Journal
MATERIALS
Volume 9, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/ma9010060
Keywords
ZnO nanowires; flexible solar cells; growth rate; precursor concentration; perovskite
Categories
Funding
- Israel Alternative Energy Foundation (I-SAEF)
- Ministry of Industry Trade and Labor Office of the Chief Scientist Kamin [50303]
- Tashtiot project of the Office of the Chief Scientist
- German Israel Foundation for Young Researchers
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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 center dot(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/cm(2). 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.
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