Enhancing photocatalytic CO₂ reduction <i>via</i> a single-domain ferroelectric Z-scheme heterojunction of BiFeO₃/CsPbBr₃ inducing dual built-in electric fields

Abstract

A Z-scheme heterojunction designed via hot injection method enables growth of nanocrystals on nanosheets. This single-domain design causes a polarization electric field within the nanosheets and an electric field at the heterojunction interface. Both drive charge separation enhancing CO 2 reduction.