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Efficient bifacial monolithic perovskite/silicon tandem solar cells via bandgap engineering

Author

Listed:
  • Michele De Bastiani

    (King Abdullah University of Science and Technology (KAUST))

  • Alessandro J. Mirabelli

    (King Abdullah University of Science and Technology (KAUST)
    Alma Mater Studiorum—University of Bologna)

  • Yi Hou

    (University of Toronto)

  • Fabrizio Gota

    (Karlsruhe Institute of Technology)

  • Erkan Aydin

    (King Abdullah University of Science and Technology (KAUST))

  • Thomas G. Allen

    (King Abdullah University of Science and Technology (KAUST))

  • Joel Troughton

    (King Abdullah University of Science and Technology (KAUST))

  • Anand S. Subbiah

    (King Abdullah University of Science and Technology (KAUST))

  • Furkan H. Isikgor

    (King Abdullah University of Science and Technology (KAUST))

  • Jiang Liu

    (King Abdullah University of Science and Technology (KAUST))

  • Lujia Xu

    (King Abdullah University of Science and Technology (KAUST))

  • Bin Chen

    (University of Toronto)

  • Emmanuel Van Kerschaver

    (King Abdullah University of Science and Technology (KAUST))

  • Derya Baran

    (King Abdullah University of Science and Technology (KAUST))

  • Beatrice Fraboni

    (University of Bologna)

  • Michael F. Salvador

    (King Abdullah University of Science and Technology (KAUST))

  • Ulrich W. Paetzold

    (Karlsruhe Institute of Technology
    Light Technology Institute Karlsruhe Institute of Technology)

  • Edward H. Sargent

    (University of Toronto)

  • Stefaan De Wolf

    (King Abdullah University of Science and Technology (KAUST))

Abstract

Bifacial monolithic perovskite/silicon tandem solar cells exploit albedo—the diffuse reflected light from the environment—to increase their performance above that of monofacial perovskite/silicon tandems. Here we report bifacial tandems with certified power conversion efficiencies >25% under monofacial AM1.5G 1 sun illumination that reach power-generation densities as high as ~26 mW cm–2 under outdoor testing. We investigated the perovskite bandgap required to attain optimized current matching under a variety of realistic illumination and albedo conditions. We then compared the properties of these bifacial tandems exposed to different albedos and provide energy yield calculations for two locations with different environmental conditions. Finally, we present a comparison of outdoor test fields of monofacial and bifacial perovskite/silicon tandems to demonstrate the added value of tandem bifaciality for locations with albedos of practical relevance.

Suggested Citation

  • Michele De Bastiani & Alessandro J. Mirabelli & Yi Hou & Fabrizio Gota & Erkan Aydin & Thomas G. Allen & Joel Troughton & Anand S. Subbiah & Furkan H. Isikgor & Jiang Liu & Lujia Xu & Bin Chen & Emman, 2021. "Efficient bifacial monolithic perovskite/silicon tandem solar cells via bandgap engineering," Nature Energy, Nature, vol. 6(2), pages 167-175, February.
    • Handle: RePEc:nat:natene:v:6:y:2021:i:2:d:10.1038_s41560-020-00756-8
    DOI: 10.1038/s41560-020-00756-8
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    Cited by:

    1. Jouttijärvi, Sami & Lobaccaro, Gabriele & Kamppinen, Aleksi & Miettunen, Kati, 2022. "Benefits of bifacial solar cells combined with low voltage power grids at high latitudes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).

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