Theoretical Insight into Organic Dyes Incorporating Triphenylamine-Based Donors and Binary 𝝅-Conjugated Bridges for Dye-Sensitized Solar Cells

Figure 2

The frontier molecular orbitals of sensitizers C219, 𝐂𝟐𝟏𝟗^′, 4, and 𝟒^′. Isodensity contour = 0.02.