Synergistic Role of Facet-Engineered Surface and Ferroelectric Polarization in Photoelectrochemical Water Reduction over Pure BiFeO₃ Thin Film.

ABSTRACT: Ferroelectric semiconductors have drawn significant attention in photoelectrocatalysis due to their spontaneous ferroelectric polarization, facilitating charge separation and transfer by shielding charge recombination. Nevertheless, the impact of the facet-engineered surface and ferroelectric polarization direction on the polarization strength of a ferroelectric material, surface band bending at the ferroelectrics/electrolyte interface, and charge transport property remains vague. Here, we synthesized p-type BiFeO₃ (BFO) epitaxial thin films by controlling the (001)-facet and (111)-facet, as well as the upward polarization (P_up) and downward polarization (P_down) to systematically investigate ferroelectric polarization-induced internal electric field (E</

SUBMITTER: Chu MW 

PROVIDER: S-EPMC12356542 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature