JP2005059147A - Cutting method and cutting device of carbon nanotube - Google Patents

Cutting method and cutting device of carbon nanotube Download PDF

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JP2005059147A
JP2005059147A JP2003292816A JP2003292816A JP2005059147A JP 2005059147 A JP2005059147 A JP 2005059147A JP 2003292816 A JP2003292816 A JP 2003292816A JP 2003292816 A JP2003292816 A JP 2003292816A JP 2005059147 A JP2005059147 A JP 2005059147A
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carbon nanotube
cutting
irradiation
probe
cut
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JP4217783B2 (en
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Tamio Tanigawa
民生 谷川
Kotaro Oba
光太郎 大場
Hiroshi Matsuura
寛 松浦
Tomohito Takubo
朋仁 田窪
Takeshi Uda
毅 宇田
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National Institute of Advanced Industrial Science and Technology AIST
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Abstract

<P>PROBLEM TO BE SOLVED: To cut a carbon nanotube adhering to the tip of a probe of a scanning type probe microscope or a handling device to an arbitrary length at an arbitrary position. <P>SOLUTION: A discharge sharp rod of an external power supply device is disposed close to the probe tip part of the scanning type probe microscope or the handling device, whereby the carbon nanotube is cut by discharge action. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、カーボンナノチューブの切断方法および切断装置に関する。   The present invention relates to a carbon nanotube cutting method and cutting apparatus.

これまで、走査型プローブ顕微鏡のプローブ先端にカーボンナノチューブを付着させる際、バルク状態のカーボンナノチューブを電子顕微鏡で観察しながら付着させ、その後、引き抜くことによりカーボンナノチューブ付きプローブは製作される。このため、長さ方向伸び調節は殆ど不可能であった。
また、走査型顕微鏡プローブに付着させてプローブとして使用していたカーボンナノチューブは、先端に不純物が付着することにより、必要な先鋭度が得られなくなり廃棄されていた。
Until now, when carbon nanotubes are attached to the probe tip of a scanning probe microscope, the carbon nanotubes in a bulk state are attached while observing them with an electron microscope, and then pulled out to produce a probe with carbon nanotubes. For this reason, it was almost impossible to adjust the elongation in the length direction.
In addition, carbon nanotubes that have been attached to a scanning microscope probe and used as a probe have been discarded because impurities are attached to the tip, resulting in a lack of necessary sharpness.

走査型プローブ顕微鏡あるいはカーボンナノチューブピンセットなどのハンドリング機器のプローブ先端部に付着させたカーボンナノチューブの長さを揃えるために、またはカーボンナノチューブの先端部に付着した不純物を除去するためにカーボンナノチューブを任意の長さや位置で切断することが求められることがある。   In order to align the length of carbon nanotubes attached to the probe tip of a handling instrument such as a scanning probe microscope or carbon nanotube tweezers, or to remove impurities attached to the tip of carbon nanotubes It may be required to cut at length or position.

本発明は、プローブ先端部に付着させたカーボンナノチューブについて任意の長さや位置(任意の長さという)で切断する方法および装置を提供することを目的とする。   An object of the present invention is to provide a method and an apparatus for cutting a carbon nanotube attached to a probe tip at an arbitrary length or position (referred to as an arbitrary length).

本発明は、走査型プローブ顕微鏡あるいはハンドリング機器のプローブ先端部などの基材に近接して外部電源装置の照射先鋭ロッドを配置し、放出されたエネルギによって基材に付着したカーボンナノチューブを数μの長さに切断するようにした。例えば、プローブ先端部に残されたカーボンナノチューブはプローブとして機能する。   In the present invention, an irradiation sharpened rod of an external power supply device is arranged close to a substrate such as a scanning probe microscope or a probe tip of a handling device, and carbon nanotubes attached to the substrate by the released energy are several μm. Cut to length. For example, the carbon nanotube left at the probe tip functions as a probe.

本発明は、走査型プローブ顕微鏡あるいはハンドリング機器のプローブ先端部などの基材に近接して外部電源装置の照射先鋭ロッドを配置し、放出されたエネルギによって基材に付着したカーボンナノチューブを数μの長さに切断するようにした。例えば、プローブ先端部に残されたカーボンナノチューブはプローブとして機能する。   In the present invention, an irradiation sharpened rod of an external power supply device is arranged close to a substrate such as a scanning probe microscope or a probe tip of a handling device, and carbon nanotubes attached to the substrate by the released energy are several μm. Cut to length. For example, the carbon nanotube left at the probe tip functions as a probe.

