Multiwavelength Excited White-Emitting Phosphor Dy3+-Activated Ba3Bi(PO4)3.

Powders of the title phosphor are prepared by solid state reaction of a stoichiometric mixture of BaCO3, Bi2O3, NH4H2PO4, and Dy2O3 (500 °C for 5 h and 1250 °C for 3 h).