Polycrystalline CdS films of good quality could be obtained by electrolysis with rectangular voltages on indium tin oxide/glass substrates from low concentration of CdSO4 and Na2S2O3 in aqueous solution system of pH 3.1 at room temperature (r.t.). The films obtained during 6 s at -1.0 V (versus Ag|AgCl|3 M NaCl) and 6 s at 0.0 V gave stoichiometric CdS with a hexagonal polycrystalline structure with a preferred a-axis orientation. It is suggested that the mass transfer of Cd2+ to the substrate surface governs the deposition rate of CdS. The film deposited at 6 s of -1.2 V and 6 s of 0.0 V gave a c-axis preferred orientation. Incorporation of S into the films was affected by the applied potential, and the reduction of S controls the deposition reaction.
CITATION STYLE
Nishino, J., Chatani, S., Uotani, Y., & Nosaka, Y. (1999). Electrodeposition method for controlled formation of CdS films from aqueous solutions. Journal of Electroanalytical Chemistry, 473(1), 217–222. https://doi.org/10.1016/S0022-0728(99)00250-8
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