Large‐area homogeneous and uniform perovskite films are key to the mass production of perovskite solar cells, especially the flexible ones. Different from the solution‐processed preparation, herein an all‐evaporation technique is developed for both perovskite films and the hole‐transporting layer in the modules. With the two‐step strategy of active‐layer design, homogeneous large‐area perovskite films are prepared via evaporation of first PbI₂ and then CH₃NH₃I. An 2,3,5,6‐tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane (F4TCNQ)‐doped 4,4′,4″‐tris(N‐(aphthalene‐2‐yl)‐N‐phenylamino)triphenylamine (2T‐NATA) hybrid hole‐transporting layer is deposited on the indium‐tin‐oxide electrode via coevaporation. A power conversion efficiency (PCE) beyond 13% is achieved with the as‐prepared flexible perovskite solar module (active area of 16.0 cm²), which exhibits both higher stability and higher efficiency than the conventional solution‐processed module using poly(3,4‐ethylenedioxythiophene)‐poly(styrenesulfonate) (PEDOT:PSS) as the hole‐transporting material. This novel strategy of all‐evaporation functional layers provides a feasible way for the industrialization of flexible perovskite solar cells.

中文翻译：

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具有功能层的柔性钙钛矿太阳能电池组件完全真空沉积

大面积均匀且均匀的钙钛矿薄膜是钙钛矿太阳能电池特别是柔性太阳能电池大规模生产的关键。与固溶处理的制备方法不同，这里开发了一种全蒸发技术，用于钙钛矿膜和模块中的空穴传输层。采用主动层设计的两步策略，首先先蒸发PbI ₂然后蒸发CH ₃ NH ₃ I制备均匀的大面积钙钛矿膜。2,3,5,6-四氟-7,7,8 ，8-四氰基喹二甲烷（F4TCNQ）掺杂的4,4'，4'' -tris （N-（萘-2-基）-N-苯基氨基）三苯胺（2T-NATA）杂化空穴传输层通过共蒸发沉积在氧化铟锡电极上。所制备的柔性钙钛矿太阳能电池组件（有效面积为16.0 cm ²）可实现超过13％的功率转换效率（PCE），其稳定性和效率均高于使用poly（3， 4-乙烯二氧噻吩）-聚（苯乙烯磺酸盐）（PEDOT：PSS）作为空穴传输材料。这种全蒸发功能层的新颖策略为柔性钙钛矿太阳能电池的工业化提供了可行的方法。