| 초록 |
Ultrathin film graphene-polymer nanocomposites demonstrate the ability to make highly stretchable and electrically conductive thin films as a potential organic electrode using facile and cost-effective layer-by-layer (LbL) assembly of graphene nanoplatelets (GNPs), stabilized with poly(4-styrenesulfonic acid), and assembled with poly(vinyl alcohol). These unique thin films are potentially useful as flexible electrodes for a variety of electronic applications. One possible application is a graphene strain sensor. Another application can be a triboelectric nanogenerator (TENG) by the different triboelectricity between a graphene LbL electrode and a flexible plastic substrate. A graphene LbL electrode is used not only as an electrode but also as a charging material, so that a simple structure of TENG can be produced. Graphene LbL thin films were coated on various substrates (bare PET, NaOH-etched PET, cotton fabric, etc.) for flexible and/or wearable TENGs. |
