METHOD FOR FORMING A PATTERNED MONOLAYER OF SURFACE-MODIFIED CARBON NANOTUBES

摘要

A method for forming a pattern of surface-modified carbon nanotubes on a substrate comprising various materials by introducing a functional group having a double bond into the surface of the carbon nanotube and photocuring the surface-modified carbon nanotubes. The method includes the steps of: offering carbon nanotubes having a double bond-containing functional group introduced to the surface; dissolving the carbon nanotubes with an photo-initiator in an organic solvent so as to prepare a coating solution; applying the coating solution on the surface of a substrate, followed by vaporizing the solvent through prebaking to form a film; exposing the dried film to UV lights through a photomask having a desired patterned formed to induce photopolymerization reaction of carbon nanotubes; and developing the exposed film using an organic developing solution and removing non-exposed part of the film to obtain a negative pattern of the carbon nanotubes. The nanotubes are surface modified by the double bond-containing compound of the formula(1) or (2), in which R=H or CH3; X=Cl, NH2 or OH; R1=H or CH3; R2=C1~C6 alkyl; and X=Cl, NH2 or OH. The coating composition contains the surface-modified carbon nanotubes having a double bond-containing functional group, a photo initiator, and organic solvent.