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    Hybrid sequential deposition process for fully textured perovskite/silicon tandem solar cells

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    Sahli, F.; Werner, J.; Kamino, B. A.; Brauninger, M.; Yang, T. C. J.; Fiala, P.; et al.
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    Abstract
    Tandem solar cells that feature a high-bandgap perovskite cell on top of a lower bandgap silicon cell have the potential to reach efficiencies > 30%. Here, we present a versatile hybrid deposition method that yields conformal perovskite cells directly on textured silicon bottom cells, a prerequisite to achieve highest photocurrents and hence efficiencies. Furthermore, this low-temperature evaporation/spin-coating 2-step method produces high-quality perovskite materials with different bandgaps, here varied in the range of 1.5 eV to 1.8 eV. This flexibility enables the fabrication of monolithic 2-terminal perovskite/textured Si tandems that feature high photocurrents of about 19.5 mA/cm(2).
    Publication Reference
    in 2018 Ieee 7th World Conference on Photovoltaic Energy Conversion (Issue), ed New York: Ieee, 2018, pp. 3571-3574.
    Year
    2018
    URI
    https://yoda.csem.ch/handle/20.500.12839/273
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