Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7900299 | Journal of Non-Crystalline Solids | 2018 | 7 Pages |
Abstract
The binary MoO3 - TeO2 glasses doped with 0-0.5 mol% of Ni2 + ions were prepared by the melt-quenching technique using inorganic salts and acids as starting materials. The optical transmission spectra of all prepared glasses were studied in the wavelength range 0.5-6 μm. Two broad bands with maxima at 744 and 1318 nm are produced by octahedrally coordination nickel ions. The crystal field splitting energy and Racah parameters of Ni2 + ions were calculated by using the Tanabe-Sugano diagrams. The spectral dependence of the specific absorption coefficient of nickel was established and the value of the integral absorption coefficient in the wavelength range 0.6-2.8 μm was found as (14.5 ± 0.3) cmâ 2/( ppmwt). The value of the optical band gap is observed to decrease while the refractive index and Urbach's energy increase with increase in the concentration of Ni2 + in the glasses.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
O.A. Zamyatin, M.F. Churbanov, V.G. Plotnichenko, E.V. Zamyatina,