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

机译:高效低温柔性钙钛矿基太阳能电池中影响ZnO纳米线生长的参数

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摘要

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.
机译:混合有机-无机钙钛矿已被证明是用于光伏太阳能电池的优良材料。在这项工作中,我们研究了影响ZnO纳米线(NWs)增长的参数,这些参数可用作基于钙钛矿的太阳能电池中的高效低温光电阳极。太阳能电池的结构是FTO(SnO2:F)玻璃(或PET-ITO(In2O3·(SnO2)(ITO))在聚对苯二甲酸乙二醇酯(PET)/ ZnAc种子层/ ZnO NWs / CH3NH3PbI3 / Spiro-OMeTAD上/ Au。仔细研究了ZnO NWs的生长速率和直径对光伏性能的影响。ZnO NWs钙钛矿基太阳能电池在电流密度超过21 mA的刚性基板上显示出令人印象深刻的9.06%的功率转换效率/ cm 2 。此外,我们成功地制造了柔性钙钛矿型太阳能电池,同时将所有制造工艺保持在低温下,在超过75个弯曲循环中实现了6.4%的功率转换效率和出色的稳定性。

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