Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure
Figure 6
CV characteristics measured under 100 mW/cm2 UV-Vis illumination: (A) (a) FTO glass, (b) TiO2/FTO, and (c) Fe2O3/FTO samples were investigated after heat treatment at 500°C for 10 min in the air, (B) Fe2O3/TiO2/FTO samples were become heat treated for 10 min in the air at (a) 420°C, (b) 500°C, and (c) 550°C, (C) (a) Fe2O3/TiO2/FTO and (b) TiO2/Fe2O3/FTO heat treated at 500°C for 10 min in the air, and (c) Fe2O3/TiO2/FTO sample double heat treated, corresponding to (d) in Figure 3.
