Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1483400 | Journal of Non-Crystalline Solids | 2009 | 5 Pages |
Abstract
Glasses with compositions (60−x) V2O5–40TeO2–xSb2O3 with 0 ⩽ x ⩽ 10 (in mol%) have been prepared using usual melt quenching method. The position of the absorption edge and hence the values of the optical band gap was found to depend on the glass composition. Using the Tauc model, the absorption spectrum fitting method (ASF) was employed to obtain the optical band gap. This method requires only the measurement of the absorbance spectrum of the sample. For each sample, the width of the band tail was determined. Also, the density and glass transition temperature values indicate that the rigidity and packing of the samples increase with increase in Sb2O3 concentration.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Dariush Souri, Kobra Shomalian,