On the mechanism of charge transport in pentacene
van Laarhoven, Hendrik A.; Flipse, Cees F. J.; Koeberg, Mattijs; et al.Bonn, Mischa; Hendry, Euan; Orlandi, G.; Jurchescu, O. D.; Palstra, T. T. M.; Troisi, A.
Date: 23 July 2008
Article
Journal
Journal of Chemical Physics
Publisher
American Institute of Physics
Publisher DOI
Abstract
Terahertz transient conductivity measurements are performed on pentacene single crystals, which directly demonstrate a strong coupling of charge carriers to low frequency molecular motions with energies centered around 1.1 THz. We present evidence that the strong coupling to low frequency motions is the factor limiting the conductivity ...
Terahertz transient conductivity measurements are performed on pentacene single crystals, which directly demonstrate a strong coupling of charge carriers to low frequency molecular motions with energies centered around 1.1 THz. We present evidence that the strong coupling to low frequency motions is the factor limiting the conductivity in these organic semiconductors. Our observations explain the apparent paradox of the “bandlike” temperature dependence of the conductivity beyond the validity limit of the band model.
Physics and Astronomy
Faculty of Environment, Science and Economy
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