Electronic Material Characterisation for Applications in Triboelectric Nanogenerators

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Triboelectric nanogenerators (TENGs) operate through coupling contact electrification and electrostatic induction to provide power and self-powered sensing capabilities for industry applications. This research involves devising a methodology for characterising and optimising the triboelectric properties of materials through kelvin probe microscopy on the nanoscale, and through modifying a tribometer to correlate tribological and triboelectric material properties on the macroscale.Three types of application for TENGs are reported; power generation, self-powered devices and self-powered sensing. TENGs are considerably more flexible in terms of device construction than electromagnetic generators. Specific applications have included self-powered microphones, implantable medical devices and keystroke identification. Current research focuses on optimising the output characteristics of TENGs.