Antibacterial Activity of Visible Light-Activated TiO₂ Thin Films with Low Level of Fe Doping

Figure 5

3D AFM images of (a) bare TiO₂ films and (b) 0.1 at% of Fe-doped TiO₂ films; 2D AFM images of (c) TiO₂ films and (d) 0.1 at% of Fe-doped TiO₂ films.

(a)

(b)

(c)

(d)