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Proprietes electroniques et electrogalvaniques du sulfure d'argent α domaine d'existence |
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| Authors: | Gaston Bonnecaze Albert Lichanot Simon Gromb |
| Institution: | Faculté des Sciences, B.P. 4322, Abidjan, Côte d''IvoireFrance;Laboratoire de Chimie Organique Physique, Faculté des Sciences Exactes Avenue Philippon, 64000 Pau, France;Laboratoire de Chimie Physique, Université des Sciences et Techniques du Languedoc, Place Eugène Bataillon, 34060 Montpellier Cedex, France |
| Abstract: | The study of electronic and electrogalvanic properties of α silver sulphide has been performed on samples whose non-stoichiometry is controlled by annealing under sulphur pressure or by coulometric titration with the cell Ag/AgI/Ag2+εS/Pt.The data obtained lead to the adoption of an electronic model according to which the Frenkel defects are completly ionised. The homogeneity range has been drawn between 193° and 550°C. It extends to both sides of the stoichiometric composition. |
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