the thermoluminescence (TL) spectra. It was found that when the Mn2+ and Tb3+ dopant-concentrations were 0.4 mol% and 0.8 mol% of Cd2+ ions in CdSiO3, respectively, the luminescence of phosphor prepared had better luminescent property and longer afterglow time. Role of Tb3+ co-doped into CdSiO3: Mn2+ matrix was discussed in this paper.