Fig. 2
From: Normal and inverted regimes of charge transfer controlled by density of states at polymer electrodes
Distribution of unoccupied and occupied states in polymer and electrolyte. The DOS of an e-P3HT film derived from the experimental oxidation current in cyclic voltammetry (purple curve, bottom axis) is shown next to simulated distributions of occupied (Red) and unoccupied (Ox) states in the electrolyte according to Eq. (3) and an analogous expression for unoccupied states, assuming equal concentrations of red and ox (green curves, top axis). Simulation parameters were E 0(FcDM0/+) ≈ E 1/2(FcDM0/+) = +0.07 V vs. Ag/Ag+, λ = 0.5 eV50, and T = 298 K. Occupancy of the P3HT DOS and hole transfer from polymer to the electrolyte are illustrated for the example of a Fermi level E f at −5.5 eV at the surface of the polymer electrode
