Abstract
Using an integrated meso-scale simulation methodology, the morphology and electrical conductivity relationship of the poly(ethylene-dioxy)thiophene/poly-styrenesulphonate (PEDT/PSS) complex in the range of PSS/PEDT mass ratios 1.4–20 has been established. The morphology presented as a density field has been generated by dynamic density field theory-based MesoDyn simulation code for all systems taking into account the substrate surface effect. Generated anisotropic morphologies have been characterised by the modified anisotropy parameter Q i and Q Di values indicating the anisotropy along the system diagonals and coordinates, respectively. Based on the hopping mechanism of the conductivity, the values of the percolation-related critical parameter are identified and correlated with the macroscopic in-plane (∥) and out-of-plane ( ⊥ ) electrical conductivities, relative to the substrate surface. These macroscopic conductivities are also calculated accurately by applying the Kirchoff laws to the respective random resistor networks. The results are in a reasonable agreement with the available experimental data.
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