Novel SnO2/MnO co-doped phosphate glasses with tunable luminescence properties

► We prepared the SnO2 and MnO codoped phosphate glasses for the first time. ► The glasses exhibit a tunable blue and red luminescence property which results in a blue, white or yellow light emitting depending on the MnO concentration. ► Intensity of the SnO2 blue emission decreases while the MnO red emission increases with the increasing of MnO concentration. ► Both SnO2 and MnO emissions are greatly enhanced with the increasing of SnO2 concentration, resulting in the white light emitting.