ABSTRACT:
In this study Sm3+ activated CaLa2ZnO5 phosphor was synthesized using a solid-state reaction method. The structural study of this phosphor was conducted using X-ray powder diffraction (XRD) technique. Thermoluminescence (TL) properties were investigated after UV irradiation(254nm).The thermoluminescence glow curve of the CaLa2ZnO5:3mol%Sm3+ showed a prominent peak at 387.15K. Computerized glow curve deconvolution revealed two trapping centers. Furthermore, the essential TL parameters, viz., activation energy (E) and frequency factor (s) were evaluated using Chen’s peak shape method. The results indicate the presence of moderately deeper traps. These findings provide useful information about the trapping behavior of CaLa2ZnO5:Sm3+ and suggest its potential for further investigation in luminescent and dosimetric applications.
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