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    Interplay between temperature and bandgap energies on the outdoor performance of perovskite/silicon tandem solar cells

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    Name:
    Interplay between.pdf
    Size:
    1.866Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2021-03-14
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    Type
    Article
    Authors
    Aydin, Erkan cc
    Allen, Thomas
    de Bastiani, Michele
    Xu, Lujia cc
    Ávila, Jorge cc
    Salvador, Michael
    Van Kerschaver, Emmanuel
    De Wolf, Stefaan cc
    KAUST Department
    KAUST Solar Center (KSC)
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    KAUST Grant Number
    OSR-CARF URF/1/3079-33-01
    Date
    2020-09-14
    Online Publication Date
    2020-09-14
    Print Publication Date
    2020-11
    Embargo End Date
    2021-03-14
    Submitted Date
    2020-02-06
    Permanent link to this record
    http://hdl.handle.net/10754/665149
    
    Metadata
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    Abstract
    Perovskite/silicon tandem solar cells promise power conversion efficiencies beyond the Shockley–Queisser limit of single-junction devices; however, their actual outdoor performance is yet to be investigated. Here we fabricate 25% efficient two-terminal monolithic perovskite/silicon tandem solar cells and test them outdoors in a hot and sunny climate. We find that the temperature dependence of both the silicon and perovskite bandgaps—which follow opposing trends—shifts the devices away from current matching for two-terminal tandems that are optimized at standard test conditions. Consequently, we argue that the optimal perovskite bandgap energy at standard test conditions is <1.68 eV for field performance at operational temperatures greater than 55 °C, which is lower compared with earlier findings. This implies that bromide-lean perovskites with narrower bandgaps at standard test conditions—and therefore better phase stability—hold great promise for the commercialization of perovskite/silicon tandem solar cells.
    Citation
    Aydin, E., Allen, T. G., De Bastiani, M., Xu, L., Ávila, J., Salvador, M., … De Wolf, S. (2020). Interplay between temperature and bandgap energies on the outdoor performance of perovskite/silicon tandem solar cells. Nature Energy. doi:10.1038/s41560-020-00687-4
    Sponsors
    The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) under award nos. OSR-CARF URF/1/3079-33-01 and IED OSR-2019-4208. The authors thank TUV Rheinland Group for providing solar spectra from their outdoor test field on the KAUST campus. J.Á. thanks the Spanish Ministry of Education, Culture and Sport for his pre-doctoral grant (FPU14/04466).
    Publisher
    Springer Science and Business Media LLC
    Journal
    Nature Energy
    DOI
    10.1038/s41560-020-00687-4
    Additional Links
    http://www.nature.com/articles/s41560-020-00687-4
    ae974a485f413a2113503eed53cd6c53
    10.1038/s41560-020-00687-4
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program; KAUST Solar Center (KSC)

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