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Parameters Influencing the Growth of ZnO Nanowires as Efficient Low Temperature Flexible Perovskite-Based Solar Cells

Institute of Chemistry Casali Center for Applied Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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Academic Editor: Anke Weidenkaff
Materials 2016, 9(1), 60; https://doi.org/10.3390/ma9010060
Received: 6 December 2015 / Revised: 21 December 2015 / Accepted: 11 January 2016 / Published: 19 January 2016
(This article belongs to the Section Energy Materials)
Hybrid organic-inorganic perovskite has proved to be a superior material for photovoltaic solar cells. In this work we investigate the parameters influencing the growth of ZnO nanowires (NWs) for use as an efficient low temperature photoanode in perovskite-based solar cells. The structure of the solar cell is FTO (SnO2:F)-glass (or PET-ITO (In2O3·(SnO2) (ITO)) on, polyethylene terephthalate (PET)/ZnAc seed layer/ZnO NWs/CH3NH3PbI3/Spiro-OMeTAD/Au. The influence of the growth rate and the diameter of the ZnO NWs on the photovoltaic performance were carefully studied. The ZnO NWs perovskite-based solar cell demonstrates impressive power conversion efficiency of 9.06% on a rigid substrate with current density over 21 mA/cm2. In addition, we successfully fabricated flexible perovskite solar cells while maintaining all fabrication processes at low temperature, achieving power conversion efficiency of 6.4% with excellent stability for over 75 bending cycles. View Full-Text
Keywords: ZnO nanowires; flexible solar cells; growth rate; precursor concentration; perovskite ZnO nanowires; flexible solar cells; growth rate; precursor concentration; perovskite
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Dymshits, A.; Iagher, L.; Etgar, L. Parameters Influencing the Growth of ZnO Nanowires as Efficient Low Temperature Flexible Perovskite-Based Solar Cells. Materials 2016, 9, 60.

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