Ag-Doped TiO₂ Nanotube Arrays Composite Film as a Photoanode for Enhancing the Photoelectric Conversion Efficiency in DSSCs

Figure 3

The typical SEM images of the Ag-doped TNT arrays composite film photoanode after annealing at 450°C for 30 min in the top-view (a) and in cross-sectional view (b).

(a)

(b)