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Luminescence features of dysprosium and phosphorus oxide co-doped lithium magnesium borate glass

Hashim, S. and Mhareb, M. H. A. and Ghoshal, S. K. and Alajerami, Y. S. M. and Saripan, M. I. and Bradley, D. A. (2017) Luminescence features of dysprosium and phosphorus oxide co-doped lithium magnesium borate glass. Radiation Physics and Chemistry, 137 . pp. 45-48. ISSN 0969-806X

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Abstract

Lithium magnesium borate (LMB) glass system co-doped with the oxides of dysprosium (Dy2O3) and phosphorus (P2O5) were synthesized using melt-quenching method. Prepared samples were characterized using various techniques to determine the effects of co-dopants concentration variation on their thermoluminescence (TL) and photoluminescence (PL) properties. TL glow curves of LMB:0.5Dy sample revealed a single prominent peak at Tm=190 °C, where TL intensity was enhanced by a factor of 2.5 with the increase of P2O5 concentration up to 1 mol%. This enhancement was accompanied by a shift in Tm towards higher temperature. Good linearity in the range of 1–100 Gy with linear correlation coefficient of 0.998 was achieved. PL spectra displayed two significant peaks centred at 481 nm and 573 nm. These attractive luminescence features of the proposed glass system may be useful for the development of radiation dosimetry.

Item Type:Article
Uncontrolled Keywords:Borate glass, Dysprosium oxide, Phosphorus oxide, Photoluminescence, Thermoluminescence
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:75719
Deposited By: Widya Wahid
Deposited On:30 Apr 2018 21:11
Last Modified:30 Apr 2018 21:11

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