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    Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells

    Access Status
    Fulltext not available
    Authors
    Elumalai, Naveen Kumar
    Mahmud, A.
    Wang, D.
    Wright, M.
    Upama, M.
    Chan, K.
    Xu, C.
    Uddin, A.
    Date
    2018
    Type
    Conference Paper
    
    Metadata
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    Citation
    Elumalai, N.K. and Mahmud, A. and Wang, D. and Wright, M. and Upama, M. and Chan, K. and Xu, C. et al. 2018. Hysteresis and electrode polarization in normal and inverted hybrid perovskite solar cells, pp. 1-4.
    Source Title
    2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017
    DOI
    10.1109/PVSC.2017.8366111
    ISBN
    9781509056057
    URI
    http://hdl.handle.net/20.500.11937/74732
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 IEEE. Organic-inorganic hybrid perovskite solar cells (PSCs) have demonstrated enormous potential to replace the traditional silicon photovoltaics. In spite of impressive progress, an in-depth understanding of various physiochemical and electronic properties of PSCs are yet to be unravelled. Anomalous hysteresis is one among them and its origin is a highly debated issue till date. In this work, the role of device structure and interfacial charge selective layer on the origin of hysteresis phenomenon was investigated. Normal devices with ZnO as electron transport layer exhibited excess interfacial capacitance in an order of magnitude higher than inverted devices with PCBM. Current-voltage characteristics correlated with capacitance measurements revealed that the electrode polarization as a consequence of ion migration and interfacial defect states might be a possible origin for hysteresis in PSCs.

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