Implanting Crystal Nuclei at the Buried Interface to Regulate the Growth of Inorganic Perovskite for High‐Performance Solar Cells

, the power conversion efficiency of modified inorganic perovskite solar cells (PSCs) increases from 19.84% to 22.22%, with a voltage deficit of only 0.44 V. Furthermore, PSCs still maintain 91.5% of its initial value after continuous operation at maximum power point tracking and illumination for 800 h.