Ultradurable Dye-Sensitized Solar Cells under 120°C Using Cross-Linkage Dye and Ionic-Liquid Electrolyte

Figure 7

FT-IR measurements of double-bond-edged dye-adsorbed TiO₂ nanoparticles before and after annealing; (a) 2700–3100 cm⁻¹ and (b) 1200–1900 cm⁻¹.

(a)

(b)