BENT CARBON NANOTUBES AND METHODS OF PRODUCTION

摘要

A method of producing carbon nanotubes includes directing a flow of a gas over a substrate to provide growth of at least one carbon nanotube in a carbon-nanotube-growth region of the substrate; applying an electric field to the carbon-nanotube-growth region of the substrate after the at least one carbon nanotube has begun to grow in the carbon-nanotube-growth region, the electric field being substantially in a first direction in the carbon-nanotube-growth region; and changing the electric field at a preselected time to be substantially in a second direction in the carbon-nanotube-growth region during growth of the at least one carbon nanotube. The second direction is different from the first direction resulting in a bend substantially at a selected position of the at least one carbon nanotube, the method of producing carbon nanotubes providing the production of the at least one carbon nanotube having at least one bend substantially at a selected position along the at least one carbon nanotube.