Fig. 11
Energy band diagrams of CuO/SnO2 heterojunctions a before and b after exposure to H2S (Ef = Fermi-energy level, EC = conduction band and EV = valence band)
Fig. 11 | Nanoscale Research Letters
Energy band diagrams of CuO/SnO2 heterojunctions a before and b after exposure to H2S (Ef = Fermi-energy level, EC = conduction band and EV = valence band)