In this paper, a two-way conduction mechanism in doped polyacetylene is proposed. The charge transport in direction of perpendicular to the PA chain is realized by the vibrational motion of the dopant between the PA chains, and the charge transport in direction of parallel to the PA chain is realized by the propagation of charge density wave along the PA chain. The conductivity of doped PA increases as the increase of the amount of charge transfer between the dopant and the PA chain.

Key words: DOPE, POLYACETYLENE, CHARGE TRANSFER, ELECTRICAL CONDUCTIVITY