Electro-optical characterisation of field effect devices with regioregular poly-hexylthiophene active layers

1999 
Abstract Regioregular poly-hexylthiophene (P3HT) is currently one of the most promising active materials for high-mobility polymer field-effect transistors with mobilities reaching 0.05–0.1cm 2 /Vs. P3HT is a soluble, but highly ordered rigid-rod like polymer with phase separated hexyl side chains. In order to understand the transport physics of this high mobility polymer we present a careful study of the relationship between transistor performance and the electronic properties of the polaronic charge carriers probed by electro-optical modulation spectroscopy.
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