Universal Crossover from Band to Hopping Conduction in Molecular Organic Semiconductors
- 23 April 2001
- journal article
- retracted article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 86 (17), 3843-3846
- https://doi.org/10.1103/physrevlett.86.3843
Abstract
The charge transport in a variety of herringbone-stacked organic molecular semiconductors is investigated in the temperature range from 10 to 550 K. A crossover from coherent bandlike charge transport with mobilities up to several thousand at low temperature to an incoherent hopping motion at high temperatures is observed. This is attributed to the localization of the charge carrier due to increased electron-phonon interaction and, finally, the formation of a lattice polaron.
Keywords
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