Investigations on luminescence behaviour of Ce-activated BaMgAl10O17phosphor

The present paper describes the synthesis of cerium-doped barium magnesium aluminate phosphor by combustion method. The crystal structure of synthesized phosphor belongs to the P63/mmc space group and is related to the β-alumina structure. The photoluminescence emission spectra exhibited a broad peak centered at 440 nm showing the Ce3+ emission. The thermoluminescence properties of phosphors under ultraviolet irradiation were investigated. The activation energy was calculated by Chen's empirical method. Fracto-mechanoluminescence properties were also investigated. The phosphor showed mechanoluminescence (ML) properties without irradiation and the ML intensity increased linearly with the impact height of the moving piston. Therefore this compound may have a use as a damage sensor. Copyright © 2016 John Wiley & Sons, Ltd.