Wittichenite semiconductor of Cu₃BiS₃ films for efficient hydrogen evolution from solar driven photoelectrochemical water splitting.

ABSTRACT: A highly efficient, low-cost and environmentally friendly photocathode with long-term stability is the goal of practical solar hydrogen evolution applications. Here, we found that the Cu₃BiS₃ film-based photocathode meets the abovementioned requirements. The Cu₃BiS₃-based photocathode presents a remarkable onset potential over 0.9 V_RHE with excellent photoelectrochemical current densities (~7 mA/cm² under 0 V_RHE) and appreciable 10-hour long-term stability in neutral water solutions. This high onset potential of the Cu₃BiS₃-based photocathode directly results in a good unbiased operating photocurrent of ~1.6 mA/cm² assisted by the BiVO₄ photoanode. A tandem device of Cu<

SUBMITTER: Huang D 

PROVIDER: S-EPMC8213846 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature