Layer-by-Layer Assembly of Polythiophene

Layer-by-layer deposition of polythiophene (see Figure) has successfully been carried out using only polyanion and polycation dilute solutions of polythiophene. The synthesis and characterization of these assemblies, as well as their optical properties, are described. The conductivities of the regioregular polythiophenes reported are much higher than for regiorandom polythiophene multilayer systems.