| Numéro |
J. Phys. Colloques
Volume 47, Numéro C8, Décembre 1986
EXAFS and Near Edge Structure IV
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|---|---|---|
| Page(s) | C8-395 - C8-398 | |
| DOI | https://doi.org/10.1051/jphyscol:1986878 | |
EXAFS and Near Edge Structure IV
J. Phys. Colloques 47 (1986) C8-395-C8-398
DOI: 10.1051/jphyscol:1986878
1 Department of Chemistry, Manchester University, GB-Manchester M13 9PL, Great-Britain
2 Daresbury Laboratory, GB-Warrington, WA4 4AD, Great-Britain
3 Department Elec. Engineering, Edinburgh University, GB-Edinburgh EH9 3JL, Great-Britain
J. Phys. Colloques 47 (1986) C8-395-C8-398
DOI: 10.1051/jphyscol:1986878
SILVER IN PHOTODOPED ARSENIC SULFIDE FILMS : AN EXAFS STUDY
A.T. STEEL1, 2, A.P. FIRTH3, A.E. OWEN3, P. EWEN3 et G.N. GREAVES21 Department of Chemistry, Manchester University, GB-Manchester M13 9PL, Great-Britain
2 Daresbury Laboratory, GB-Warrington, WA4 4AD, Great-Britain
3 Department Elec. Engineering, Edinburgh University, GB-Edinburgh EH9 3JL, Great-Britain
Résumé
Nous avons mesurés le K-edge EXAFS de l'argent pour un nombre de films du sulfure d 'arsenic photodopé et déterminés la distance de coordination d'argent à soufre. C'est très semblable à la verre Ag25As25S50, comme le XANES. L'on a observé la séparation des phases dans quelques films par l'apparence d'une seconde couche dans la transformation de Fourier.
Abstract
We have measured the silver k-edge EXAFS for a number of photodoped arsenic sulphide films and determined the silver-sulphur coordination distance. This is very similar to the Ag25As25S50 glass, as is the near-edge region. Phase separation has been observed in some films by the appearance of a second shell in the Fourier transform.