Controlled Assembly of Nanorod TiO₂ Crystals via a Sintering Process: Photoanode Properties in Dye-Sensitized Solar Cells

Figure 5

SEM images of the surface of TiO₂ nanoparticle porous layers made by different nanoparticle concentrations, after successive sintering. The nanoparticles deposited, using spin coating method, (a) 50 wt% SA-TiO₂ (b) 85 wt% SA-TiO₂.

(a)

(b)