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Peculiarities in electrical and optical properties of Cu2Zn1–x Mn x SnS4 films obtained by spray pyrolysis

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Abstract

Thin films of Cu2Zn1–x Mn x SnS4 (0 ≤ x ≤ 1) solid solutions have been obtained for the first time by the spray pyrolysis of aqueous salt solutions (copper, zinc, manganese, and tin chlorides and thiourea) at a temperature of T S = 563 K. The films possess specific electric conductivities within σ ≈ 35–422 Ω–1 cm–1 and optical bandgap width E opg that increases with the manganese content from 1.54 eV (x = 0) to 2.25 eV (x = 1). Electrical and optical properties of the obtained films have been studied and analyzed based on a model of polycrystalline materials with grain boundaries. The energy barriers Eb between grains have been determined. The dependence of the bandgap of Cu2Zn1–x Mn x SnS4 (0 ≤ x ≤ 1) solid solutions on the composition has been established using the results of measurements of the optical transmission and absorption coefficients.

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Correspondence to M. N. Solovan.

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Original Russian Text © I.G. Orletskii, P.D. Mar’yanchuk, M.N. Solovan, E.V. Maistruk, D.P. Kozyarskii, 2016, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 42, No. 6, pp. 27–34.

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Orletskii, I.G., Mar’yanchuk, P.D., Solovan, M.N. et al. Peculiarities in electrical and optical properties of Cu2Zn1–x Mn x SnS4 films obtained by spray pyrolysis. Tech. Phys. Lett. 42, 291–294 (2016). https://doi.org/10.1134/S1063785016030263

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  • DOI: https://doi.org/10.1134/S1063785016030263

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