Investigations on luminescence behaviour of Ce-activated BaMgAl O phosphor.

Luminescence

School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur, (C.G.), Pin Code - 492010, India.

Published: November 2016

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 P6 /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 Ce 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.

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http://dx.doi.org/10.1002/bio.3107DOI Listing

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