Akademik Veri Yönetim Sistemi
Journal of Alloys and Compounds, cilt.1057, 2026 (SCI-Expanded, Scopus)
This study reports the high-temperature solid-state synthesis of strontium metasilicate (SrSiO3)-based luminescence ceramics for passive radiation dosimetry applications and their optically stimulated luminescence (OSL) properties enhanced with dopant ions. Undoped and doped SrSiO3 ceramics were successfully prepared and the crystal structures and phase purity of the samples were investigated by X-ray diffraction (XRD), while their morphologies were investigated by scanning electron microscopy (SEM). XRD patterns showed that all samples crystallized in the monoclinic SrSiO3 phase without secondary phases and that the targeted dopant elements were incorporated into the structure. Ce3+ ions were substituted into the Sr2+ regions, while the charge imbalance in the structure was compensated by the incorporation of Li+ ions. The luminescence characteristics of undoped and doped samples were systematically investigated using thermoluminescence (TL), OSL, and radioluminescence (RL) techniques. The results showed that Ce3+ doping enhanced the TL and OSL signals, while Ce3+/Li+ co-doping significantly increased luminescence signals and improved the thermal and optical stability of the traps. Concentration quenching studies revealed optimum OSL signals for 0.1 % and 5 % Ce and Li concentrations, respectively. Analysis of the OSL decay curves and TL–OSL correlations demonstrated that multiple trapping levels contribute to the OSL signal. Dosimetric evaluations showed that the final product SrSiO3:Ce0.1%,Li5% ceramic exhibited good reproducibility, acceptable extinction behavior, and nonlinear but stable dose-response curves over a wide dose range. This study demonstrates that Ce3+/Li+ co-doped SrSiO3 ceramics can be considered promising candidate materials for OSL dosimetry.