Effect of Carbon Modification on the Electrical, Structural, and Optical Properties of TiO₂ Electrodes and Their Performance in Labscale Dye-Sensitized Solar Cells

Figure 6

Raman spectroscopy of the C:TiO₂ QDs synthesized by PSP technique showing (a) the presence of carbon D and G bands in the 6-nm QDs, (b) the major anatase peak at 153 cm⁻¹ shifted from the pure bulk TiO₂ peak at 143 cm⁻¹, and (c) the present confinement model fitted to the 6-nm particles data.

(a)

(b)

(c)