Site-Selective Occupation for Broadband Upconversion Luminescence in Ca3Y(GaO)3(BO3)4:Yb3+,Mn2+ Phosphors

Room-temperature yellow emission band around 600 nm is obtained in Yb3+ and Mn2+ codoped Ca3Y(GaO)3(BO3)4 with near-infrared laser excitation. The structure analysis, excitation and emission spectr...