Laser-Defined Reaction Topology Enables Controllable Solid-State Transformations for Scalable Perovskite Photovoltaics.
Controlling reaction pathways in solids is critical for scalable semiconductor fabrication, yet remains fundamentally challenging in solution-processed systems due to constrained mass transport and diffusion-limited conversion. In perovskite photovoltaics, the widely adopted sequential two-step deposition method is par...