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Updated: May 1, 2026

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
Published on: May 15, 2017
Characteristics of small- and large-polaron motion in organic crystals
Frank Ortmann1, Friedhelm Bechstedt, Karsten Hannewald
1CEA Grenoble, INAC/SPrAM/GT, Grenoble, France.
Abstract:
Based on a generalized theory of charge transport in organic crystals we investigate the motion of polarons of arbitrary size. Within this theory, we analyze the influence of characteristic electronic, vibronic, and thermal energies and their role for the transport regimes. The polaron bandwidth is identified as the central temperature-dependent quantity. The size of the dressed charge carriers is used to analyze the correlation between the polaron size and transport mechanism. In addition, we propose that the band and hopping transport can be distinguished by investigating the mobility anisotropy. To do this only electronic structure parameters are necessary for comparison.
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