Abstract
Solvent vapor atmosphere is introduced for solution-evaporated poly(3-hexylthiophene) (P3HT) formation in fabricating organic field-effect transistors (OFETs). As changing the solvent vapor atmosphere, prominent influences on the assemblies of P3HT nanowires during solidification were represented, leading to the difference in nanostructure morphologies. We demonstrated that the device fabricated under anisole solvent vapor atmosphere is superior in electrical performance to that of the devices fabricated under other conditions. In this process, anisole solvent vapor atmosphere transparently facilitated one-dimensional (1D) self-assembly through π–π stacking interaction among the P3HT units during solidification.
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