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首页> 外文会议>応用物理学会秋季学術講演会;応用物理学会 >High-Performance and Stable Perovskite Solar Cells by Adding Polymer Additive in Barium Doped Methylammonium Lead Halide
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High-Performance and Stable Perovskite Solar Cells by Adding Polymer Additive in Barium Doped Methylammonium Lead Halide

机译：通过在钡掺杂的甲基铵卤化铅中添加聚合物添加剂来实现高性能和稳定的钙钛矿太阳能电池

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The organic-inorganic lead halide perovskite solar cells (PSCs) is seen as a potential photovoltaic device due to its high power conversion efficiency, and it can be fabricated through the simple solution process. However, the most critical issues that hamper its commercialization is its content of toxic lead. The existent of lead not only shows deleterious effect on human but also harmful to our environment. To address this toxicity issue, intensive effort has been dedicated to developing low-toxic PSCs. According to tolerance factor and Goldschmidt's rule, Ba~(2+) is well meet to these rules. Besides, it also maintain the charge balance in perovskite. Based on these reason, non-toxic Ba~(2+) with the addition polymer additive into the perovskite layer has become a promising method to improve the perovskite device performance, which may result in better morphology, crystallinity, and improve the coverage between perovskite layers. The 10.0 mol% Ba~(2+)-doped device had high VOC and JSC, however, it had a lower FF, which was mainly due to the defects on the surface. Adding polymer additive into the perovskite layer has become a promising method to improve the perovskite device performance, which may result in better morphology, crystallinity, and improve the coverage between perovskite layers. Moreover, it has been reported that the more compact perovskite film can be formed with the addition of long-chain polymers in the previous study. With PEG as a polymer additive, it merged with the 10.0 mol% Ba~(2+)-doped perovskite perfectly with better morphology without pinholes. The fabricated PSCs with 10.0 mol% Ba~(2+) replacement, shows an average PCE of 15.0% (～20 devices) and champion PCE of 16.1%. The high-performance lead-reduced device has great potential for commercialization, which is much eco-friendlier to the environment and even the whole world.
机译：有机-无机卤化铅钙钛矿太阳能电池（PSC）由于其高功率转换效率而被视为潜在的光伏器件，并且可以通过简单的溶液工艺来制造。但是，阻碍其商业化的最关键问题是其有毒铅的含量。铅的存在不仅对人体有害，而且对环境有害。为了解决该毒性问题，已经致力于开发低毒性的PSC。根据容差因子和Goldschmidt规则，Ba〜（2+）很好地满足了这些规则。此外，它还保持钙钛矿中的电荷平衡。基于这些原因，在钙钛矿层中添加聚合物添加剂的无毒Ba〜（2+）成为改善钙钛矿器件性能的一种有前途的方法，可能导致更好的形貌，结晶度，并改善钙钛矿之间的覆盖率。层。掺杂10.0 mol％Ba〜（2+）的器件具有较高的VOC和JSC，但是其FF较低，这主要是由于表面缺陷所致。将聚合物添加剂添加到钙钛矿层中已经成为改善钙钛矿装置性能的有前途的方法，其可以导致更好的形态，结晶度并改善钙钛矿层之间的覆盖率。而且，据报道，在先前的研究中，通过添加长链聚合物可以形成更致密的钙钛矿膜。以PEG为聚合物添加剂，它与10.0 mol％Ba〜（2+）掺杂的钙钛矿完美融合，具有更好的形貌而没有针孔。制备的BaSCs具有10.0 mol％的Ba〜（2+）替代物，平均PCE为15.0％（〜20个器件），冠军PCE为16.1％。高性能的减少铅的设备具有巨大的商业化潜力，对环境乃至整个世界都具有生态友好性。

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