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Optimal conditions of pH, composition, and temperature in synthesis of CdS thin films by chemical bath deposition technique

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Abstract

Variation of the conditions in the synthesis of thin films of CdS is presented. Using a chemical bath deposition (CBD) methodology, parameters such as the ratio of the molar concentration of cadmium and sulfur ions, pH, and temperature were modified in deposition times of 120 min and on glass substrates. Low Cd/S molar ratios favor thin film thickness. This is verified by optical characterization by a comparison of the transmission spectra. It was also found that the possible tuning of the gap energy is in the range of 2.52 to 2.63 eV, controlling the Cd/S molar ratio.

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Authors and Affiliations

  1. Tecnológico Nacional de México / Instituto Tecnológico de Querétaro (TecNM/ITQ), Querétaro, México

    Y. Jiménez-Flores, J. Lefranc-Cabrera, P. D. Gómez-Barrales, J. A. Perez-Orozco, C. G. Flores-Hernández, G. Pineda-Chacón & M. B. Ortuño-López

  2. Cátedras CONACyT - Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada Unidad Legaria (CICATA), Mexico, Mexico

    U. Nogal-Luis

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  1. Y. Jiménez-Flores
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  2. J. Lefranc-Cabrera
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  3. P. D. Gómez-Barrales
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  4. J. A. Perez-Orozco
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  5. C. G. Flores-Hernández
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  6. G. Pineda-Chacón
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  7. U. Nogal-Luis
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  8. M. B. Ortuño-López
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Correspondence to M. B. Ortuño-López.

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Jiménez-Flores, Y., Lefranc-Cabrera, J., Gómez-Barrales, P.D. et al. Optimal conditions of pH, composition, and temperature in synthesis of CdS thin films by chemical bath deposition technique. MRS Advances 6, 1001–1004 (2021). https://doi.org/10.1557/s43580-021-00181-3

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  • DOI: https://doi.org/10.1557/s43580-021-00181-3

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