Perovskite solar cells (PSCs) are taking steps to commercialization. However, the halogen-reactive anode with high cost becomes a stumbling block. Here, the halogen migration in PSCs is utilized to in situ generate a uniform tunneling layer between the hole transport materials and anodes, which enriches the options of anodes by breaking the Schottky barrier, enabling the regular PSCs with both high efficiency and stability. Specifically, the regular PSC that uses silver iodide as the tunneling layer and copper as the anode obtains a champion power conversion efficiency of 23.24% (certified 22.74%) with an aperture area of 1.04 cm². The devices are stable, maintaining 98.6% of the initial efficiency after 500 h of operation at the maximum power point with continuous 1 sun illumination. PSCs with different tunneling layers and anodes are fabricated, which confirm the generality of the strategy.

钙钛矿太阳能电池（PSC）正在迈向商业化。然而，成本高昂的卤素反应阳极成为了绊脚石。这里，利用PSC中的卤素迁移在空穴传输材料和阳极之间原位生成均匀的隧道层，通过打破肖特基势垒丰富阳极的选择，使常规PSC具有高效率和稳定性。具体而言，使用碘化银作为隧道层、铜作为阳极的常规PSC在孔径面积为1.04 cm ²的情况下获得了23.24%（认证为22.74%）的冠军功率转换效率。该器件稳定，在连续 1 太阳光照下在最大功率点运行 500 小时后仍保持 98.6% 的初始效率。制备了具有不同隧道层和阳极的PSC，证实了该策略的通用性。