Wet‐Chemical Preparation of Barium Magnesium Orthophosphate, Ba2Mg(PO4)2:Eu2+, Nanorod Phosphor with Enhanced Optical and Photoluminescence Properties.

Yellow-emitting nanorod phosphors Ba2-2xMg(PO4)2:Eu2x2+ (x = 0.01—0.09) are precipitated from stoichiometric aqueous solutions of Ba(NO3)2, Mg(NO3)2, (NH4)2HPO4, and Eu2O3 (pH 7—11 adjusted with NaOH, 90 °C, 6 h) followed by annealing (5%H2/N2, 600—800 °C, 2 h).