Patent ID: 8362525

Claim:
A method of making a nanotube field effect transistor, comprising: providing a substrate; forming a non-woven fabric of carbon nanotubes on the substrate, wherein at least one of the nanotubes includes a functional material adsorbed on a surface of the nanotubes, the functional material providing charge transfer states on the nanotubes; forming a drain region and a source region in spaced relation relative to each other; forming a channel region by patterning the non-woven fabric of nanotubes, wherein the nanotubes of the channel region comprise semiconducting nanotubes, and wherein the length of the channel region between the drain region and the source region is less than the average length of the semiconducting nanotubes; and forming at least one gate that may be used to modulate the conductivity of the channel region so that a conductive path may be formed between the drain region and the source region, wherein forming the at least one gate comprises: depositing a conductive layer in proximity to the channel region; and patterning the conductive layer to a length that is similar to the length of the channel region.