Modified electroconductive polymer material and polymer film
Disclosed is a modified electroconductive polymer material, which comprises a metal filled in a space between the chains of an electroconductive polymer. The metal is oxidized (partially formed as a hydroxide) through a chemical reaction between three substances consisting of the metal, a cation radical/dication, and absorbed water. The metal has a work function less than that of the electroconductive polymer. The contact between the metal and the electroconductive polymer is kept in the state of coexistence between three substances consisting of the metal, the cation radical/dication and the absorbed water. This allows an electroconductive polymer material to have enhanced durability against oxidation/reduction, and controlled conductivity.
1. A modified electroconductive polymer material film comprising:
an electroconductive polymer; and
a metal oxide of size of about several nm filled in a space between chains of said electroconductive polymer,
wherein a metal of said metal oxide is oxidized through a galvanic corrosion reaction among (a) a metal, (b) a cation radical or dication in the electroconductive polymer, and (c) absorbed water, and said metal having a work function less than that of the electroconductive polymer, wherein the modified electroconductive polymer material film is included in an electronic element.
2. The modified electroconductive polymer material film as defined in claim 1 , wherein said metal is one selected from the group consisting of aluminum, titanium, indium, cadmium, manganese, iron, copper, silver, tin, antimony, lead, sodium and calcium.
3. The modified electroconductive polymer material film as defined in claim 1 , wherein said metal oxide is aluminum oxide or indium oxide.