Abstract On 3rd August 2019 National Renewable Energy Laboratory (NREL) announced a new world record of 25.2% power conversion efficiency (PCE) for the hottest photovoltaic material known as perovskites. The growth in popularity and substantial improvement in the efficiency of perovskites since their discovery in 2009 is demonstrated by over 6000 publications in 2018. Although, the current world record efficiency has been reported for organic-inorganic halide perovskite, all devices were fabricated in controlled inert conditions and organic cations suffer from poor stability. Therefore, replacement of conventional organic cations by inorganic cations is one of the most promising approaches to make thermally stable photovoltaics. However, all-inorganic perovskite solar cells (PSCs) (herein AIPSCs) composition and deposition techniques limit the real-time stability. This article previews the dynamic hot air (DHA) method used for making CsPbI2Br-based perovskites with improved air-thermal stability using barium (Ba2+) alkaline earth metal ion doping. Interestingly, the feasibility of this DHA method toward large area fabrication is also demonstrated.

中文翻译：

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通过动态热空气制造空气稳定的全无机钙钛矿太阳能电池

摘要 2019 年 8 月 3 日，国家可再生能源实验室 (NREL) 宣布了一种新的世界纪录，即最热的光伏材料钙钛矿的功率转换效率 (PCE) 为 25.2%。自 2009 年钙钛矿被发现以来，钙钛矿的普及率和效率的显着提高在 2018 年的 6000 多篇出版物中得到了证明。尽管目前报告的有机-无机卤化物钙钛矿的效率世界纪录，但所有设备都是在受控惰性条件下制造的。条件和有机阳离子稳定性差。因此，用无机阳离子代替传统的有机阳离子是制造热稳定光伏最有前途的方法之一。然而，全无机钙钛矿太阳能电池 (PSC)（此处称为 AIPSC）的组成和沉积技术限制了实时稳定性。本文预览了使用钡 (Ba2+) 碱土金属离子掺杂制备具有改进的空气热稳定性的 CsPbI2Br 基钙钛矿的动态热风 (DHA) 方法。有趣的是，还证明了这种 DHA 方法对大面积制造的可行性。