| 초록 |
Graphene/polyaniline/poly(4-styrenesulfonate) (G/PANI/PSS)-based conducting paste is successfully fabricated via mechanical blending. As a compatibilizer and binder, PSS increased dispersibility, interfacial interactions, and mechanical interlocking between a multilayer graphene matrix and PANI nanofiller, leading to uniform surface resistance and improved adhesion of the hybrid film to flexible substrate. Furthermore, the hybrid film by screen printing had a 6 % decrease in surface resistance under a folding angles of –30°, and it has increased by only 10 Ωsq−1 after 500 bending cycles. Especially, the high-resolution patterns could be formed due to high surface tension and grain property on domain structure. Moreover, G/PANI/PSS-based dipole tag antenna had a 28.7 MHz bandwidth, high transmitted power efficiency of 98.6 %, and 0.42 m recognition distance at 910 MHz mean frequency, which could be applied for signal receiving apparatus such as RFID tag detecting nearby objects. |
