Abstract
Absorption spectra of Ti3+ were measured for silicate, borate, and phosphate glasses doped with 0.5 mol% Ti2O3.The absorption coefficient at the peak wavelength of the 2T2→2E transition of Ti3+ is used as a parameter showing the relative content of Ti3+ions in glass samples. The effect of glass composition on Ti3+/Ti4+ redox was studied. For multicomponent glasses, a basicity parameter calculated from glass composition is proposed in terms of coulomb force between the cation and the oxygen ion. The value of the absorption coefficient depends on basicity in silicate and borate glasses; however, it is independent of composition in phosphate glasses.
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