摘要:
The present invention realizes a probe with a high resolution, high rigidity and high bending elasticity which can be used in a scanning probe microscope and makes it possible to pick up images of surface atoms with a high resolution. Also, a high-precision input-output probe which can be used in high-density magnetic information processing devices is also realized. In order to accomplish the object, the electronic device surface signal operating probe of the present invention is constructed from a nanotube 24, a holder 2a which holds this nanotube 24, and a fastening means which fastens the base end portion 24b of the nanotube 24 to the surface of the holder so that the tip end portion 24a of the nanotube 24 protrudes; and the tip end portion 24a of the nanotube 24 is used as a probe needle. Furthermore, as one example of the fastening means, a coating film 29 which covers the base end portion 24b of the nanotube 24 is formed. If a coating film 30 is also formed on an intermediate portion 24c on the root side of the tip end portion, the strength of the probe needle and the resolution are further increased. As another example of the fastening means, the base end portion 24b of the nanotube 24 is fusion-welded to the holder surface. All or part of the base end portion 24b forms a fusion-welded part so that the nanotube 24 is firmly fastened to the holder. A common nanotube such as a carbon nanotube (CNT), BCN type nanotube or BN type nanotube, etc., can be used as the above-described nanotube. Since nanotubes have a small tip end curvature radius, signals can be operated at a high resolution. Furthermore, since nanotubes have a high rigidity and bending elasticity, they are extremely resistant to damage and have a long useful life. Moreover, since the raw materials are inexpensive, high-performance probes can be inexpensively obtained. Furthermore, such probes can be used as probe needles in scanning tunnel microscopes or atomic force microscopes, or as input-output probes in place of magnetic heads in magnetic disk drives.
摘要:
To provide nanotweezers and a nanomanipulator which allow great miniaturization of the component and are capable of gripping various types of nano-substances such as insulators, semiconductors and conductors and of gripping nano-substances of various shapes. Electrostatic nanotweezers 2 are characterized in that the nanotweezers 2 are comprised of a plurality of nanotubes whose base end portions are fastened to a holder 6 so that the nanotubes protrude from the holder 6, coating films which insulate and cover the surfaces of the nanotubes, and lead wires 10, 10 which are connected to two of the nanotubes 8, 9; and the tip ends of the two nanotubes are freely opened and closed by means of an electrostatic attractive force generated by applying a voltage across these lead wires. Furthermore, by way of forming a piezo-electric film 32 on the surface of the nanotube 9, and the tip ends of the nanotubes are freely opened and closed by expanding and contracting the piezo-electric film, thus allowing any desired nano-substances to be handled regardless of whether the nano-substances are insulators, semiconductors or conductors. Furthermore, if by way of designing three nanotubes so as to be freely opened and closed by an electrostatic system, nano-substances of various shapes such as spherical, rod-form, etc.
摘要:
The present invention realizes a nanotube probe with high durability that can be manufactured in short time with less impurities adhered to the holder sustaining the nanotube. The nanotube probe according to this invention is constructed by fastening a nanotube 8 on the protruded portion 4 of a cantilever by way of at least two partial coating films 12a and 12b. One or more additional partial coating films may be formed in the intermediate area between these two partial coating films. Each partial coating film is formed by irradiating electron beam 10 on the position where the nanotube 8 is in contact with the protruded portion 4 of the cantilever. The partial coating films are separated not to overlap each other. By minimizing the size of partial coating film as well as by narrowing down the beam diameter, coating time may be further shortened. With the beam diameter narrowed down, excessive deposit of impurities can be put under control.
摘要:
A method for synthesizing carbon nanocoils with high efficiency, by determining the structure of carbon nuclei that have been attached to the ends of carbon nanocoils and thus specifying a true catalyst for synthesizing carbon nanocoils is implemented. The catalyst for synthesizing carbon nanocoils according to the present invention is a carbide catalyst that contains at least elements (a transition metal element, In, C) or (a transition metal element, Sn, C), and in particular, it is preferable for the transition metal element to be Fe, Co or Ni. In addition to this carbide catalyst, a metal catalyst of (Fe, Al, Sn) and (Fe, Cr, Sn) are effective. From among these, catalysts such as Fe 3 InC 0.5 , Fe 3 InC 0.5 Snw and Fe 3 SnC are particularly preferable. The wire diameter and the coil diameter can be controlled by using a catalyst where any of these catalysts is carried by a porous carrier.
摘要:
Developed is high-efficiency synthesis method and apparatus capable of promoting the initial growth of carbon nanostructure by eliminating the initial fluctuation time and rising time in raw gas flow quantity. A high-efficiency synthesis method of carbon nanostructure according to the present invention is a high-efficiency synthesis method of carbon nanostructure, the method comprising: bringing raw material gas and a catalyst into contact with each other under reactive conditions so as to produce a carbon nanostructure, wherein: the initiation of contact of the raw material gas with the catalyst is carried out instantaneously. Reaction conditions such as temperature and raw material gas concentration are set so as to meet those for catalyst growth, and under the reaction conditions, the initiation of contact of raw material gas G with catalyst 6 is carried out instantaneously. Consequently, the initial growth of carbon nanostructure is positively carried out, and the height growth and thickness growth thereof can be effected in high efficiency. Further, high-density growth and short-time high-speed growth can be realized. The catalyst includes any forms of catalyst such as catalyst substrate, catalyst structure, catalyst powders and catalyst pellet. It is especially preferred to employ a system wherein the feed and interruption of the raw material gas G are intermittently controlled by means of an electromagnetic three-way valve 24.
