Organometal Halide Perovskite‐Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting (Adv. Sci. 33/2023)

Photoelectrochemical Water Splitting In article number 2303106, Heejoo Kim, Sanghan Lee, and co-workers report organometal halide perovskite (OHP)-based photoelectrochemical (PEC) module systems for scalable unassisted solar water splitting. The scalability of OHP-based PEC systems is significantly limited by resistive losses and intrinsic defects in devices. In this respect, the OHP-based PEC module systems overcome scalability issues with a simple but effective design, providing a promising strategy for their future practical application and commercialization.