To provide a method and a device which are suitable for adjusting the length of a carbon nanotube in the order of several tens of nanometers and can cut the carbon nanotube in such a manner that the cylindrical form is kept to the tip part.
One end of a carbon nanotube to be cut is fixed to a base material, and another carbon nanotube is loaded on an electrode. The other end of the carbon nanotube fixed to the base material and the end part of the carbon nanotube loaded on the electrode are brought into contact to each other, and then an electric current or a pulse electric current is applied between the base material and the electrode by the discharge of a capacitor. Thereby, the tip part of the carbon nanotube fixed to the base material is sublimated and cut by Joule heat generated at the contact part of two carbon nanotubes. The length of the carbon nanotube can be finely adjusted in the interval of several tens of nanometers by repeating the cutting. Further, the cylindrical form can be kept to the tip part.
OKAI MAKOTO
MORIMOTO TAKASHI
SEKINO SATOSHI
TANAKA HIROKI
TAKASHINA MASATO
UOZUMI YUKI
HITACHI KYOWA ENG CO LTD
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