ChemInform Abstract: THE CATHODIC FORMATION OF PHOTOACTIVE CADMIUM SULFIDE FILMS FROM THIOSULFATE SOLUTIONS

Abstract

Photoaktive CdS‐Schichten lassen sich kathodisch aus Cd2+‐ und S2O32‐‐haltigen Lösungen (0.1 M Na2S2O3, 2·10‐3M CdSO4, pH 2.8) gemäß Bruttoreaktion A abscheiden.

Electrodeposition of Semiconductors

“…Cadmium sulfide has been formed from the anodization of the metal in alkaline sulfide solution [100] and in buffered sulfide solution [101,102]. It has been deposited cathodically from a solution containing cadmium and thiosulfate ions [103,104]. Lowering the pH by the addition of dilute H 2 SO 4 was shown to cause the decomposition of the S 2 O 2À 3 to form colloidal sulfur and improve the deposition by elimination of the anodic stripping peak in the cyclic voltammogram compared to that observed with thiosulfate at its natural pH of 6.7.…”

Electrochemical Studies on the Cathodic Electrodeposition of n-type semiconductor CdS thin film from Thiosulfate Acidic Aqueous Solution

“…Cadmium sulfide has been formed from the anodization of the metal in alkaline sulfide solution [7] and in buffered sulfide solution [8,9]. It has been deposited cathodically from a solution containing cadmium and thiosulfate ions [1,10]. CdS has also been deposited on ITO-coated glass potentiostatically [11].…”

Electrodeposition of Nanostructured ZnO Films and Their Photoelectrochemical Properties

“…Among the first studies on the electrodeposition of compounds in the 1980s was the development of methods to prepare thin films of II-IV compound semiconductors [18,19]. For example, electrodeposition of cadmium sulfide from solutions of cadmium salts was carried out by electroreduction of elemental sulfur either dissolved in dimethylsulfoxide or released by decomposition of thiosulfate in water.…”