Tuning the anisotropic facet of Cu₂O single-crystals for photocarrier spatial segregation.

ABSTRACT: Precise design of anisotropic facets is a key strategy for modulating semiconductor photoelectrochemical (PEC) performance, but it still faces significant challenges. In this work, we proposed an approach to modulate Cu₂O photoelectrodes based on triple engineering, including morphology, defect state, and crystal facet engineering, which promoted photocarrier separation through rational design of anisotropic facets. By controlling the precursors, six Cu₂O photoelectrodes with anisotropic facet structures and different oxygen vacancy (O_V) contents were obtained. The prepared Cu₂O photoelectrodes exhibited significant negative photocurrent responses to H₂O₂ catalyzed by the sandwich immunoenzyme, which enabled the development

SUBMITTER: Tian S 

PROVIDER: S-EPMC12679480 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature