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Strong, Long, Electrically Conductive and Insulated Coaxial Nanocables

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journal contribution
posted on 22.05.2019, 00:00 by Aykut Aydin, Lu Sun, Xian Gong, Kasey J. Russell, David J. D. Carter, Roy G. Gordon
Nanowires have found many applications over the past couple of decades, but existing fabrication methods can only make very short nanowires. We present a new method for making very strong, flexible, and centimeter long nanowires on polymer nanofibers. Single nanofibers of poly­(m-phenylene isophthalamide) with diameters in the range of 300–600 nm were prepared by electrospinning onto a rotating collector. These nanofibers were coated coaxially with a variety of metals and insulators to illustrate the materials generality of the methodology. The flexibility and compatibility with high-temperature deposition conditions (up to 350 °C) offered by this nanofiber scaffold pave the way for future nanowire applications enabled by increased lengths.