With amazing progress in the state-of-the-art perovskite solar cells (PSCs) fabricated by laboratory-scale spin-coating methods, upscaling the PSCs via printing friendly techniques is becoming more and more important toward the future deployment of large-scale and stable perovskite modules. Here, we demonstrate the room-temperature meniscus coating of high-quality perovskite films incorporated with a multifunctional sulfobetaine-based zwitterionic surfactant. Systematic in situ studies uncover the perovskite crystallization pathway and emphasize the surfactant’s synergistic role in film construction, crystallization kinetics modulation, defect passivation, and moisture barrier protection. This strategy is applicable across perovskite compositions and device architectures with the enhanced power conversion efficiencies up to 22%. Upscaling the device area to 0.8 cm² has negligible deterioration in the performance. This represents one of the highest records for the upscaling coated PSCs, not limited in room-temperature coated PSCs. In addition, this approach significantly improves the stability of perovskite films and devices under different aging conditions.

随着实验室规模的旋涂方法制造的钙钛矿太阳能电池（PSC）取得了惊人的进步，通过易于打印的技术来扩大PSC的规模对于将来大规模和大规模应用钙钛矿变得越来越重要。稳定的钙钛矿组件。在这里，我们展示了结合了多功能磺基甜菜碱基两性离子表面活性剂的高质量钙钛矿薄膜的室温弯月面涂层。系统的原位研究揭示了钙钛矿的结晶途径，并强调了表面活性剂在薄膜构造，结晶动力学调节，缺陷钝化和防潮层保护中的协同作用。该策略适用于钙钛矿成分和设备架构，功率转换效率提高了22％。将器件面积扩大到0.8 cm ²对性能的影响可以忽略不计。这代表了升级涂层的PSC的最高记录之一，而不受室温涂层的PSC的限制。另外，该方法显着提高了钙钛矿薄膜和器件在不同时效条件下的稳定性。