Tuning Anatase-Rutile Phase Transition Temperature: TiO₂/SiO₂ Nanoparticles Applied in Dye-Sensitized Solar Cells

Figure 1

TEM images of S0, S3, S5, and S10 before (a–d) and after (e–h) thermal treatment.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)