The photoelectrochemical behaviour of polycrystalline AgIn5Se8

✍ Scribed by G. Razzini; L.Peraldo Bicelli; M. Arfelli; B. Scrosati

• Book ID: 103065974
• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 506 KB
• Volume: 31
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(86)80150-5

✦ Synopsis

Abstraet-Polycrystalline samples of n-type AgIn,Se e were prepared from the constituent element and employed as electrodes in photoeleetrochemical cells . These semiconductor electrodes were characterized by spectral response, Mott-Schottky plots, current-voltage measurements and complex impedance analyses . The polycrystalline n-AgIn,Se s electrodes show a very encouraging photoeleetroehemical behaviour, since capable of offering solar to electrical conversion efficiencies of the order of 3 % . However, stability tests run both under illumination and in the dark, revealed that this interesting photoelectrochemical performance worsened upon time of illumination . This was interpreted in terms of photocorrosion which leads to the formation of a selenium film on the surface of the semiconductor electrode.