Journal Article Research Support, Non-U.S. Gov't perovskite solar cells D‐A coupling optimization covalent organic framework electron mobility electron transport layers environmental stability gold clusters halogen circulation high-performance hybrid perovskites image reconstruction interfacial loss interlayer shifting control ion migration laser fragmentation lateral heterostructure limited-angle range liquid metal colloids modified discrete algebraic reconstruction technique (MDART) multiple grey image nanoribbon p-n heterointerfaces particle boundaries phase segregation photodetector proton‐mediated topology pulsed laser irradiation semiconductor