TABLE 3.
Sample | Absorption (nm) | Emission (nm) | Sν (from gap ex vs. em) (cm−1) | Sν (from the Stokes shift) (cm−1) |
---|---|---|---|---|
Lhca3 | 704.8 | 725 | 280 | 200 |
Lhca4 | 707.8 | 733 | 325 (350) | 240 |
Lhca1–4 | 709.3 | 732.5 | 325 | 230 |
The gap between the excitation and the emission maximum upon excitation at the very red edge of the absorption spectra (region where the slope s = 1) provides the values for the reorganization energy. Sν from the Stokes shift was calculated using Stokes shift = 2Sν (see text).