The CdS/CdSe/ZnS Photoanode Cosensitized Solar Cells Basedon Pt, CuS, Cu2S, and PbS Counter Electrodes
Figure 5
(a) Relative energy levels of TiO2, CdS, CdSe, and ZnS in bulk phase, (b) the proposed energy band structure of the TiO2/CdS/CdSe/ZnS nanostructure interface. All the energy levels are referenced to NHE scale. CB and VB are conduction band and valence band [16, 19].
