Effect of lithium doping on the conductivity of poly(p-phenylene vinylene)

The effect of lithium doping on the conductivity (σ) of poly(p-phenylene vinylene) (ppv) has been studied via a.c. impedance measurements. Ppv has been synthesized via a water-soluble polymer electrolyte precursor. Its conductivity in both undoped and doped forms has been measured as a function of temperature. While doping with LiCl has not resulted in reliable data, doping with lithium triflate (LiCF3SO3) has improved the conductivity of ppv …