Research Article | | Peer-Reviewed

Study of the Effect of Interface Defect Layers (IDL1 and IDL2) on CsGeI3 Perovskite Solar Cells by SCAPS 1D Simulation

Received: 3 July 2025     Accepted: 16 July 2025     Published: 31 July 2025
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Abstract

Germanium-based perovskite solar cells have garnered significant interest within the scientific community due to their non-toxicity and excellent stability. However, their low conversion efficiency is an obstacle to their application and design. We designed a device with a normal configuration structured as Glass / FTO / SnO2 / IDL1 / CsGeI3 / IDL2 / Cu2O / Au to improve our germanium-based perovskite solar cell, designed The integration of interface defect layers IDL1 and IDL2 the reduction of recombination. The study revealed that these IDL1 and IDL2 layers play a crucial role in solar conversion performance. By adjusting the thickness, electron affinity and defect density of the IDL1 and IDL2 layers, the conversion efficiency of our device exceeds 19%. However, an increase in temperature in the environment can negatively affect the cell by decreasing its photovoltaic efficiency.

Published in International Journal of Materials Science and Applications (Volume 14, Issue 4)
DOI 10.11648/j.ijmsa.20251404.13
Page(s) 134-143
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2025. Published by Science Publishing Group

Keywords

Perovskite, CsGeI3, IDL1, IDL2, PCE Performance

References
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Cite This Article
  • APA Style

    Sow, A., Seck, S., Faye, M., Mane, M. S., Ndiaye, A., et al. (2025). Study of the Effect of Interface Defect Layers (IDL1 and IDL2) on CsGeI3 Perovskite Solar Cells by SCAPS 1D Simulation. International Journal of Materials Science and Applications, 14(4), 134-143. https://doi.org/10.11648/j.ijmsa.20251404.13

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    ACS Style

    Sow, A.; Seck, S.; Faye, M.; Mane, M. S.; Ndiaye, A., et al. Study of the Effect of Interface Defect Layers (IDL1 and IDL2) on CsGeI3 Perovskite Solar Cells by SCAPS 1D Simulation. Int. J. Mater. Sci. Appl. 2025, 14(4), 134-143. doi: 10.11648/j.ijmsa.20251404.13

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    AMA Style

    Sow A, Seck S, Faye M, Mane MS, Ndiaye A, et al. Study of the Effect of Interface Defect Layers (IDL1 and IDL2) on CsGeI3 Perovskite Solar Cells by SCAPS 1D Simulation. Int J Mater Sci Appl. 2025;14(4):134-143. doi: 10.11648/j.ijmsa.20251404.13

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  • @article{10.11648/j.ijmsa.20251404.13,
      author = {Alioune Sow and Saliou Seck and Modou Faye and Mamadou Salif Mane and Amadou Ndiaye and Bachirou Ndiaye and Babacar Mbow and Cheikh Sene},
      title = {Study of the Effect of Interface Defect Layers (IDL1 and IDL2) on CsGeI3 Perovskite Solar Cells by SCAPS 1D Simulation
    },
      journal = {International Journal of Materials Science and Applications},
      volume = {14},
      number = {4},
      pages = {134-143},
      doi = {10.11648/j.ijmsa.20251404.13},
      url = {https://doi.org/10.11648/j.ijmsa.20251404.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20251404.13},
      abstract = {Germanium-based perovskite solar cells have garnered significant interest within the scientific community due to their non-toxicity and excellent stability. However, their low conversion efficiency is an obstacle to their application and design. We designed a device with a normal configuration structured as Glass / FTO / SnO2 / IDL1 / CsGeI3 / IDL2 / Cu2O / Au to improve our germanium-based perovskite solar cell, designed The integration of interface defect layers IDL1 and IDL2 the reduction of recombination. The study revealed that these IDL1 and IDL2 layers play a crucial role in solar conversion performance. By adjusting the thickness, electron affinity and defect density of the IDL1 and IDL2 layers, the conversion efficiency of our device exceeds 19%. However, an increase in temperature in the environment can negatively affect the cell by decreasing its photovoltaic efficiency.},
     year = {2025}
    }
    

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  • TY  - JOUR
    T1  - Study of the Effect of Interface Defect Layers (IDL1 and IDL2) on CsGeI3 Perovskite Solar Cells by SCAPS 1D Simulation
    
    AU  - Alioune Sow
    AU  - Saliou Seck
    AU  - Modou Faye
    AU  - Mamadou Salif Mane
    AU  - Amadou Ndiaye
    AU  - Bachirou Ndiaye
    AU  - Babacar Mbow
    AU  - Cheikh Sene
    Y1  - 2025/07/31
    PY  - 2025
    N1  - https://doi.org/10.11648/j.ijmsa.20251404.13
    DO  - 10.11648/j.ijmsa.20251404.13
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 134
    EP  - 143
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20251404.13
    AB  - Germanium-based perovskite solar cells have garnered significant interest within the scientific community due to their non-toxicity and excellent stability. However, their low conversion efficiency is an obstacle to their application and design. We designed a device with a normal configuration structured as Glass / FTO / SnO2 / IDL1 / CsGeI3 / IDL2 / Cu2O / Au to improve our germanium-based perovskite solar cell, designed The integration of interface defect layers IDL1 and IDL2 the reduction of recombination. The study revealed that these IDL1 and IDL2 layers play a crucial role in solar conversion performance. By adjusting the thickness, electron affinity and defect density of the IDL1 and IDL2 layers, the conversion efficiency of our device exceeds 19%. However, an increase in temperature in the environment can negatively affect the cell by decreasing its photovoltaic efficiency.
    VL  - 14
    IS  - 4
    ER  - 

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Author Information
  • Department Physics, Faculty of Sciences and Technology, Semiconductors and Solar Energy Laboratory, Cheikh Anta DIOP University, Dakar, Senegal

  • Department Physics, Faculty of Sciences and Technology, Semiconductors and Solar Energy Laboratory, Cheikh Anta DIOP University, Dakar, Senegal

  • Department Physics, Faculty of Sciences and Technology, Semiconductors and Solar Energy Laboratory, Cheikh Anta DIOP University, Dakar, Senegal

  • Department Physics, Faculty of Sciences and Technology, Semiconductors and Solar Energy Laboratory, Cheikh Anta DIOP University, Dakar, Senegal

  • Department Physics, Faculty of Sciences and Technology, Semiconductors and Solar Energy Laboratory, Cheikh Anta DIOP University, Dakar, Senegal

  • Department Physics, Faculty of Sciences and Technology, Semiconductors and Solar Energy Laboratory, Cheikh Anta DIOP University, Dakar, Senegal

  • Department Physics, Faculty of Sciences and Technology, Semiconductors and Solar Energy Laboratory, Cheikh Anta DIOP University, Dakar, Senegal

  • Department Physics, Faculty of Sciences and Technology, Semiconductors and Solar Energy Laboratory, Cheikh Anta DIOP University, Dakar, Senegal

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