カーボンナノチューブを任意の場所で切断できるため、必要な長さに揃えることや、常に新しい先端状態で測定やピンセットとして部材を操作できる。また、カーボンナノチューブの機械、電気電子特性を個別に測定する際、長さ方向を自由に制御できることは大きな意味を持つ。   Since the carbon nanotube can be cut at an arbitrary place, it can be aligned to the required length, and the member can be operated as a measurement or tweezers always in a new tip state. In addition, when measuring the mechanical and electrical / electronic properties of carbon nanotubes individually, it is of great significance that the length direction can be freely controlled.

走査型プローブ顕微鏡もしくはハンドリング機器のプローブの先端部に近接して外部電源装置の照射先鋭ロッドを配置し、放出された照射エネルギにより基材に付着したカーボンナノチューブを数μの長さに切断するカーボンナノチューブ切断方法および切断装置が最良の形態として構成される。   A carbon that cuts the carbon nanotubes attached to the substrate to a length of several μm by disposing the sharpened rod of the external power supply near the tip of the scanning probe microscope or the probe of the handling device. A nanotube cutting method and a cutting apparatus are configured as the best mode.

以下、本発明の実施例を図面に基づいて説明する。
図1は、本発明を走査型プローブ顕微鏡のプローブ先端部に適用した実施例であるカーボンナノチューブ切断装置の概要を示す。
図1において、走査型プローブ顕微鏡(図示せず)のプローブ先端部1には、カーボンナノチューブ2が付着させられている。
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an outline of a carbon nanotube cutting apparatus which is an embodiment in which the present invention is applied to a probe tip of a scanning probe microscope.
In FIG. 1, a carbon nanotube 2 is attached to a probe tip 1 of a scanning probe microscope (not shown).

外部電源装置3は、一対の放電先鋭ロッド4(4A、4B)を備えており、放電先鋭ロッド4はプローブ先端部1の近傍において、カーボンナノチューブ2にその先端が向くようにして近接配置されている。すなわち、照射先鋭ロッド、例えば放電先鋭ロッド4の先端はカーボンナノチューブ2の切断しようとする部分に向けられる。外部電源装置には電磁場印加装置が含まれる。   The external power supply device 3 includes a pair of discharge sharpening rods 4 (4A, 4B), and the discharge sharpening rod 4 is disposed close to the carbon nanotube 2 in the vicinity of the probe tip 1 so that the tip thereof is directed. Yes. That is, the tip of the irradiation sharp rod, for example, the discharge sharp rod 4 is directed to the portion of the carbon nanotube 2 to be cut. The external power supply device includes an electromagnetic field application device.

一対の放電先鋭ロッド4(4A、4B)間に電位差を与え、放電を起こし、放電先鋭ロッド4とカーボンナノチューブ2の切断すべき部分とを相対運転させる。この相対運動は、プローブもしくは放電先鋭ロッド4の移動操作により行う。照射の概念には、電位差による放電、レーザー、イオンビームあるいは電子ビームなどのビームを含んで使用する。要は、炭素結合解離エネルギを照射によって付与し、炭素間の結合を電気力によって切り離す。   A potential difference is applied between the pair of discharge sharp rods 4 (4A, 4B) to cause discharge, and the discharge sharp rod 4 and the portion of the carbon nanotube 2 to be cut are relatively operated. This relative movement is performed by moving the probe or the discharge sharpening rod 4. The concept of irradiation includes discharge by potential difference, laser, ion beam or electron beam. In short, carbon bond dissociation energy is applied by irradiation, and bonds between carbons are broken by electric force.

カーボンナノチューブ2は、例えば放電による作用によって、切断しようとする部分において容易に切断することができる。すなわち、カーボンナノチューブ2について任意の長さあるいは位置で切断することができる。カーボンナノチューブの長さを切り揃えることができる。残されたカーボンナノチューブの長さは数μ(数μ〜数10μを含む。)の長さとされる。電極の材質、印加電位差の周期にもよるが、例えば、カーボンナノチューブ1に対する距離を10μm位にして数十Vくらいの放電で切断可能である。
カーボンナノチューブピンセットなどのハンドリング機器のプローブに付着させたカーボンナノチューブについても同様にして切断することができる。
The carbon nanotube 2 can be easily cut at a portion to be cut, for example, by the action of electric discharge. That is, the carbon nanotube 2 can be cut at an arbitrary length or position. The length of the carbon nanotube can be cut and aligned. The length of the remaining carbon nanotube is several μ (including several μ to several 10 μ). Depending on the material of the electrode and the period of the applied potential difference, for example, the distance to the carbon nanotube 1 can be about 10 μm, and cutting can be performed with a discharge of several tens of volts.
Carbon nanotubes attached to a probe of a handling device such as carbon nanotube tweezers can be similarly cut.

