(Photo)electrochemical Methods for the Determination of the Band Edge Positions of TiO2-Based Nanomaterials
Figure 4
Schematic view of the electric double layers at the n-type semiconductor/aqueous electrolyte interface (a) with corresponding charge (b) and potential (b) distributions. is the potential drop across the space-charge layer, is the potential drop in the Helmholtz layer, and represents the drop in the Gouy-Chapman layer; (d) the equivalent circuit for the interface assuming that can be neglected.