Fabrication, assembly, and electrical characterization of CuO nanofibers

Abstract

The authors report on the assembly and electrical properties of ultralong copper oxide (CuO) nanofibers prepared by electrospinning method. The prepared CuO nanofibers were polycrystalline, with diameter of ∼60nm and length over 100μm. By a specially designed fiber collector, single CuO nanofiber field-effect transistor (FET) was assembled directly. Electrical transport measurement was conducted on the nanowire FET device, showing that CuO nanofibers are intrinsic p-type semiconductor. Electrospinning is thus proposed as a simple and low-cost method of fabricating one-dimensional semiconductive ceramic FETs.