We have focused recent efforts on developing an understanding of how to optimise the electrical, spectroscopic, electrochemical and physical properties of poly(3,4-alkylenedioxythiophene) (PXDOT) and poly(3,4-alkylenedioxypyrrole) (PXDOP) based conjugated polymers. Here we present the results of the temperature dependence of the dc and microwave conductivity, as well as magnetic susceptibility and reflectance data, for electrochemically synthesized, free standing, PXDOT and PXDOP films doped with different organic anions. The polymers have properties that are characteristic of disordered materials near the insulator-metal transition (IMT). We also investigate the possibility of applying these polymers as the active layer in visible and IR light emissivity control devices.