| 초록 |
A triboelectric nanogenerator (TENG) is of interest as an emerging power harvester owing to its simple device architecture with high efficiency. A TENG with a switchable surface, which allows for facile control of the triboelectric output performance, remains a challenge. Here, we demonstrate a supramolecular assembled route for fabricating a novel TENG based on an alkali metal-bound nanoporous film. Our soft nanoporous TENG contains numerous SO3- groups on the surface of nanopores prepared from the supramolecular assembly. Selective binding of alkali metal ions with SO3- groups enables the development of mechanically robust alkali metal ion-decorated TENGs. The triboelectric output performance of the devices strongly depends on the alkali metal ion species. This wide-range triboelectric tuning can be achieved simply by a conventional ion exchange process in a reversible manner, thereby allowing reversible control of the output performance in a single device platform. |
