Synthesis and control the morphology of Sr2P2O7:Eu2+/Eu2+,Mn2+ phosphors by precipitation method

Sr2P2O7:Eu2+/Eu2+,Mn2+ phosphors have been synthesized by the facile and mild precipitation method and they are characterized by X-ray powder diffraction, scanning electron microscopy, photoluminescence spectra. The SEM results indicate the obtained Sr2P2O7:Eu2+ phosphors have the columnar structure and the Sr2P2O7:Eu2+,Mn2+ phosphors is the sphere like. The effects of the stirring and sintering temperature on the morphology of Sr2P2O7:Eu2+/Eu2+,Mn2+ phosphors have been investigated. The photoluminescence spectra of Sr2P2O7:Eu2+ and Sr2P2O7:Eu2+,Mn2+ phosphors showed that the Sr2P2O7:Eu2+ phosphors can be excited by 345 nm and exhibit blue emission around 421 nm and the Sr2P2O7:Eu2+,Mn2+ phosphors can be excited by 355 nm and exhibited the emission around 420 nm and 578 nm showing the white light.