以上の実施例によれば、走査型プローブ顕微鏡もしくはハンドリング機器のプローブの先端部などの基材に近接して外部電源装置の照射先鋭ロッドを配置し、放出された照射エネルギによりカーボンナノチューブを切断するカーボンナノチューブの切断方法および切断装置が構成される。
更に、前記照射先鋭ロッドとカーボンナノチューブとを切断を行う部分に対し相対運動させるようにしたカーボンナノチューブの切断方法および切断装置が構成される。
According to the above embodiment, the irradiation sharpened rod of the external power supply device is arranged in the vicinity of the base material such as the tip of the scanning probe microscope or the probe of the handling device, and the carbon nanotube is cut by the emitted irradiation energy. A carbon nanotube cutting method and a cutting apparatus are configured.
Furthermore, a carbon nanotube cutting method and a cutting apparatus are provided in which the irradiation sharp rod and the carbon nanotube are moved relative to a portion to be cut.

図2は、走査型プローブ顕微鏡のプローブ2の先端部にカーボンナノチューブ1が付着した状況を示す写真である。図3はカーボンナノチューブに放電による作用によりカーボンナノチューブを切断した状況を示す写真である。図3に示すように、放電によって任意の位置でカーボンナノチューブを切断できることが確認された。   FIG. 2 is a photograph showing a state in which the carbon nanotube 1 is attached to the tip of the probe 2 of the scanning probe microscope. FIG. 3 is a photograph showing a state in which the carbon nanotubes are cut by the action of electric discharge. As shown in FIG. 3, it was confirmed that the carbon nanotube can be cut at an arbitrary position by electric discharge.

本発明の実施例のカーボンナノチューブ切断装置の概略構成を示す図。The figure which shows schematic structure of the carbon nanotube cutting device of the Example of this invention. 走査型プローブ顕微鏡のプローブ先端部(a)にカーボンナノチューブ(b)が付着した状況を示す写真。The photograph which shows the condition which the carbon nanotube (b) adhered to the probe front-end | tip part (a) of a scanning probe microscope. カーボンナノチューブを任意の位置で切断したことを確認する図。The figure which confirms having cut | disconnected the carbon nanotube in arbitrary positions.

符号の説明Explanation of symbols

1…プローブの先端部、2…カーボンナノチューブ、3…外部電源装置、4(4A、4B)…一対の放電先鋭ロッド。   DESCRIPTION OF SYMBOLS 1 ... The front-end | tip part of a probe, 2 ... Carbon nanotube, 3 ... External power supply device, 4 (4A, 4B) ... A pair of discharge sharpening rod.

Claims (4)

走査型プローブ顕微鏡もしくはハンドリング機器のプローブの先端部などの基材に近接して外部電源装置の照射先鋭ロッドを配置し、放出された照射エネルギにより基材に付着したカーボンナノチューブを数μの長さに切断することを特徴とするカーボンナノチューブの切断方法。   An irradiation sharpened rod of an external power supply device is placed close to the substrate such as the tip of a scanning probe microscope or probe of a handling device, and the carbon nanotubes attached to the substrate by the emitted irradiation energy are several μm long A method for cutting carbon nanotubes, characterized by cutting into carbon nanotubes. 請求項1において、前記照射先鋭ロッドとカーボンナノチューブとを切断を行う部分に対し相対運動させることを特徴とするカーボンナノチューブの切断方法。   2. The carbon nanotube cutting method according to claim 1, wherein the irradiation sharpened rod and the carbon nanotube are moved relative to a portion to be cut. 基材付近に外部電源装置の照射先鋭ロッドを配置し、該照射先鋭ロッドによる放出された照射エネルギにより基材に付着したカーボンナノチューブを数μの長さに切断することを特徴とするカーボンナノチューブ切断装置。   A carbon nanotube cutting characterized by disposing an irradiation sharpened rod of an external power supply device in the vicinity of the substrate, and cutting the carbon nanotube attached to the substrate into a length of several μm by the irradiation energy emitted by the irradiation sharpened rod apparatus. 請求項3において、前記照射先鋭ロッドまたはカーボンナノチューブを相対運動させる装置を備えることを特徴とするカーボンナノチューブ切断装置。
4. The carbon nanotube cutting device according to claim 3, further comprising a device that relatively moves the irradiation sharpened rod or the carbon nanotube.
JP2003292816A 2003-08-13 2003-08-13 Carbon nanotube cutting method and cutting apparatus Expired - Lifetime JP4217783B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007136557A (en) * 2005-11-14 2007-06-07 Univ Nihon Carbon nanotube wiring, depositing device for carbon nanotube, semiconductor device, method for wiring carbon nanotube, and probe
WO2009060721A1 (en) * 2007-11-05 2009-05-14 Nec Corporation Method for cutting carbon nonotube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007136557A (en) * 2005-11-14 2007-06-07 Univ Nihon Carbon nanotube wiring, depositing device for carbon nanotube, semiconductor device, method for wiring carbon nanotube, and probe
WO2009060721A1 (en) * 2007-11-05 2009-05-14 Nec Corporation Method for cutting carbon nonotube

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