Fig. 5: Sb3Se3 photocathode–BiVO4 photoanode for solar overall water splitting PEC cell.
From: Benchmark performance of low-cost Sb2Se3 photocathodes for unassisted solar overall water splitting
a Scheme of the NiFeOx/H,Mo:BiVO4/FTO–Pt/TiO2/CdS/Sb2Se3/Au/FTO tandem cell operating in pH 7.0 phosphate buffer. b J–V curve for the photocathode and photoanode; the operating point is marked for the tandem cell (photoelectrode active area: 0.32 cm2). c Two-electrode measurements for photoanode–counter electrode (C. E.) and photoanode–photocathode tandem cells (active area: 0.28 cm2). d IPCE at 0.4 VRHE measured for the photoanode and photocathodes. e Photocurrent generation under short circuit conditions (0 against counter electrode) of the photoanode–photocathode tandem cell. All analyses were conducted in 0.5 M phosphate buffer + 0.01 M V2O5 (pH 7.0) at a scan rate of 20 mV s−1. Distance between the photoanode and photocathode was ~0.5 cm. Source data used to generate this figure can be found in the Source Data file.
