TECHNOLOGY FOCUS - POLYMERS - Preferred Component: The polymerizable monomers are aniline, benzene, furan, pyrrole, thiophene, or their derivatives. The negatively ionized carbon nanotubes are used. The solvent comprises water, acetone, acetonitrile, toluene, methanol, ethanol, dichloromethane, dimethyl-formamide, dimethylsulfoxide, tetrahydrofuran, propylene carbonate, an ionic liquid or the polymerizable monomer. Non-ionized carbon nanotubes are used. A charge carrier is dissolved in the solvent and comprises salts of formula XaXb. It comprises a salt and an ionophore, or charged biomolecules from proteins or amino acids.M = H, Li, Na, K, Mg, Ca, Sr, Ba, Cu, Ag, Zn, Fe, Al, tetraalkylammonium;X = chloride, bromide, iodide, nitrate, phosphate, sulfate, perchlorate, tetrafluoroborate, biological anions, organic anions, organic polymer anions, or non-stoichiometric anions;a, b = charge balancing numbers.Preferred Composition: The polymerizable monomers are present in the solution at 0.1-0.5 M. The carbon nanotubes are present in the dispersion in 0.001-1 wt.%. The charge carrier salt is present in 0.1-0.5 M. Preferred Method: The polymerization is conducted as an electropolymerization conducted at a monomer oxidation potential of 0.7-1 V compared with a saturated calomel electrode. It can be carried out by allowing the suspension to stand until a gel forms. EXAMPLE - Electrolytic polymerization of the composite films was carried out in a single compartment electrochemical cell. The electrolyte comprised of an organic solution of 3-methylthiophene, suspended carbon nanotubes, and lithium perchlorate. The organic solvent was acetonitrile. Polymerization was performed in a reaction vessel that was purged with anhydrous argon to exclude water and oxygen from the reaction. The vessel was submersed in an ultrasonic bath and sonication was applied for up to 30 minutes before polymerization to suspend the carbon nanotubes in the organic solvent. Electrochemical synthesis was performed using a graphite disc working electrode and a graphite rod counter electrode.