Direct synthesis of barium magnesium aluminate blue phosphor particles via a flame route

A flame spray pyrolysis method to directly prepare submicron BaMgAl10O17:Eu2+ (BAM:Eu) phosphor particles was designed. Characteristics such as photoluminescence, crystallinity and particle morphology were investigated for products prepared under various conditions and they were compared with those of the commercial product. The as-prepared and post-annealed powders showed blue emission characteristics at 450 nm.