Structure of the Amorphous System GeSx Analysed by X-ray Spectroscopy Full article
Journal |
Journal of Non-Crystalline Solids
ISSN: 0022-3093 , E-ISSN: 1873-4812 |
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Output data | Year: 1986, Volume: 88, Number: 1, Pages: 43-54 Pages count : 12 DOI: 10.1016/S0022-3093(86)80086-2 | ||||
Tags | GERMANIUM COMPOUNDS | ||||
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Abstract:
The structure of the amorphous GeSx (1 ≤ x ≤ 2) was studied by X-ray spectroscopical methods (X-ray
K. bands and EXAFS of germanium). Particular attention was paid to the a-GeS. Both X-ray bands and EXAFS provide evidence that the transition c-GeS → a-GeS is accompanied by the fundamental change of the coordination of Ge-atoms. In the whole range of x including a-GeS the experimental results are in accordance with the 4-2 coordinated network i.e. of fourfold Ge- and twofold S-sites. It was found that the structure cannot be described by the chemically ordered covalent network model; however the structure is more chemically ordered than it would be according to the random covalent network model. Therefore also for a-GeS2 EXAFS results prove that germanium is not coordinated exclusively by S-atoms but eventually by Ge-atoms as well. Consequently the bonds S-S are in a-GeS2 too.
Cite:
Drahokoupil J.
, Smotlacha O.
, Fendrych F.
, Klokočníková H.
, Kozlov M.A.
Structure of the Amorphous System GeSx Analysed by X-ray Spectroscopy
Journal of Non-Crystalline Solids. 1986. V.88. N1. P.43-54. DOI: 10.1016/S0022-3093(86)80086-2 WOS Scopus РИНЦ
Structure of the Amorphous System GeSx Analysed by X-ray Spectroscopy
Journal of Non-Crystalline Solids. 1986. V.88. N1. P.43-54. DOI: 10.1016/S0022-3093(86)80086-2 WOS Scopus РИНЦ
Dates:
Submitted: | Jan 9, 1986 |
Accepted: | May 2, 1986 |
Published print: | Nov 2, 1986 |
Published online: | Jul 1, 2005 |
Identifiers:
Web of science | WOS:A1986E999800004 |
Scopus | 2-s2.0-0023040401 |
Elibrary | 30969252 |
Chemical Abstracts | 1987:73234 |
Chemical Abstracts (print) | 106:73234 |
OpenAlex | W1985428277 |