Figure 6

Photoelectrochemical characteristic of the photoelectrode. Current-potential curves for the prepared BVO film, acting as photoanode. Measurement conditions: active area of 0.2 cm², and 0.5 M Na₂SO₄ electrolyte (pH = 6.6). Light Source: Xe Lamp (λ > 450 nm, 100 mW cm⁻²), scan rate of 20 mV s⁻¹ from low to high potential, in back illumination mode.