Pure Sr2CeO4 phosphor and Sr2CeO4 doped with europium (0.5, 1.0, 1.5, 2.0, 4.0 mol%) phosphor were synthesized by the sol-gel method. X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectra were used to characterize the pure Sr2CeO4 and Sr2CeO4:Eu 3+ nano phosphor. It is a well-known fact that the crystallinity of the material increases with increase in the calcination temperature. Hence to study the effect of calcination temperature on the sol-gel synthesized phosphor (Sr2CeO4:Eu 3+ (2.0mol%)), the phosphor was fired at various temperatures 1000 °C, 1100 °C and 1200 °C for 2hrs respectively and it was found that the photoluminescence intensity of Sr2CeO4:Eu 3+ nano phosphor increases with the increase of calcination temperature. Sr2CeO4:Eu 3+ nano phosphor has an excellent colour tunability of red light with different concentration of europium and hence it can be a promising candidate for LED lighting Applications.
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