Harmonizing A‑Site Cation Incorporation With Conductive Grain‑Boundary Bridging for Durable Perovskite Solar Cells.
While perovskite solar cells (PSCs) have achieved significant progress in power conversion efficiency (PCE), their commercialization remains hindered by a critical challenge: irreversible efficiency degradation during device operation, primarily caused by the spontaneous degradation of the perovskite layer. The root of...