Influence of grain sizes on the mobility of organic thin-film transistors
- 21 June 2005
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 86 (26)
- https://doi.org/10.1063/1.1954901
Abstract
A mobility model for organic thin-film transistors (OTFTs) has been considered that fully accounts for the effect of grains and grain boundaries of the organic layer. The model has been applied to a top contact pentacene OTFT. Comparison between simulation results and experimental data shows a strong dependence of mobility as a function of grain size. The field-effect-extracted mobility is not linearly related to the grain size, but presents a rather abrupt reduction for a grain size smaller than 2 μmKeywords
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