Fabrication of Thin-Film Solar Cells Based on CdTe Films and Investigation of Their Photoelectrical Properties

Abstract

This study presents the results of investigating thin-film CdS/CdTe-based solar cells obtained on glass substrates with In2O3(Sn) and SnO2 frontal electrodes. On the surface of frontal electrodes (In2O3(Sn)/SnO2), 100-nm thick cadmium sulfide films were deposited by vacuum thermal evaporation at a substrate temperature of 200°C, then application of 4–5-μm thick cadmium telluride films by chemical molecular beam deposition at a substrate temperature of 600°C. The obtained heterosystems were subjected to “chloride” treatment, which is a standard technological operation for the fabrication of efficient solar cells based on CdS/CdTe. Photoelectrical characteristics of the resulting solar cells were studied. An increase in the efficiency of thin-film solar cells after heat treatment was shown.

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Funding

The study was carried out as part of an international project, grant no. M/CRDF43/2014-2016.

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Correspondence to K. M. Kuchkarov.

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The authors declare that they do not have a conflict of interest.

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Translated by K. Lazarev

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Razykov, T.M., Kuchkarov, K.M., Ergashev, B.A. et al. Fabrication of Thin-Film Solar Cells Based on CdTe Films and Investigation of Their Photoelectrical Properties. Appl. Sol. Energy 56, 94–98 (2020). https://doi.org/10.3103/S0003701X20020097

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Keywords:

  • chemical molecular beam deposition (CMBD)
  • heterostructure
  • thin-film solar cell
  • efficiency
  • heat treatment
  • dark and light CVC
  • spectral characteristic