Organic-Inorganic Perovskite Films and Efficient Planar Heterojunction Solar Cells by Magnetron Sputtering,Advanced Science

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Organic-Inorganic Perovskite Films and Efficient Planar Heterojunction Solar Cells by Magnetron Sputtering
Advanced Science ( IF 14.3 ) Pub Date : 2021-09-16 , DOI: 10.1002/advs.202102081
Bo Gao ₁ , Jing Hu ₁ , Sheng Tang ₁ , Xinyu Xiao ₁ , Hunglin Chen ₁ , Zhuang Zuo ₁ , Qi Qi ₁ , Zongyang Peng ₁ , Jianchun Wen ₁ , Dechun Zou _{1,

2}

Affiliation

Organic–inorganic halide perovskites have been widely used in photovoltaic technologies. Despite tremendous progress in their efficiency and stability, perovskite solar cells (PSCs) are still facing the challenges of upscaling and stability for practical applications. As a mature film preparation technology, magnetron sputtering has been widely used to prepare metals, metallic oxides, and some semiconductor films, which has great application potential in the fabrication of PSCs. Here, a unique technology where high-quality perovskite films are prepared via magnetron sputtering for controllable composition, solvent-free, large-area, and massive production, is presented. This strategy transforms the perovskite materials from powder to thin films by magnetron sputtering and post-treatment (vapor-assisted treatment with methanaminium iodide gas and methylamine gas treatment), which is greatly favorable to manufacture tandem solar cells. The power conversion efficiency (PCE) of PSCs with perovskite films fabricated by magnetron sputtering is 6.14%. After optimization, high-performance perovskite films with excellent electronic properties are obtained and stable PSCs with excellent reproducibility are realized, showing a PCE of up to 15.22%. The entirely novel synthetic approach opens up a new and promising way to achieve high-throughput magnetron sputtering for large-area production in commercial applications of planar heterojunction and tandem PSCs.

中文翻译：

磁控溅射有机-无机钙钛矿薄膜和高效平面异质结太阳能电池

有机-无机卤化物钙钛矿已广泛应用于光伏技术。尽管钙钛矿太阳能电池（PSC）在效率和稳定性方面取得了巨大进步，但在实际应用中仍然面临着尺寸放大和稳定性的挑战。磁控溅射作为一种成熟的薄膜制备技术，已广泛用于制备金属、金属氧化物和一些半导体薄膜，在PSCs的制备中具有巨大的应用潜力。在此，提出了一种通过磁控溅射制备高品质钙钛矿薄膜的独特技术，该技术可实现成分可控、无溶剂、大面积、大规模生产。该策略通过磁控溅射和后处理（碘化甲烷气体辅助处理和甲胺气体处理）将钙钛矿材料从粉末转变为薄膜，这对于制造叠层太阳能电池非常有利。磁控溅射钙钛矿薄膜太阳能电池的功率转换效率（PCE）为6.14%。经过优化，获得了具有优异电子性能的高性能钙钛矿薄膜，并实现了具有优异重现性的稳定PSC，PCE高达15.22%。这种全新的合成方法开辟了一种新的、有前景的方法，以实现高通量磁控溅射，以实现平面异质结和串联 PSC 商业应用中的大面积生产。

更新日期：2021-11-17

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