Perovskite solar cells (PSCs) show great promise for next-generation building-integrated photovoltaic (BIPV) applications because of their abundance of raw materials, adjustable transparency, and cost-effective printable processing. Owing to the complex perovskite nucleation and growth control, the fabrication of large-area perovskite films for high-performance printed PSCs is still under active investigation. Herein, the study proposes an intermediate-phase-transition-assisted one-step blade coating for an intrinsic transparent formamidinium lead bromide (FAPbBr₃) perovskite film. The intermediate complex optimizes the crystal growth path of FAPbBr₃, resulting in a large-area, homogeneous, and dense absorber film. A champion efficiency of 10.86% with high open-circuit voltage up to 1.57 V is obtained with a simplified device architecture of glass/FTO/SnO₂/FAPbBr₃/carbon. Moreover, the unencapsulated devices maintain 90% of their initial power conversion efficiency after aging at 75 °C for 1000 h in ambient air, and 96% after maximum power point tracking for 500 h. The printed semitransparent PSCs, with average visible light transmittance over 45%, demonstrate high efficiencies for both small devices (8.6%) and 10 × 10 cm² modules (5.55%). Finally, the ability to customize the color, transparency, and thermal insulation properties of FAPbBr₃ PSCs makes them high prospects as multifunctional BIPVs.

中文翻译：

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用于多功能光伏建筑一体化的可印刷高效稳定FAPbBr3钙钛矿太阳能电池

钙钛矿太阳能电池（PSC）因其丰富的原材料、可调节的透明度和经济高效的可印刷加工而在下一代建筑一体化光伏（BIPV）应用中显示出巨大的前景。由于复杂的钙钛矿成核和生长控制，用于高性能印刷PSC的大面积钙钛矿薄膜的制造仍在积极研究中。_{在此，该研究提出了一种用于本征透明甲脒溴化铅（FAPbBr 3} ）钙钛矿薄膜的中间相变辅助一步式刮刀涂层。_{该中间配合物优化了FAPbBr 3}的晶体生长路径，从而形成大面积、均匀且致密的吸收膜。_{通过玻璃/FTO/SnO 2} /FAPbBr ₃ /碳的简化器件架构，获得了 10.86% 的冠军效率和高达 1.57 V 的高开路电压。此外，未封装的器件在环境空气中 75°C 老化 1000 小时后仍保持其初始功率转换效率的 90%，在最大功率点跟踪 500 小时后仍保持 96%。印刷的半透明PSC的平均可见光透射率超过45%，对于小型器件（8.6%）和10 × 10 cm ²模块（5.55%）都表现出高效率。_{最后，FAPbBr 3} PSC能够定制颜色、透明度和隔热性能，这使得它们作为多功能 BIPV 具有广阔的前景。