Electrodeposited SnS thin films from aqueous solution

摘要: Considerable efforts have been made in recent years the search for low-cost materials solar energy conversion. Among of great interest are polycrystalline metal chalcogenides. These can be synthesized by means low-temperature chemical precipitation or vapour deposition techniques, as described previous works [1, 2]. The may also electrosynthesized, either cathodically [3‐5] anodically [6‐8] from an aqueous nonaqueous medium. Electrochemical methods, especially those performed medium, recently received enormous attention due to their simplicity and cost effectiveness [9‐15]. In addition, they advantages being low temperature processes, with material wastage possibility using lower grade materials. This method has extensively applied preparation CdS CdSe thin films. We report here cathodic electrodeposition another promising compound, tin sulphide (SnS), solution. was carried out on titanium indium-doped oxide (ITO) glass substrate a standard three-electrode cell. A saturated calomel electrode (SCE) sometimes Ag AgCl used reference electrode, while platelet spiral Pt (99.9%) counter electrode. potential controlled EG&G Princeton Applied Research (PAR) Versastat driven model 270 Analysis System software. polished chemically ultrasonically cleaned before used. bath prepared anhydrous SnCl2, sodium thiosulphate (Na2S2O3) disodium ethylenediaminetetra-acetic acid (EDTA) salts N2purged purified water Milli-Q purification system. resultant solution acidified pH about 1.5. continuously deaerated N2 during electrodeposition. Prior electrodeposition, cyclic voltammetry run order determine viable elucidate electrochemical processes at