Diffusion-Driven Macromolecular Self-Organization Enables Conformal Perovskite/Silicon Tandems.
Industrial deployment of perovskite/silicon tandem solar cells is limited by the difficulty of forming thick, defect-controlled wide-bandgap (WBG) perovskite layers that conformally coat micron-textured silicon while retaining interfacial passivation. Here, we introduce a diffusion-driven macromolecular passivation str...