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Abstract
A model description, previously used for computer simulation studies of charge carrier transport phenomena in polyacene crystals, has been extended to α-perylene crystals. A modified Sano-Mozumder (SM) model has been used for simulation of reported experimental carrier transport characteristics as a function of electric field E and temperature T, both in the hot and in the thermalized carrier regime. The present studies demonstrate the plausibility of a nearly small molecular polaron (MP) model approach to describe phenomenologically the negative charge carrier separation and transport phenomena in α-perylene crystals over a wide temperature (30–300 K) and electric field (10 3–10 5 V/cm) range. On the other hand, the behaviour of positive charge carrier transport characteristics in α-perylene indicates small lattice polaron (LP) formation.
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