Photoresponse of Visible Light Active CM-n-TiO₂, HM-n-TiO₂, CM-n-Fe₂O₃, and CM-p-WO₃ towards Water Splitting Reaction

Figure 6

The monochromatic photocurrent density, 𝑗_𝑝(𝜆), as a function of wavelength of light, 𝜆, for samples 1, 2, 3, and 4, respectively [21–23].