Micropatterned Stretchable Circuit and Strain Sensor Fabricated by Lithography on an Electrospun Nanofiber Mat

摘要: This paper describes a novel approach for composite nanofiber mats and its application to fabricate strain sensor. Electrospun poly(4-vinylpyridine) (P4VP) are micropatterned by lithographic that includes selective oxidation of the nanofibers removal unreacted fibers. The P4VP/HAuCl4 complex is converted P4VP/Au composites chemical reduction. We investigate electrical resistivity according number complexation-and-reduction cycles, thickness fiber mats, annealing temperatures which control percolation Au nanoparticles in mats. Nozzle printing polymeric solution on patterned simply produces an array strain-sensitive strain-invariant units. patterns demonstrate high strain-sensing performance without any mechanical failure over 200 bending cycles range e < 0.17.