Optical properties and kinetic parameters in Cu2FeSnS4 thin films prepared by spray pyrolysis

Іvan G. Оrletskyi; Eduard V. Maistruk; Myhailo M. Solovan; Ivan P. Koziarskyi; Dmytro P. Koziarskyi; Pavlo D. Мaryanchuk

doi:10.1117/12.2553223

6 February 2020 Optical properties and kinetic parameters in Cu₂FeSnS₄ thin films prepared by spray pyrolysis

Іvan G. Оrletskyi, Eduard V. Maistruk, Myhailo M. Solovan, Ivan P. Koziarskyi, Dmytro P. Koziarskyi, Pavlo D. Мaryanchuk

Author Affiliations +

Proceedings Volume 11369, Fourteenth International Conference on Correlation Optics; 1136916 (2020) https://doi.org/10.1117/12.2553223
Event: Fourteenth International Conference on Correlation Optics, 2019, Chernivtsi, Ukraine

Abstract

The results of investigation of optical and electrical properties of p-Cu₂FeSnS₄ thin polycrystalline films obtained by spray pyrolysis of aqueous solutions of salts of CuCl₂∙2H₂O, FeCl₃∙6H₂O and SnCl₄∙5H₂O and (NH₂)₂CS are presented. On the basis of the analysis of the light absorption spectra, the optical band gap of the films E_g ≈ 1.72 eV was determined and the dynamics of its change during thermal treatment under low vacuum conditions (0.1 Pa). The conductivity activation energies (E_a = 0.75 eV) and the height of the energy barriers between the grain boundaries (E_b = 0.07 eV) are determined from the temperature dependences of the electrical conductivity.

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Іvan G. Оrletskyi, Eduard V. Maistruk, Myhailo M. Solovan, Ivan P. Koziarskyi, Dmytro P. Koziarskyi, and Pavlo D. Мaryanchuk "Optical properties and kinetic parameters in Cu₂FeSnS₄ thin films prepared by spray pyrolysis", Proc. SPIE 11369, Fourteenth International Conference on Correlation Optics, 1136916 (6 February 2020); https://doi.org/10.1117/12.2553223

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