| 초록 |
A graphene/polyaniline/poly(4-styrenesulfonate) (G/PANI/PSS)-based conducting paste is successfully fabricated by introducing a PANI/PSS nanofiller into a multilayer graphene matrix by mechanical blending. The incorporation of high concentrations of PSS, which acted as a compatibilizer and binder, by ex situ polymerization allowed for uniform surface resistance and good adhesion to a flexible substrate. The minimum surface resistance of the screen-printed G/PANI/PSS hybrid film with a 70 μm uniform thickness is approximately 10 Ω sq-1, and the resistance is increased only by 10 Ω sq-1 after 500 bending cycles. With its high electrical conductivity and structural flexibility, the G/PANI/PSS hybrid film is used as the electrode in a dipole tag antenna; the hybrid film-based tag antenna was implemented at a center frequency of 910MHz and boasted a high transmitted power efficiency of 98.5% with a 0.42 m recognition distance. |
