ECG determines the potential-dependent conductivity, the differential capacitance, and the total injected charge. By measuring the amount of charge injected or withdrawn from the film within each single potential step, the differential capacitance contains information about the density of states. At the end of each potential step, the steady-state conductivity is measured, which allows the distinction between mobile or trapped charge carriers. The accumulated charge is determined by integrating the differential capacitance over the whole potential scan range, providing information on the reversibility of the charge injection. graph. The respective backward scans starting from the reductive or oxidative potential and going back to the OCP, are presented as dotted lines. For oxidative scans, we observe that both, the differential capacitance and the steady-state conductivity, change immediately. The differential capacitance starts to increase directly (Figure ), indicating an immediate removal of electrons, while the conductivity decreases (Figure ). At a potential of 0.25 V, the differential capacitance passes through a maximum and the conductivity drops more sharply.