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Formation of cadmium sulfide (CdS) nanofilm on a Cd(OH)2/SiO2 precursor layer

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Abstract

Dense thin nanostructured films of cadmium sulfide CdS obtained by chemical deposition from aqueous solutions are strongly bound to a substrate due to the formation of cadmium hydroxide Cd(OH)2 in the system. By X-ray reflectometry and grazing incidence diffraction it is found that at the beginning of the deposition a dense Cd(OH)2/SiO2 layer is produced on the surface of a silicon or glass substrate. This layer is formed through the atomic-layer adsorption of crystalline 1–3 nm thick Cd(OH)2 film by the oxygencontaining substrate surface. During sulfidation of this cadmium-containing substrate layer, a surface nucleation layer of CdS/Cd(OH)2/SiO2 forms, which provides the growth, denseness, and strong adhesion to the substrate of nanostructured CdS film with a disordered structure. According to the obtained experimental data, a “hydroxide scheme” of film deposition is confirmed and refined, and the stages of CdS nanofilm formation are determined.

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Authors and Affiliations

  1. Institute of Solid State Chemistry, Ural Division, Russian Academy of Sciences, Ekaterinburg, Russia

    A. S. Vorokh, N. S. Kozhevnikova & A. A. Rempel

  2. Lehrstühl für Kristallographie und Struktur Physik, Staudstr. 3, Universität Erlangen-Nürnberg, 91058, Nürnberg, Germany

    A. A. Rempel & A. Magerl

Authors
  1. A. S. Vorokh
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  2. N. S. Kozhevnikova
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  3. A. A. Rempel
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  4. A. Magerl
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Correspondence to A. S. Vorokh.

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Original Russian Text Copyright © 2010 by A. S. Vorokh, N. S. Kozhevnikova, A. A. Rempel, and A. Magerl

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Translated from Zhurnal Strukturnoi Khimii, Vol. 51, No. 6, pp. 1206–1210, November–December, 2010.

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Vorokh, A.S., Kozhevnikova, N.S., Rempel, A.A. et al. Formation of cadmium sulfide (CdS) nanofilm on a Cd(OH)2/SiO2 precursor layer. J Struct Chem 51, 1170–1175 (2010). https://doi.org/10.1007/s10947-010-0177-x

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  • DOI: https://doi.org/10.1007/s10947-010-0177-x

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