Physics of the Solid State

, Volume 59, Issue 4, pp 801–807 | Cite as

Structural, optical, and electrical properties of Cu2SnS3 thin films produced by sol gel method

  • I. G. OrletskiiEmail author
  • M. N. Solovan
  • F. Pinna
  • G. Cicero
  • P. D. Mar’yanchuk
  • E. V. Maistruk
  • E. Tresso
Surface Physics and Thin Films


The structural, optical, and electrical properties of p-type Cu2SnS3 thin films produced by the deposition of a dimethylsulfoxide-based sol gel solution using the centrifugation on substrates with subsequent heat treatment of the layers formed have been studied. The conditions of formation of the films using low-temperature short-time treatments in open atmosphere and a final annealing in a low vacuum (0.1 Pa) have been analyzed. The crystallite sizes D ~ 42 nm in the polycrystalline films have been found using X-ray phase analysis. Their compositions have been confirmed using the Raman spectra and the energy-dispersive X-ray analysis. The optical forbidden band width of direct allowed (E g d ~ 1.25 eV) and direct forbidden (E g df ≈ 0.95 eV) optical transitions have been determined as a result of the light transmission and absorption. Based on the study of the electrical properties using a model of polycrystalline materials, the validity of the produced films with resistivity ρ ≈ 0.21 Ω cm, the hole concentration p 0 ≈ 1.75 × 1019 cm–3, and the effective mobility μ p ≈ 1.67 cm2/(V s) for manufacturing solar cells.


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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • I. G. Orletskii
    • 1
    Email author
  • M. N. Solovan
    • 1
  • F. Pinna
    • 2
  • G. Cicero
    • 2
  • P. D. Mar’yanchuk
    • 1
  • E. V. Maistruk
    • 1
  • E. Tresso
    • 2
  1. 1.Yuriy Fedkovych Chernivtsi National UniversityChernivtsiUkraine
  2. 2.Politecnico di TorinoTorinoItaly

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