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The Effect of CZTS Ultrathin Film Thickness on the Electrical Characteristic of CZTS/Si Heterojunction Solar Cells in the Darkness and under the Illumination Conditions

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Abstract

In this study, Ag/CZTS/Si/Al heterojunction solar cells were produced depending on some parameters of CZTS ultrathin active film layers grown on a n-Si wafer by PLD technique. CZTS ultrathin films have been produced as a function of the number of laser pulses and then annealed in a tube oven as a function of sulfurization temperature. The crystal structure, the optical and morphological properties of grown&annealed CZTS ultrathin films were examined by XRD, UV-vis spectra, AFM, respectively. The electrical characteristics of CZTS heterojunction solar cell in the darkness, which were investigated by the conventional J-V Method, Cheung Cheung Method and Norde Method. As the thickness of CZTS ultrathin films increased, the forward current of CZTS heterojunctions increased and their ideality factor, serial resistance and barrier height decreased. Also, the efficiency of Ag/CZTS/Si/Al heterojunction solar cells have been examined and characterised as a function of CZTS ultrathin film thickness under the illumination conditions. J-V curves of CZTS heterojunction solar cells were determined under AM 1.5 solar radiation in 80 MW/cm2, all CZTS heterojunction solar cells have exhibited the photovoltaic behaviour. Jsc, Voc, FF, η parameters of Ag/CZTS/Si/Al heterojunction solar cells were measured, interpreted and compared with each other.

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Acknowledgements

Authors kindly would like to thank,

- Scientific and Technical Research Council of Turkey (TUBITAK) for financial support via Grant No. 1649B031503748,

- Selçuk University, High Technology Research and Application Center and.

Selçuk University, Laser Induced Proton Therapy Application and Research Center for supplying with Infrastructure and.

- Selçuk University, Scientific Research Projects Coordination (BAP) Unit for grands via projects with references of 18401178, 18401124 and 15201070.

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Authors and Affiliations

  1. Faculty of Science, Department of Physics, University of Selçuk, 42031, Selçuklu, Konya, Turkey

    Serap Yiğit Gezgin, Amina Houimi & Hamdi Şükür Kiliç

  2. Ahmet Keleşoğlu Education Faculty, Chemistry Education Department, Necmettin Erbakan University, Meram, Konya, Turkey

    Bedrettin Mercimek

  3. Directorate of High Technology Research and Application Center, University of Selçuk, 42031, Selçuklu, Konya, Turkey

    Hamdi Şükür Kiliç

  4. Directorate of Laser Induced Proton Therapy Application and Research Center, University of Selçuk, 42031, Selçuklu, Konya, Turkey

    Hamdi Şükür Kiliç

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  1. Serap Yiğit Gezgin
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Gezgin, S.Y., Houimi, A., Mercimek, B. et al. The Effect of CZTS Ultrathin Film Thickness on the Electrical Characteristic of CZTS/Si Heterojunction Solar Cells in the Darkness and under the Illumination Conditions. Silicon 13, 3555–3567 (2021). https://doi.org/10.1007/s12633-020-00847-x

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