Enhancement of rotary triboelectric nanogenerator (TENG) frictional charge with rotor angular speed control

A Triboelectric nanogenerator (TENG) is a capacitive energy harvesting technology based on contact electrification and electrostatic induction. When rubbing two surfaces of triboelectric materials with different electronegativities will generate frictional charges on the surfaces. The rotary TENG model consisting of a rotor and a stator with different dielectric film surfaces has a good energy conversion efficiency level to harvest mechanical energy. An increase in the angular velocity of the RF-TENG rotor can increase the generation of frictional charges by 0.53%. The stability of rotor angular velocity results in the stability of mutant generation and frictional charge transfer on the film surface. This shows the TENG has high conversion efficiency to convert small and large mechanical input energy.