Spectroscopic and quantum chemical investigation of the boro-bismuthate glass structure
| Autor(en): | Rada, S. Pascuta, P. Bosca, M. Culea, M. Rus, V. Neumann, M. Culea, E. |
Stichwörter: | ALKALI-BORATE GLASSES; BIB3O6; Boro-bismuthate glasses; Density of electronic states; FTIR spectroscopy; Materials Science; Materials Science, Multidisciplinary; Optics; Physics; Physics, Applied; Quantum chemical calculations | Erscheinungsdatum: | 2008 | Herausgeber: | NATL INST OPTOELECTRONICS | Journal: | JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | Volumen: | 10 | Ausgabe: | 12 | Startseite: | 3221 | Seitenende: | 3224 | Zusammenfassung: | The structural properties of the 4Bi(2)O(3)center dot B(2)O(3) glass were investigated by FT-IR spectroscopy and quantum chemical calculations. The main results reveal that the coordination polyhedrons of the bismuth ion from the [BiO(6)] structural units and of the boron ion from the [BO(4)] groups are irregular. Accordingly, the [BiO(6)] and [BO(4)] structural units in the studied glass matrix have a complex structural role that makes possible the formation of the vitreous system. The structure in the vicinity of the Fermi level shows a metallic behavior. |
ISSN: | 14544164 |
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