Fig. 5: Effect of incident wavelength and applied potential on PEC processes.
From: Fundamentals and environmental applications of bismuth vanadate through photoelectrocatalysis

a Light-harvesting efficiency spectra of BiVO4/WO3 composite, BiVO4, and WO3 photoanodes. b Effect of wavelength on the photoelectrocatalytic oxidation of 1-phenyl ethyl alcohol. Adapted from Tateno et al.53.