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

Figure 3

X-ray diffraction patterns of (a) bare TiO₂, (b) 0.1 at%, (c) 0.5 at%, (d) 1.0 at%, and (e) 2.0 at% of Fe-doped TiO₂.