| 초록 |
Conducting microfibers could be an essential element, especially for wearable electronics. Here, we present flexible and conductive microfibers fabricated by simple extrusion of dispersed solution with graphene oxide, silver nanowire, and agarose polymer. After extrusion and drying processes, the microfibers are chemically reduced by hydrazine vapor for reduction of the graphene oxide filler. The effect of different fillers and their compositions on the conductivity and mechanical property of the microfibers was investigated. By using both fillers together, we obtained the drastic improvement in conductivity of the microfibers up to 0.034 S/m without thermal treatment. Due to the enhanced conductivity of the microfibers and the catalytic ionization of water vapour by the fillers, the microfiber demonstrated the humidity-dependent resistance change, which could be used for sensor application. |
