| 초록 |
Recent attention to triboelectric nanogenerators due to high output power, low cost, and easy fabrication is growing in the need for more efficient energy harvesting of mechanical energy which exists everyday in a form of human motions. Conventional way to increase the output of triboelectricity was to create more surface area by introducing intaglio or embossed structure; however, it is limited due to the surface area loss which does not contribute to contact area. Here, in order to achieve conformal contact, we report highly thin continuous Poly(dimethylsiloxane) (PDMS) film introduced on micropillar via adhering of viscous solution and transfer of cured PDMS. Compared to pillar-only structure, the fabricated structure enlarges the actual contact area and results higher output voltage and current. Since wide area has been contacted effectively, even weak stimulus such as low force and low frequency becomes possible to generate power through contact electrification. |
