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 μm.
DI CARLO, A., Piacenza, F., Bolognesi, A., Stadlober, B. (2005). Influence of grain sizes on the mobility of organic thin-film transistors. APPLIED PHYSICS LETTERS, 86(26) [10.1063/1.1954901].
Influence of grain sizes on the mobility of organic thin-film transistors
DI CARLO, ALDO;
2005-01-01
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 μm.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
