Methods of fabrication of deaggregated electrically conductive polymers and precursors thereof
AssigneeInternational Business Machines Corporation
InventorsMarie Angelopoulos, Bruce K. Furman
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Abstract
Deaggregated substituted and unsubstituted polyparaphenylenes, polyparaphenylevevinyles, polyanilines, polyazines, polythiophenes, poly-p-phenylene sulfides, polyfuranes, polypyrroles, polyselenophene, polyacetylenes formed from soluble precursors and combinations thereof and copolymers thereof and methods of fabrication are described. The deaggregated polymer molecules when subsequently doped show higher electrical conductivity. Agents such as lithium chloride, m-cresol and nonylphenol are used to deaggregate the polymer molecules. The deaggregating agents can be added prior to or during doping the molecules.
Claims12
A method comprising the steps of:
- providing a first admixture of an additive and a solvent;
- forming a second admixture by dissolving in said first admixture precursor polymers to electrically conducting polymers, said additive deaggregates said precursor molecules;
- said second admixture is a solution;
- thereafter adding a dopant to said second admixture to dope said precursor to be an electrically conductive polymer;
- said dopant has different chemical composition that said additive;
- and
- said additive has different chemical composition than said solvent.
Dependencies are inferred from the claim text.