Modelling of the dependence of charge transport in organic layer, containing crystallites, on the layer morphology

A Monte Carlo simulation of the charge carrier mobility in a polymer layer with a thickness of about 100 nm, containing both nanosized crystallites and disordered (amorphous) regions, has been carried out. The mobility has a maximum at a certain energy depth of crystallites. The mobility increases along with an increase in the fraction of crystallites and can exceed its value for the case of disordered material by several orders of magnitude.