Transparent conducting films containing single-walled carbon nanotubes dispersed in an azo dye
AssigneeWisconsin Alumni Research Foundation
InventorsSundaram Gunasekaran, Ashok Kumar Sundramoorthy
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Abstract
Described are carbon nanotube dispersions containing single-walled carbon nanotubes dispersed in a dispersant solution comprising a solvent (water, organic polar protic solvents, and/or organic polar aprotic solvents), and an azo compound. The single-walled carbon nanotubes are not cross-linked with covalent bonds. The dispersions are useful for fabricating transparent conductive thin films on flexible and inflexible substrates. Methods for making the transparent conductive thin films are also described.
Claims20
A carbon nanotube dispersion comprising:
- single-walled carbon nanotubes dispersed in a dispersant solution comprising a solvent selected from the group consisting of water, organic polar protic solvents, and organic polar aprotic solvents, and an azo compound comprising at least one azo moiety, wherein the single-walled carbon nanotubes are not covalently cross-linked.
A method of making a flexible, transparent, conductive film, the method comprising:
- providing a dispersion of single-walled carbon nanotubes in a solution comprising a solvent selected from the group consisting of water, organic polar protic solvents, and organic polar aprotic solvents, and an azo compound comprising at least one azo moiety;
- contacting the dispersion on a substrate, and then
- removing the solution;
- wherein a flexible, transparent, conductive film is formed on the substrate, and wherein wherein the single-walled carbon nanotubes are not covalently cross-linked.
Dependencies are inferred from the claim text.