Open AccessInfluence of Flux on the Structural and Thermoluminescence Properties of Y2SiO5:Dy3+ Nanophosphors for Dosimetric Applications
Author(s) -
K. Dhanalakshmi,
A. Jagannatha Reddy,
V. Revathi
Publication year - 2022
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2022.23461
Subject(s) - thermoluminescence , chemistry , phosphor , crystallite , potassium , analytical chemistry (journal) , nuclear chemistry , radiochemistry , materials science , luminescence , crystallography , environmental chemistry , optoelectronics , organic chemistry
Potassium nitrate (KNO3) and ammonium chloride (NH4Cl) flux were added during the combustionsynthesis of Y2SiO5:Dy3+ (9 mol %) nanophosphors, which influenced its structure, morphology andthermoluminescent 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 preparedphosphors irradiated with gamma dose over a range of 500 Gy – 4 KGy at a constant heating rate 3 ºCs–1 have been carried out. Kinetic parameters were evaluated by Chens method and activation energywas found to be 1.01-1.3 eV. Flux addition resulted in creation of large number of charge carriers andhence the material become the potential for dosimetry applications.