Abstract
Nature of charge carriers in organic molecular crystals In organic molecular crystals (OMC) the domination of molecular properties over the crystalline ones, caused by the weakness of van der Waals intermolecular interaction, leads to a marked tendency of charge carrier localization at room temperature on individual molecules of the crystal [1, 2, 3]. During a typical residence time τ h , in anthracene (Ac) type crystals, the localized charge carrier manages to polarize the electronic and nuclear subsystems of the surrounding lattice. As a result of such manyelectron interaction the charge carrier emerges as a heavy polaron type quasi-particle, viz. as electronic, molecular, and in some specific cases as lattice polaron [3].
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