In Africa et al. (Sci Rep 7(1):3803, 2017) a step-by-step procedure was presented that enables to determine the density of states width, the carrier mobility and the injection barrier height of an OTFT structure by fitting data from simple measurements to suitable numerical simulations. At each step of the procedure only one parameter value is determined, thus highly simplifying the fitting procedure and enhancing its robustness. In this study we apply such procedure to p-type organic polymers. A very satisfactory fitting of experimental measurements is obtained, and physically meaningful values for the aforementioned parameters are extracted thus further confirming the soundness of the parameter extraction method.
