DEVELOPMENT OF BIDIRECTIONAL DIRECT CURRENT TRIBOELECTRIC NANOGENERATOR

The development of the bidirectional direct current triboelectric nanogenerator (BDC-TENG) to be used as self-powered sensor in the application of electronic skin is investigated. Several dielectric materials were used to slide on each other to generate the feedback signal by triboelectrification. The performance was enhanced by induction introduced by permanent magnets wrapped by copper coils. In the present study, BDC-TENG is proposed to generate voltage, where the direction of the electric current depends on the sliding direction. The experiments showed that voltage remarkably increased with increasing the intensity of the permanent magnet inserted under the friction surface. Significant voltage increase was observed when the number of turns wrapped on the magnet increased. It is recommended to develop the design of BDC-TENG by inserting permanent magnet wrapped by copper coil to increase the induction in the sliding area. The proposed BDC-TENG can be suitable to be applied in e-skin design as a self-powered sensor.