Application of Halide Perovskite Nanocrystals in Solar‐Driven Photo(electro)Catalysis

Photo(electro)catalysis (PEC) is a promising strategy to conduct attractive solar-driven reactions such as CO2 reduction form added-value products, H2 production, and organic substrates oxidation, taking advantage of the spatial separation photocarriers generated in semiconductor-based electrodes. Halide perovskite nanocrystals (PNCs) are attracting increasing attention due their tunable optical features band structure, which pivotal modulate oxidizing/reducing power perform chemical efficiently. However, defective structure ionic nature PNCs make them prone be unstable polar media, where most relevant interest take place. In this review, an overview recent strategies stabilize solvents presented, some with application or already introduced PEC systems. Perovskite encapsulation, including formation heterostructures, surface passivation engineering, synthesis intrinsic stability focused upon. Furthermore, perspectives for using stable lead-free showing benefits future technology energy production/transformation.