Abstract
Glasses with different molar ratios of (20-x)CaF2―10CaO―5Y2O3―10B2O3―55P2O5: x TiO2 (0 ≤ x ≤ 1 mol%) were synthesized. Structural, optical, luminescent and ionic conductivity studies of the prepared glasses were studied. The investigations on these glass materials had indicated that the titanium ions exhibit two different oxidation states visually Ti3+ and Ti4+. Different physical parameters were calculated on the prepared glasses and reported. The phase transition points such as Tg and Tc of these glasses were analyzed by DTA analysis. The shift in the wavenumbers of different asymmetrical and symmetrical band positions of these glass materials were identified by FT-IR and Raman studies. By increasing the TiO2 concentration in the glass matrix, the decrement in the theoretical and optical basicity values had been observed. This may be due to the covalent bond formation between the dopant and the glass matrix. The crystal field stabilization energy, ligand field parameters such as B and C were calculated. The luminescent properties and ionic conductivity of these glass materials were also studied.
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