Method for manufacturing nano-tube, nano-tube manufactured thereby, apparatus for manufacturing nano-tube, method for patterning nano-tube, nano-tube material patterned thereby, and electron emission source

摘要

A method and an apparatus capable of instantaneously forming a surface of an arc-treated material mainly consisting of graphite into nano-tubes due to arc discharge carried out using a unit like a welding arc torch or the like without necessarily requiring a processing container, resulting in the nano-tube being applied to an electron emission source. A torch electrode acting as a first electrode and the arc-treated material made of graphite and acting as a second electrode are arranged opposite to each other. A potential is applied between both electrodes to generate arc discharge there between. A mask having an opening pattern is arranged on the arc-treated material, so that only graphite positioned on portions of a surface of the arc-treated material 2 corresponding to openings of the mask are exposed to arc, to thereby be formed into nano-tubes.