Synthesis and Photoluminescence Properties of Tb3+doped Sr2P2O7 Phosphors

In this paper, synthesis and photoluminescence (PL) properties of rare earth Tb3+dopedSr2P2O7 Phosphors were prepared by conventional solid state reaction method and photoluminescence (PL) properties of samples were examined for proper excitation. All the samples were synthesized by high-temperature SSR- method. The X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy characterization confirms the formation of pure α-phase with crystallized in orthorhombic structure of samples. Surface morphology of the present phosphor has been studied by scanning electron microscope (SEM).The PL emission spectra of all samples exhibit characteristic green emission peaks of Tb3+ where the peak at 545 nm has the highest emission intensity for Tb3+ concentration of 5.0 mol%.The entire study reveals that the present phosphor has promising applications in the lamp industry especially for solid state lighting (mercury free excited lamp phosphor) and UV LEDs.