Experimental investigation shows enhanced water splitting performance using a silicon-based photoanode, suggesting a novel approach for solar energy conversion.
Key Points
The study aims to explore the potential of a silicon-based photoanode using a Z-scheme system for enhanced water splitting efficiency.
Fabrication of an n-Si/Pt/Mo-doped BiVO4 sandwich-like film.
Integration of an intermediate carrier transfer layer.
Theoretical calculations combined with experimental approaches to assess performance.
Assessment of anodic displacement current and photocurrent density.
Achieved a photocurrent density of 1.56 mA/cm2 under negative voltage (−0.57 V vs. RHE).
Demonstrated a photogenerated voltage five times higher than conventional n-Si/Mo: BVO structure.
Confirmed that enhanced performance is attributable to the Z-scheme transport processes.