Research Article

Guest-Host Interactions in Symmetrical Carboxy Heptamethine Cyanine Dyes-Titanium Dioxide Systems: Synthesis, Theoretical Calculations, Aggregation Properties, and Application in Dye-Sensitized Solar Cells

Figure 2

Normalized (a–c) Vis-NIR and (d–f) fluorescence emission spectra in solution (10-6 M) of the carboxy heptamethine dyes 12-14.
(a)
(b)