Preparation and luminescent properties of Sr2(P2O7):Tb3+, Ce3+

Abstract

We have successfully prepared the luminescent material of Sr₂(P₂O₇):Ce³⁺, Tb³⁺ by the method of the chemical co-precipitation. The phase structure, surface morphology and fluorescence properties were investigated by the scanning electronic microscopy (SEM), X-ray diffraction (XRD), and photoluminescence (PL). It showed that the luminescent material is composed of the pure Sr₂(P₂O₇) phase, and there no phases of rare earth phosphate appeared. The SEM micrographs showed uniform particles with good crystallinity of luminescent material synthesized at 1100°C. PL spectrum showed the luminescent material fluorescence effect best with n_Sr: n_Tb= 100: 1, n_Tb: n_Ce=2:3, sintering at 1100°C, the optimal heat preservation time was 3h.