Rotating-disk-based hybridized electromagnetic-triboelectric nanogenerator for scavenging biomechanical energy as a mobile power source

We report a rotating-disk-based hybridized nanogenerator that consists of an electromagnetic generator (EMG) and a triboelectric nanogenerator (TENG) for simultaneously scavenging biomechanical energy from one rotating motion. The generated electrical energy of the hybridized nanogenerator is more than twice of that generated by an individual nanogenerator (EMG or TENG). The hybridized nanogenerator can be utilized to effectively harness the biomechanical energy from a human hand induced rotating motions for sustainably driving a commercial globe light with the illumination intensity up to 1700 lx, which can provide enough illumination for reading printed text or other uses in the wild.296