White light emission of Mn-doped SnO-ZnO-P_2O_5 glass containing no rare earth cation

Abstract

The authors have demonstrated white light emission of rare earth (RE)-free Mn-doped SnO-ZnO-P_2O_5 glass. The RE-free glass shows white light emission with a high value of quantum efficiency (QE) comparable to conventional crystalline phosphor. It is notable that the high QE value is attained for RE-free transparent glass, and the broad emission can be continuously tuned by both the amount of activator and the composition of the glass. Since this glass possesses low-melting property, we emphasize that the glass phosphor will lead to the development of a novel inorganic white-light-emitting device in combination with a solid state UV light-emitting source.