Conducting Organic Polymers: Doped Polyacetylene

摘要

Linear polyacetylene, (CH)x is the simplest conjugated organic polymer and is therefore of special fundamental interest. Interest in this semiconducting polymer has been stimulated by the successful demonstration of doping with associated control of electrical properties over a wide range; the electrical conductivity of films of (CH)x can be varied over 12 orders of magnitude from that of an insulator (sigma approximately equal to ten to the minus 9th power/ohm/cm) through semiconductor to a metal (sigma approximately equal to ten to the minus 13th power/ohm/cm). Various electron donating or accepting molecules can be used to yield n-type or p-type material, and compensation and junction formation have been demonstrated.