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Vol. 34 No. 5 (2022): Vol 34 Issue 5, 2022

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Influence of Flux on the Structural and Thermoluminescence Properties of Y2SiO5:Dy3+ Nanophosphors for Dosimetric Applications

https://doi.org/10.14233/ajchem.2022.23461
K. Dhanalakshmi
Department of Physics, New Horizon College of Engineering, Bangalore-560103, India
A. Jagannatha Reddy
Department of Physics, M.S. Ramaiah Institute of Technology, Bangalore-560054, India
V. Revathi
Department of Physics, New Horizon College of Engineering, Bangalore-560103, India

Corresponding Author(s) : K. Dhanalakshmi

dhanalakshmi.kurakula@gmail.com

Asian Journal of Chemistry, Vol. 34 No. 5 (2022): Vol 34 Issue 5, 2022

Abstract

Potassium nitrate (KNO3) and ammonium chloride (NH4Cl) flux were added during the combustion synthesis of Y2SiO5:Dy3+ (9 mol %) nanophosphors, which influenced its structure, morphology and thermoluminescent properties. Reduction in the crystallite size to ~ 7 nm observed using XRD analysis. Surface morphology enhanced in terms of its texture. Thermoluminescence analysis of the prepared phosphors irradiated with gamma dose over a range of 500 Gy – 4 KGy at a constant heating rate 3 ºC s–1 have been carried out. Kinetic parameters were evaluated by Chens method and activation energy was found to be 1.01-1.3 eV. Flux addition resulted in creation of large number of charge carriers and hence the material become the potential for dosimetry applications.

Keywords

Yttrium silicate Potassium nitrate Ammonium chloride Thermoluminescence Dosimetry Flux effect
Dhanalakshmi, K., Jagannatha Reddy, A., & Revathi, V. (2022). Influence of Flux on the Structural and Thermoluminescence Properties of Y2SiO5:Dy3+ Nanophosphors for Dosimetric Applications. Asian Journal of Chemistry, 34(5), 1284–1290. https://doi.org/10.14233/ajchem.2022.23461
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