Photoelectrochemical performance of a spin coated TiO₂ protected BiVO₄-Cu₂O thin film tandem cell for unassisted solar water splitting.

ABSTRACT: A tandem cell consisting of a Mo-BiVO₄/TiO₂/FeOOH photoanode-Cu₂O/TiO₂/MoS₂ photocathode was prepared for unassisted solar water splitting. The protective TiO₂ layer was prepared by a cost-effective spin coating technique. The individual Mo-BiVO₄/TiO₂/FeOOH photoanode and the Cu₂O/TiO₂/MoS₂ photocathode yielded a current density of ∼0.81 mA cm^-2 at 1.23 V vs. RHE and ∼-1.88 mA cm^-2 at 0 V vs. RHE, respectively under 100 mW cm^-2 xenon lamp illumination. From the individual photoelectrochemical analysis, we identify the operating points of the tandem cell as 0.66 V vs. RHE and 0.124 mA cm^-2. The positive curr

SUBMITTER: Sitaaraman SR 

PROVIDER: S-EPMC9627459 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature