Fabrication of high-density large-area conducting-polymer nanostructures

The low-cost, large-scale fabrication of high-density conducting-polymer nanostructures is desirable for a variety of applications. We report the realization of high-density conducting-polymer nanostructures through a combination of nanoimprint lithography, a copolymer strategy, and a lift-off process. Atomic force microscopy and optical measurements reveal that the quality of the prepared structures is rather good, and a resolution of 100 nm is achieved. Electrical measurements show that the conducting-polymer nanowires are conductive and indicate great anisotropy in the parallel and perpendicular directions. Moreover, by further connecting them with larger electrodes, these nanowire arrays function as nanosensors.