Potential Dependence of the Conductivity of Polyacetylene: Finite PotentialWindow of High Conductivity

摘要

The cyclic voltammetry and the potential dependence of conductivity forpolyacetylene films on platinum electrode arrays have been studied in both liquid SO2/electrolyte and tetrahydrofuran/electrolyte. The polyacetylene was prepared by thermolysis of films of films of poly(7,8-bistrifluoromethyl-tricyclo 4.2.2.0 2,5deca-3,7,9-triene) deposited on interdigitated electrode arrays. When oxidized in liquid SO2/electrolyte, polyacetylene has a maximum in conductivity a polyvinylferrocene internal reference, and conductivity is three orders of magnitude lower at +2.0 V. The width of the window of high conductivity is the largest yet observed for a conducting polymer.