Constructing Cascade Built-In Electric Fields via Dual-Epitaxial Heterointerfaces for Photocatalytic CO2-to-C2H4 Conversion.
Constructing heterojunctions with built-in electric fields (BIEFs) has emerged as an effective strategy to enhance charge separation in photocatalytic CO2 reduction. However, the photocatalytic activity and C2+ selectivity of current copper oxide-based heterojunctions remain insufficient for practical applications, lar...