THE EFFECT OF FLUX ON PHOTOLUMINESCENCE PROPERTIES OF SM3+DOPED SR2CEO4 PHOSPHOR

Abstract

The effect of flux on photoluminescence properties of Strontium cerium oxide doped Sm3+ phosphor was studied. The Strontium cerium oxide doped Sm3+ phosphor was synthesized by conventional solid state reaction method at temperature 1200°C for 4h. The powder samples were characterized by X-ray diffraction (XRD), Scanning Electron microscope (SEM) and Fourier transforms infrared spectroscopy (FTIR) spectrum. The X-Ray diffraction pattern reveals the crystallite size and the structure is orthorhombic. Photoluminescence excitation and emission spectra of Sr2CeO4 :Sm3+ (0.5mol %) without and with different fluxes like as Citric acid, Glycin and Urea were recorded at room temperature. The color co-ordinates (CIE-1913chromaticity diagram) for the Sr2CeO4 :Sm3+ (0.5mol %) with different fluxes were x =0.542 and y = 0.334 (without flux), x=0.577 and y=0.336 (with different fluxes). This phosphor has a good potential for applications in display devices.