| 초록 |
In this work, self-standing, highly flexible, and conductive poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS)-cellulose nanofiber (CNF) composite films were developed using a simple vacuum-assisted filtration method. Two different composite films were successfully fabricated and then tested: 1) a single-layer composite composed of a mixture of PEDOT:PSS and CNF phases (SF) and 2) a bilayer composite composed of an upper PEDOT:PSS membrane layer and a CNF matrix sublayer (BF). Our results demonstrated that the resultant bilayer composite film exhibited a competitive electrical conductivity compared to a single-layer composite. Furthermore, a decrease in the electrical properties was not almost observed in the composite films when they were bent up to 100 times at an angle of 180o and bent multiple times at an angle of 90o, clearly demonstrating its excellent mechanical flexibility. |
