Dielectric relaxation under pressure in granular dielectrics containing water: Compensation rule for the activation parameters (original) (raw)

Despite the high electrical conductivity of optically transparent organic semiconductor films, their structural and electrical heterogeneity induces capacitance effects. Broadband Dielectric Spectroscopy (BDS) is employed in order to investigate two distinct relaxation mechanisms of poly(3,4-ethylenedioxythiophene) with polyelectrolyte (PEDOT:PSS) films which constitutes of a suspension of conducting PEDOT:PSS grains, shelled by an insulating layer of PSS. In this paper a general methodology is proposed in order to get an insight into the local conductivity of mesoscopic conducting phase and to calculate the activation energies of the relaxation mechanisms.