Abstract
Triboelectric nanogenerators are used to convert all kinds of mechanical vibrations such as human motions, vibrations from industrial machinery, automobiles, etc. into useful electrical energy. In this paper, we compared two design methods of efficient energy harvesting systems in vertical contact-separation and lateral-sliding mode with respect to their implementation and experimental results. We have demonstrated the charging behavior of two modes of TENG using polytetrafluoroethylene (PTFE), aluminium, and copper used as triboelectric materials. We have observed a maximum open circuit voltage of 4.9 V across 4.7 µF capacitor, maximum energy of 270 µJ/cm−3 across 100 µF capacitor, and maximum output power of 0.9 µW across 4.7 µF load capacitor with 7.8 MΩ load resistor in vertical contact-separation mode.
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