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Materials 2016, 9(1), 60; doi:10.3390/ma9010060

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
Received: 6 December 2015 / Revised: 21 December 2015 / Accepted: 11 January 2016 / Published: 19 January 2016
(This article belongs to the Section Energy Materials)
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Abstract

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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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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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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