Monolithic FAPbBr₃ photoanode for photoelectrochemical water oxidation with low onset-potential and enhanced stability.

ABSTRACT: Despite considerable research efforts on photoelectrochemical water splitting over the past decades, practical application faces challenges by the absence of efficient, stable, and scalable photoelectrodes. Herein, we report a metal-halide perovskite-based photoanode for photoelectrochemical water oxidation. With a planar structure using mesoporous carbon as a hole-conducting layer, the precious metal-free FAPbBr₃ photovoltaic device achieves 9.2% solar-to-electrical power conversion efficiency and 1.4 V open-circuit voltage. The photovoltaic architecture successfully applies to build a monolithic photoanode with the FAPbBr₃ absorber, carbon/graphite conductive protection layers, and NiFe catalyst layers for water oxidation. The photoanode delivers ultralow onset pote

SUBMITTER: Yang H 

PROVIDER: S-EPMC10484934 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature