Conference paper

Pyrite Photoanode/Redox Electrolyte Interface: Characterization of the Interaction of the Reducing Species with Pyrite Through Temperature Dependence Measurements

Nicolas Alonso-Vante ; Hahn-Meitner-Institut, Abt. Solare Energetik, Glienicker Strafie 100 D-1000 Berlin 39, F. R. G.
Helmut Tributsch ; Hahn-Meitner-Institut, Abt. Solare Energetik, Glienicker Strafie 100 D-1000 Berlin 39, F. R. G.

Abstract

At the semiconductor pyrite photoanode/electrolyte interface, the interaction of the reducing species containing-electrolyte was investigated by temperature dependence measurements. An increase of negative entropy turnover could be related to negatively charged species interacting with the positively charged pyrite surface. Further studies, using the impedance technique in darkness and under illumination, showed that kinetic and diffusion- -like processes control this interface. In the determination of the activation energy both dc and ac techniques lead to compatible results.

Keywords

Hrčak ID:

137381

URI

https://hrcak.srce.hr/137381

Publication date:

28.12.1990.

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