Study on Surface-Enhanced Raman Scattering Substrate Based on Titanium Oxide Nanorods Coated with Gold Nanoparticles

Figure 1

FESEM images of TiO_x-NRs, which were made by different concentrations of HCl: (a) 4 M, (b) 5 M, (c) 6 M, and (d) the cross section of (b).

(a)

(b)

(c)

(d)