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首页> 外文期刊>RSC Advances >Improved photovoltaic performance in perovskite solar cells based on CH3NH3PbI3 films fabricated under controlled relative humidity
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Improved photovoltaic performance in perovskite solar cells based on CH3NH3PbI3 films fabricated under controlled relative humidity

机译：基于受控相对湿度制造的CH3NH3PBI3薄膜的Perovskite太阳能电池中的光伏性能提高

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摘要

Because organic-inorganic perovskite solar cells are known to be unstable in the presence of moisture, most of the reported high-efficiency perovskite solar cells are fabricated under an inert atmosphere in a glove box. This requirement impedes mass production of organic-inorganic perovskite solar cells (PVSCs). Fabricating dense uniform perovskite thin films with high surface coverage via a single one-step solution process is also a challenge in achieving high-efficiency PVSCs. In this work, we successfully develop a facile, controllable one-step solution processing method to obtain high-quality hybrid- perovskite thin films in ambient atmosphere. The entire preparation process for CH3NH3PbI3 films is conducted in ambient air to investigate the effect of humidity on the molecular structure and crystallization of the hybrid perovskite. It is found that relative humidity (RH) and solvent are crucial factors in determining the final morphology of CH3NH3PbI3 and the photovoltaic performance. The best device efficiency achieved for a solar cell fabricated in ambient atmosphere under a RH of 28% is 16.15%; this PCE value is comparable to that of glove box-based PVSCs. This work puts forth a possible method for the easy mass production of high-performance PVSCs under ambient conditions.
机译：因为已知有机 - 无机钙钛矿太阳能电池在水分存在下不稳定，所以大多数报道的高效钙钛矿太阳能电池在手套箱中的惰性气氛下制造。该要求阻碍了有机无机钙钛矿太阳能电池（PVSC）的大规模生产。通过单一的一步溶液方法制造具有高表面覆盖的致密均匀钙钛矿薄膜也是实现高效PVSC的挑战。在这项工作中，我们成功开发了一种容易，可控的一步解决方案处理方法，以获得环境气氛中的高质量混合钙钛矿薄膜。 CH3NH3PBI3薄膜的整个制备方法在环境空气中进行，研究湿度对杂交钙钛矿的分子结构和结晶的影响。结果发现，相对湿度（RH）和溶剂是确定CH3NH3PBI3的最终形态和光伏性能的关键因素。在48％下，在环境大气下制造的太阳能电池实现的最佳装置效率为16.15％;该PCE值与基于手套箱的PVSC相当。这项工作提出了一种可能的方法，可以在环境条件下轻松生产高性能PVSC。

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  • 来源
    《RSC Advances》 |2015年第114期|共7页
  • 作者

    Minghang Lv; Xu Dong; Xiang Fang;

  • 作者单位

    School of Materials Science and Engineering Jiangsu Collaborative Innovation Center for Photovolatic Science and Engineering Changzhou University Changzhou 213164 Jiangsu China.;

    School of Materials Science and Engineering Jiangsu Collaborative Innovation Center for Photovolatic Science and Engineering Changzhou University Changzhou 213164 Jiangsu China.;

    School of Materials Science and Engineering Jiangsu Collaborative Innovation Center for Photovolatic Science and Engineering Changzhou University Changzhou 213164 Jiangsu China.;

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  • 正文语种 eng
  • 中图分类 化学;
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