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  • Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells

    Author(s)
    Saianand, Gopalan
    Gopalan, Anantha-Iyengar
    Roy, Vellaisamy AL
    Wilson, Gregory J
    Jakmunee, Jaroon
    Sonar, Prashant
    Lin, Liangyou
    Kim, Sae-Wan
    Kang, Shin-Won
    Griffith University Author(s)
    Sonar, Prashant
    Year published
    2020
    Metadata
    Show full item record
    Abstract
    We rationally utilized a solution-processed post-heat treatment-free heteropolyacid compound, phosphomolybdic acid hydrate (PMAH) as a charge selective interface modifier for poly(3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT:PSS) in inverted perovskite solar cells (PSCs). The fabricated PSCs with PMAH/PEDOT:PSS bilayer exhibited significant improvement in the power conversion efficiency (PCE) (∼12%) with superior long-term air-stability as compared to PEDOT:PSS based PSCs (9.8%). The measured photovoltaic performance demonstrates that the inclusion of PMAH as an interface to ITO and PEDOT:PSS is an efficient ...
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    We rationally utilized a solution-processed post-heat treatment-free heteropolyacid compound, phosphomolybdic acid hydrate (PMAH) as a charge selective interface modifier for poly(3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT:PSS) in inverted perovskite solar cells (PSCs). The fabricated PSCs with PMAH/PEDOT:PSS bilayer exhibited significant improvement in the power conversion efficiency (PCE) (∼12%) with superior long-term air-stability as compared to PEDOT:PSS based PSCs (9.8%). The measured photovoltaic performance demonstrates that the inclusion of PMAH as an interface to ITO and PEDOT:PSS is an efficient way of realizing stable and efficient PSCs.
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    Journal Title
    Materials Letters
    Volume
    277
    DOI
    https://doi.org/10.1016/j.matlet.2020.128393
    Subject
    Physical sciences
    Chemical sciences
    Engineering
    Science & Technology
    Materials Science, Multidisciplinary
    Physics, Applied
    Publication URI
    http://hdl.handle.net/10072/400257
    Collection
    • Journal articles

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