| 초록 |
The effect of mechanical deformation of nano-fibers on the electrical conductivity is investigated by employing molecular simulations. The conductive polymer fiber has been an issue of interest for its potential application to a stretchable electronics. However, the electrical conductivity of the polymer-based stretchable electronics decreases significantly during the deformation, which may limit the applicability of the polymer/CNT fiber for the stretchable electronics. Moreover, its physical origin for the decrease in electrical conductivity has not been explained clearly. Not surprisingly, in our simulations the electric conductivity decreases during the elongation of the polymer/CNT fiber. We employ a critical path approximation (CPA) find that the structure of the electrical network of the CNTs changes collectively during the elongation of the fiber, which accounts for the reduction of the electrical conductivity of the polymer/CNT fiber. |
