Akademik Veri Yönetim Sistemi
APPLIED PHYSICS A: MATERIALS SCIENCE AND PROCESSING, cilt.131, ss.1-19, 2025 (SCI-Expanded)
This study investigates the influence of cerous fluoride (cerium fluoride, CeF3) addition to the TeO2-ZnO-ZnF2 glass system in respect to its relation with UV-Vis, X-ray, and gamma radiation. Four glass samples were synthesized using the melt quenching method. The samples were characterized using XRD, density, optical transmittance, and radiation shielding parameters. XRD results have shown that CeF3-doped zinc-telluride glasses maintain their amorphous structure and exhibit short-range order. As the CeF3 concentration increased, the density rose from 5.496 g/cm3 to 5.5164 g/cm3, and the molar volume increased from 25.1696 cm3/mol to 25.3962 cm3/mol, demonstrating the influence of cerium and fluorine ions on the structure. In the optical analysis of the samples, it was observed that the absorption edge shifted from 365 nm to 532 nm. The optical band gap was 3.046 eV in the undoped sample, while it decreased to 2.004 eV in the glass with 3 mol% CeF3. The Urbach energy reached its minimum value of 0.1480 eV with 1 mol% CeF3, indicating the most regular structure, while it increased to 0.1680 eV with 3 mol% CeF3, signifying an increase in disorder. In terms of radiation shielding properties, the addition of CeF3 increased the linear attenuation coefficient (LAC) from 36655.238 cm−1 to 37225.854 cm−1 at 0.001 MeV, from 245.692 cm−1 to 248.183 cm−1 at 0.015 MeV, and stabilized at approximately 0.2 cm−1 at 15 MeV. The half-value layer (HVL) decreased with the addition of CeF3, from 1.89099E-5 cm to 1.862E-5 cm at 0.001 MeV, from 0.00282 cm to 0.00279 cm at 0.015 MeV, and from 3.46571 cm to 3.44351 cm at 15 MeV. The effective atomic number (Zeff) increased from 28.32531 to 28.32941 at 0.001 MeV, and from 42.00542 to 42.45779 at 0.015 MeV. TZC3 has exhibited the highest shielding performance across the entire energy range (0.001-15 MeV). These glasses can be considered as innovative materials for photonic applications in the UV-Vis range and as environmentally friendly shielding materials in the X-ray/gamma regions.