SOLVENT VAPOR-MEDIATED POLY (3-HEXYLTHIOPHENE) NANOWIRE FORMATION AND ITS EFFECT ON FIELD-EFFECT MOBILITY

摘要

One-dimensional (1D) self-organization of π-conjugated polymers on insulator substrates offers a unique strategy for the fabrication of stable, well-defined nanoscale structures with chemical functionalities and physical properties that are of potential use as active components in organic field-effect transistors (OFETs). The high field-effect mobility, stability, and solution-processability of regioregular poly (3-hexylthiophene) (P3HT) strands have stimulated much interest, particularly in their utilization as active electronic elements in various thin film devices and sensors. One can anticipate that the efficiency of charge transport will profit from a better control of structural order with strong π-π interaction due to 1D supramolecular self-organization and in turn to higher field-effect mobilities.