White light emission in alkali metal ion co-doped single host lattice phosphor Sr3B2O6:Ce3+,Eu2+,A+ [A=Li, Na and K]

White light emitting alkali metal ion co-doped single host lattice phosphors Sr 2.955 B 2 O 6 :0.02Ce 3+ , 0.005Eu 2+ , 0.02A + [A=Li, Na and K] were synthesized by high temperature solid state reaction. The synthesized phosphors were characterized by powder X-ray diffraction and Fourier transform infrared spectroscopic techniques. The optical properties were studied using diffuse reflectance UV–vis reflectance spectroscopy and photoluminescence (PL) spectroscopy. The role of Ce 3+ as a sensitizer of Eu 2+ was found from PL excitation results. The PL white light emission depends on the nature of co-doped alkali metal ion charge compensator.