Concentration and Temperature Dependence of Electrical Conductivity in Thermally Stable Chromium Polyacrylate

Abstract Electrical conductivity of chromium polyacrylate with dopant concentration 30% (w/w), 40% (w/w) and 50% (w/w) of chromium has been measured over a broad range of temperatures (303K to 383K). The electrical conductivity shows dependence on temperature, as well as, level of doping. The conductivity is considered to be due to thermal hopping motion of localized charge carriers, which are believed to be polarons, in the temperature range 303K to 323K and for T > 343K, whereas, it is metal-like in the temperature range 323K to 343K.