The microstructure of thin deposits of poly(3-hexylthiophene) on silicon
surfaces is investigated as a function of the solution concentration, the
maturation time and the solvent nature, with the aim of generating one
monolayer of P3HT nanofibers on the surface. These films are then exposed to
a NOPF6 solution, in order to oxidize the conjugated system and to
produce conducting nanostructures. The effect of the chemical doping on the
microscopic morphology and the electrical properties is analyzed on the
basis of AFM and I-V measurements.