Phys. Rev. B 57, 12964–12967 (1998)Theory of the field-effect mobility in amorphous organic transistorsReceived 13 January 1998; published in the issue dated 15 May 1998 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, with respect to both the gate voltage and the temperature dependence of the mobility. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.57.12964
DOI:
10.1103/PhysRevB.57.12964
PACS:
72.80.Le, 85.30.Tv
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