摘要:
The present invention realizes a probe with a high resolution, high rigidity and high bending elasticity which can be used in a scanning probe microscope and makes it possible to pick up images of surface atoms with a high resolution. Also, a high-precision input-output probe which can be used in high-density magnetic information processing devices is also realized. In order to accomplish the object, the electronic device surface signal operating probe of the present invention is constructed from a nanotube 24, a holder 2a which holds this nanotube 24, and a fastening means which fastens the base end portion 24b of the nanotube 24 to the surface of the holder so that the tip end portion 24a of the nanotube 24 protrudes; and the tip end portion 24a of the nanotube 24 is used as a probe needle. Furthermore, as one example of the fastening means, a coating film 29 which covers the base end portion 24b of the nanotube 24 is formed. If a coating film 30 is also formed on an intermediate portion 24c on the root side of the tip end portion, the strength of the probe needle and the resolution are further increased. As another example of the fastening means, the base end portion 24b of the nanotube 24 is fusion-welded to the holder surface. All or part of the base end portion 24b forms a fusion-welded part so that the nanotube 24 is firmly fastened to the holder. A common nanotube such as a carbon nanotube (CNT), BCN type nanotube or BN type nanotube, etc., can be used as the above-described nanotube. Since nanotubes have a small tip end curvature radius, signals can be operated at a high resolution. Furthermore, since nanotubes have a high rigidity and bending elasticity, they are extremely resistant to damage and have a long useful life. Moreover, since the raw materials are inexpensive, high-performance probes can be inexpensively obtained. Furthermore, such probes can be used as probe needles in scanning tunnel microscopes or atomic force microscopes, or as input-output probes in place of magnetic heads in magnetic disk drives.
摘要:
A surface signal control probe high in resolution, rigidity, and bending elasticity which can be used for a scanning probe microscope and a highly accurate surface signal control probe for inputting and outputting signals which can be used for a high density magnetic information processing device, comprising a nanotube (24) small in tip curvature radius and high in rigidity and bending elasticity, a holder (2a) holding the nanotube (24), and a fixing means fixing the base part (24b) of the nanotube to the surface of the holder with the tip part (24a) of the nanotube (24) projecting from the holder, wherein the tip part (24a) of the nanotube is used as a probe and the fixing means is formed of a coating film (29) covering the base part (24b) of the nanotube (24) and a fused part where the base part (24b) is fused to the surface of the holder.
摘要:
The present invention realizes a conductive probe for a scanning type microscope, to which a voltage can be applied or a current can flow. In order to accomplish the object, in a conductive probe for a scanning type microscope which captures substance information of the surface of a specimen by the tip end 14a of a conductive nanotube probe needle fastened to a cantilever 4, the conductive probe 20 for the scanning type microscope related to the present invention is characterized in that this conductive probe is constructed from a conductive film 17 formed on the surface of the above described cantilever 4, a conductive nanotube 12, the base end portion 16 of which is fixed in contact with the surface of the necessary portion of the cantilever 4 and a conductive deposit 18 which fastens the conductive nanotube 12 by covering from the base end portion 16 of the nanotube 12 to a part of the above described conductive film 17, and in that the conductive nanotube 12 and the conductive film 17 are electrically connected each other with the conductive deposit 18.
摘要:
The present invention realizes a probe for a scanning type microscope by which the quality of a nanotube probe needle can be improved by means of fastening and cutting the nanotube probe needle, furthermore by means of implanting ions of another element. For the object, a probe for a scanning type microscope produced by a focusing ion beam related to the present invention is characterized in that, in a probe for a scanning type microscope which captures substance information of the surface of a specimen by the tip end 14a of a nanotube probe needle 12 fastened to a cantilever 4, an organic gas G is decomposed by a focused ion beam I in a focused ion beam apparatus 2, and the nanotube 12 is bonded to the cantilever 4 with a deposit of the decomposed component thus produced. Furthermore, the present invention provides a probe for a scanning type microscope by which the quality of the nanotube probe needle can be improved by means of removing an unnecessary deposit 24 adhering to the nanotube tip end portion 14 using a ion beam I, by means of cutting an unnecessary part of the nanotube in order to control length of the probe needle and by means of injecting ions into the tip end portion 14 of the nanotube.
摘要:
The present invention realizes a probe for a vertical scanning type microscope in which a tip end of a nanotube serving as a probe is caused to abut substantially perpendicularly against the surface of a specimen and can detect surface information of a specimen at a high sensitivity. In order to accomplish the object, in a probe 20 for a scanning type microscope which captures substance information of the surface of a specimen 24 by the tip end of a nanotube probe needle fastened to a cantilever 2, a probe for a vertical scanning type microscope related to the present invention is characterized in that a fixing region, to which the base end portion 14 of a nanotube 12 is fastened, is provided in a cantilever 2 and when the cantilever 2 is set in a measuring state with respect to a mean surface 26 of a specimen, height direction of the above described fixing region is set up substantially perpendicular to the mean surface 26 of the specimen and the base end portion 14 of the nanotube 12 is bonded in the height direction of the fixing region.