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Theory of the field-effect mobility in amorphous organic transistors

M. C. J. M. Vissenberg·M. Matters
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Abstract

The field-effect mobility in an organic thin-film transistor is studied theoretically. From a percolation model of hopping between localized states and a transistor model an analytic expression for the field-effect mobility is obtained. The theory is applied to describe the experiments by Brown et al. [Synth. Met. 88, 37 (1997)] on solution-processed amorphous organic transistors, made from a polymer (polythienylene vinylene) and from a small molecule (pentacene). Good agreement is obtained, both with respect to the gate-voltage and the temperature dependence of the mobility.

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M. C. J. M. Vissenberg, M. Matters. 1998-02-12. Theory of the field-effect mobility in amorphous organic transistors. https://doi.org/10.1103/physrevb.57.12964

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