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 5

Natural transition orbitals for the vertical transitions S0⟶S1 and S1⟶S0 involving the ground and first excited states of cyanine 12 in PCM/methanol.