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Illustration shows the concept behind a microfiber nanogenerator. Microfibers coated with gold (yellow fibers) scrub the nanofibers that are not coated with gold (green) to produce electricity through a coupled piezoelectric-semiconductor process.
Georgia Tech Professor Zhong Lin Wang shows a microfiber nanogenerator composed of a pair of entangled fibers. Both fibers are coated with zinc oxide nanowires; one fiber is additionally coated with gold. When rubbed together, they generate electrical cur
A magnified SEM image of two microfiber brushes meeting "teeth-to-teeth." The top one is coated with gold and the bottom one is covered with zinc oxide nanowires. Electrical current is created when the fibers scrub together.