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Deposition of PbS Films by Pyrolysis of Atomized Solutions of Lead Thiourea Complexes

  • Inorganic Synthesis and Industrial Inorganic Chemistry
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Abstract

The concentration areas of the existence of various coordination compounds in the PbCl2–(NH2)2CS system were determined by plotting the distribution diagrams and diagrams of the prevalence of complex species in the initial solution. As shown by X-ray diffraction analysis, at deposition temperatures of 300–500°С PbS films crystallize in the cubic system, with the unit cell parameter being independent of the deposition temperature. The band gap of the synthesized PbS was determined by optical spectrometry; it is 0.41–0.45 eV for direct allowed transitions.

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ACKNOWLEDGMENTS

The st udy was performed using the equipment of the Center for Shared Use of the Voronezh State University.

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Authors and Affiliations

  1. Voronezh State University, 394018, Voronezh, Russia

    V. N. Semenov, M. Yu. Krysin & T. V. Samofalova

  2. Burdenko State Medical University, 394036, Voronezh, Russia

    N. M. Ovechkina

  3. Voronezh State Technical University, 394006, Voronezh, Russia

    V. V. Volkov

Authors
  1. V. N. Semenov
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  2. N. M. Ovechkina
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  3. M. Yu. Krysin
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  4. V. V. Volkov
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  5. T. V. Samofalova
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Contributions

V.N. Semenov and N.M. Ovechkina: development of the experimental procedure; N.M. Ovechkina: synthesis of samples of thiourea coordination compounds, evaluation of their solubility, and determination of the elemental composition by scanning electron microscopy; V.V. Volkov: theoretical calculation of the complexation in the PbCl2–(NH2)2CS solution, construction of the distribution diagrams and diagrams of prevalence of various complex species, and also analysis and interpretation of the results jointly with V.N. Semenov and M.Yu. Krysin; T.V. Samofalova: synthesis of PbS films and study of their optical properties, crystal structure, and phase composition.

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Correspondence to T. V. Samofalova.

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The authors declare that they have no conflict of interest.

Additional information

Translated from Zhurnal Prikladnoi Khimii, No. 2, pp. 239–245, February, 2022 https://doi.org/10.31857/S004446182202004X

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Semenov, V.N., Ovechkina, N.M., Krysin, M.Y. et al. Deposition of PbS Films by Pyrolysis of Atomized Solutions of Lead Thiourea Complexes. Russ J Appl Chem 95, 264–269 (2022). https://doi.org/10.1134/S1070427222020057

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