| 초록 |
Recently, cellulose nanofiber (CNF)-based composites with functional conductive materials or metal nanoparticles have garnered considerable attention due to their potential use in the optoelectronic applications. In this work, two types of CNF based functional composite materials were successfully fabricated using a simple vacuum-assisted filtration and then characterized: 1) PEDOT:PSS/CNF composite film as a self-standing, flexible, and conductive electrode and 2) gold nanoparticles (AuNPs) embedded CNF as a surface-enhanced Raman scattering substrate. The former PEDOT:PSS/CNF composite film exhibited a competitive electrical conductivity (ca. 22.6 S cm-1) as well as almost identical electrical resistance when it was bend multiple times to nearly 90° at the same time, indicating excellent mechanical flexibility. The latter AuNPs/CNF composite SERS substrate have showed considerable promise for highly sensitive detection of representative chemical hazards. |
