Optical and electrochemical study of the sulphide/silver system

✍ Scribed by S. Juanto; R.O. Lezna; A.J. Arvia

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 458 KB
• Volume: 39
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(94)85012-7

✦ Synopsis

Ahstrac-The behaviour of suphide species at a silver/electrolyte interface along with the electrodeposition of thin AgsS Shns have been studied by a combination of electrochemical and in situ optical methods. The potential region between -1.08 and -0.470 V (nhe), prc-peal zone, is mainly characterized by a reversible process, at -0.870 V, overlapping and catalysing the her, ascribed to the formation of an Ag-(SH-), bond. Phase AgsS deposits were found to fit a linear relationship between reflectance, in the blue region, and charge. The oxidation of surface Ag,S (postwave) is readily observed by differential reflectance at potentials positive of the onset of bulk Ag,S formation. The rough silver surface brought about by the reduction of Ag,S allows a strong coupling between photons and surface plasmons.