Fully flexible, foldable nanopatterned wearable triboelectric nanogenerator (WTNG) with high power-generating performance and mechanical robustness have been designed by researchers from the SKKU Advanced Institute of Nanotechnology (SAINT) (Korea). Triboelectric is an electrical charge produced by friction between two objects that are nonconductive. Very high voltage and current outputs with an average value of 170 V were obtained from a four-layer-stacked WTNG. The researchers created a novel tribo electric nano generator fabric out of a silvery textile coated with nanorods and a silicon-based organic material.
When they stacked four pieces of the cloth together and pushed down on the material, it captured the energy generated from the pressure. The material immediately pumped out that energy, which was used to power light-emitting diodes, a liquid crystal display and a vehicle’s keyless entry remote. The cloth worked for more than 12,000 cycles.