Figure 4.

(a) Kinetics of P10 polaron Raman band at 847 cm^–1 following 400 nm excitation. P10 powder (no electron donor) data are shown with red circles, and data with a MeOH/TEA/H₂O sacrificial electron donor are shown with black squares. The parameters of the fit lines are described in the text and Table S5. The data are normalized (to 0, 1) to allow easy comparison to the Raman kinetics of P10 in the absence of the sacrificial electron donor. The kinetics of the 847 cm^–1 bands are baseline corrected by taking the difference in Raman scatter at 847 and 928 cm^–1, where no transient bands are present.