Flash infrared annealing (FIRA) of perovskite films enables manufacturing compact perovskite layers for photovoltaic devices. Here, a variable infrared pulse length to control crystal nucleation and growth in perovskite films is investigated. By varying the FIRA parameters, high-quality films are fabricated of fully inorganic and hybrid perovskites. Furthermore, film characterizations are analyzed for each FIRA protocol, unveiling the nature of the film growth. This demonstrates the versatility of FIRA and establishes it as a fast synthesis process, which provides detailed control over the perovskite morphology and crystallinity.

中文翻译：

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钙钛矿晶体成核和溶液生长的红外脉冲时间控制

钙钛矿薄膜的快速红外退火（FIRA）使制造光电器件的致密钙钛矿层成为可能。在这里，研究了可变的红外脉冲长度，以控制钙钛矿薄膜中的晶体成核和生长。通过改变FIRA参数，可以制成由完全无机和杂化钙钛矿组成的高质量薄膜。此外，针对每种FIRA协议分析了薄膜特性，揭示了薄膜生长的本质。这证明了FIRA的多功能性，并将其确立为一种快速的合成工艺，从而提供了对钙钛矿形态和结晶度的详细控制。