Convenient Fabrication of Fine Electrodes for Electric Measurement of Nanofibers by Nanoimprint Lithography

We fabricated fine electrodes conventionally by nanoimprint lithography (NIL) to measure the electric properties of nanofibers and showed the performance of fine electrodes by the field-effect transistor (FET) measurement of a semiconducting polymer nanofiber. Furthermore, we performed the FET measurement of regioregular poly(3-hexylthiophene-2,5-diyl) (rr-P3HT) nanofibers using fabricated fine electrodes. As a result, the mobility was estimated to be $1.32\times 10^{-3}$ cm 2 V -1 s -1 , which was on the same order as that reported previously. The fabrication method was clarified to be effective for molecular electronics.