Anodic Titanium Oxide Layers Modified with Gold, Silver, and Copper Nanoparticles

Figure 5

Photocurrent density as a function of incident light wavelength and applied potential recorded in 0.1 M KNO₃ for the ATO layers annealed at 500°C (a) and decorated with copper (b), gold (c), and silver (d) nanoparticles. IPCE values obtained at 0, 0.5, and 1 V vs. SCE for bare ATO and ATOs decorated with noble metals (e).

(a)

(b)

(c)

(d)

(e)