Optical characterization of novel matrix glasses based on a CdO:ZnO:V2O5 ternary system
| Autor: | O. Portillo-Moreno, Orlando Zelaya-Angel, Ma. E. Zayas, J. Carmona-Rodriguez, Sergio Jiménez-Sandoval, M. Ceron-Rivera, G. López-Calzada, V.M. Chapela, J. Percino, R. Lozada-Morales |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Ternary numeral system
Absorption spectroscopy business.industry chemistry.chemical_element Infrared spectroscopy Zinc Condensed Matter Physics Electronic Optical and Magnetic Materials Amorphous solid Crystallography chemistry.chemical_compound symbols.namesake Optics chemistry Materials Chemistry Ceramics and Composites Cadmium oxide symbols Absorption (chemistry) business Raman spectroscopy |
| Zdroj: | Journal of Non-Crystalline Solids. 356:374-377 |
| ISSN: | 0022-3093 |
| DOI: | 10.1016/j.jnoncrysol.2009.11.033 |
| Popis: | Based on the adequate proportion in wt.% G 1 (70:10:20), G 2 (50:30:20), G 3 (60:20:20) and G 4 (70:20:10) of the oxides CdO:ZnO:V 2 O 5 , new types of glassy matrices were fabricated. By exploring within the Gibbs ’ s mixture triangle, 36 combinations of the CdO:ZnO:V 2 O 5 reactants were examined and some of these combinations within this triangle yielded transparent and brilliant glasses. The X-ray patterns indicated that the glassy matrices were totally amorphous. In the IR spectra for the G 1 – G 4 glasses, recorded at room temperature, two different bands were observed. One band was localized at 520 cm −1 and was assigned to the presence of unmelted ZnO, one of the starting materials. Another wide band in the interval of 1200–630 cm −1 was assigned to the presence of CdV 2 O 6 , Cd 2 V 2 O 7 , ZnV 2 O 6 and Zn 2 V 2 O 7 compounds. The optical absorption allowed the evaluation of an E g in the region of 4.2–5.4 eV for this group of glasses, and by Raman spectroscopy, changes in vibrations of the V O bond appeared. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect