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Flash Infrared Annealing for Antisolvent‐Free Highly Efficient Perovskite Solar Cells
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2018-01-17 , DOI: 10.1002/aenm.201702915 Sandy Sanchez 1 , Xiao Hua 1 , Nga Phung 2 , Ullrich Steiner 1 , Antonio Abate 2
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2018-01-17 , DOI: 10.1002/aenm.201702915 Sandy Sanchez 1 , Xiao Hua 1 , Nga Phung 2 , Ullrich Steiner 1 , Antonio Abate 2
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Organic–inorganic perovskites have demonstrated an impressive potential for the design of the next generation of solar cells. Perovskite solar cells (PSCs) are currently considered for scaling up and commercialization. Many of the lab‐scale preparation methods are however difficult to scale up or are environmentally unfriendly. The highest efficient PSCs are currently prepared using the antisolvent method, which utilizes a significant amount of an organic solvent to induce perovskite crystallization in a thin film. An antisolvent‐free method is developed in this work using flash infrared annealing (FIRA) to prepare methylammonium lead iodide (MAPbI3) PSCs with a record stabilized power conversion efficiency of 18.3%. With an irradiation time of fewer than 2 s, FIRA enables the coating of glass and plastic substrates with pinhole‐free perovskite films that exhibit micrometer‐size crystalline domains. This work discusses the FIRA‐induced crystallization mechanism and unveils the main parameters controlling the film morphology. The replacement of the antisolvent method and the larger crystalline domains resulting from flash annealing make FIRA a highly promising method for the scale‐up of PSC manufacture.
中文翻译：
快速红外退火，用于无溶剂的高效钙钛矿太阳能电池
有机-无机钙钛矿已显示出下一代太阳能电池设计的巨大潜力。目前考虑将钙钛矿太阳能电池（PSC）用于规模化和商业化。但是，许多实验室规模的制备方法难以扩大规模或对环境不利。目前，最有效的PSC使用抗溶剂法制备，该方法利用大量有机溶剂诱导薄膜中的钙钛矿结晶。在这项工作中开发了一种无溶剂方法，该方法使用快速红外退火（FIRA）制备甲基铵碘化铅（MAPbI 3）功率转换效率达到创纪录的18.3％的PSC。FIRA的照射时间少于2 s，可在玻璃和塑料基材上涂覆无针孔钙钛矿膜，该膜具有微米级的晶畴。这项工作讨论了FIRA诱导的结晶机理，并揭示了控制薄膜形态的主要参数。反溶剂法的替代和快速退火带来的更大的晶畴使FIRA成为扩大PSC生产规模的极有前途的方法。
更新日期：2018-01-17
中文翻译：
快速红外退火，用于无溶剂的高效钙钛矿太阳能电池
有机-无机钙钛矿已显示出下一代太阳能电池设计的巨大潜力。目前考虑将钙钛矿太阳能电池（PSC）用于规模化和商业化。但是，许多实验室规模的制备方法难以扩大规模或对环境不利。目前，最有效的PSC使用抗溶剂法制备，该方法利用大量有机溶剂诱导薄膜中的钙钛矿结晶。在这项工作中开发了一种无溶剂方法，该方法使用快速红外退火（FIRA）制备甲基铵碘化铅（MAPbI 3）功率转换效率达到创纪录的18.3％的PSC。FIRA的照射时间少于2 s，可在玻璃和塑料基材上涂覆无针孔钙钛矿膜，该膜具有微米级的晶畴。这项工作讨论了FIRA诱导的结晶机理，并揭示了控制薄膜形态的主要参数。反溶剂法的替代和快速退火带来的更大的晶畴使FIRA成为扩大PSC生产规模的极有前途的方法。
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