Method of forming a patterned film of surface-modified carbon nanotubes

A method of forming a negative pattern of carbon nanotubes which comprises the steps of:

• (a) providing surface-modified carbon nanotubes by introducing double bond-containing functional groups into the surface of the carbon nanotubes;
• (b) dispersing the surface-modified carbon nanotubes in an organic solvent along with a photoinitiator to obtain a liquid coating composition;
• (c) applying the liquid coating composition to a substrate and evaporating the organic solvent by prebaking to provide a coating film on the substrate;
• (d) exposing the coating film to UV light through a photomask having a desired pattern to induce photo-polymerization of the carbon nanotubes in the exposed areas of the coating film;
• and
• (e) developing the coating film with an organic developer to remove unexposed areas of the coating film and to obtain a negative pattern of the carbon nanotubes.