Nanowire, method for producing the nanowire, nanonetwork using the nanowires, method for producing the nanonetwork, carbon structure using the nanowire, and electronic device using the nanowire
First Claim
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1. A nanowire comprising:
- a core portion having a carbon nanotube having at least one layer of a graphene sheet; and
a functional layer formed around the core portion and having at least one layer of a modified graphene sheet.
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Abstract
A nanowire including a core portion 12 made of a carbon nanotube having at least one layer of a graphene sheet 12a, 12b, and a functional layer 14 formed around the core portion 12 and having at least one layer of a modified graphene sheet in which a graphene sheet has been modified; a method for producing the nanowire; a nanonetwork using the nanowires; a method for producing the nanonetwork; a carbon structure using the nanowire; and an electronic device using the nanowire.
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Citations
25 Claims
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1. A nanowire comprising:
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a core portion having a carbon nanotube having at least one layer of a graphene sheet; and
a functional layer formed around the core portion and having at least one layer of a modified graphene sheet. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 13)
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6. The nanowire according to claim, wherein the functional layer has semiconductor properties.
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10. The nanowire according to claim, wherein a predetermined material is incorporated into a hollow tubular portion of the carbon nanotube forming the core portion.
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11. The nanowire according to claim, wherein the carbon nanotube forming the core portion has a structure showing semiconductor properties.
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12. The nanowire according to claim, wherein the carbon nanotube forming the core portion has a structure showing conductor properties.
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14. A nanonetwork comprising a plurality of nanowires each having:
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a core portion having a carbon nanotube having at least one layer of a graphene sheet; and
a functional layer formed around the core portion and having at least one layer of a modified graphene sheet in which a graphene sheet has been modified, wherein the functional layers adhere to one another at least in side surfaces of the nanowires so as to form a network structure.
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15. A carbon structure comprising:
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a multi-walled carbon nanotube having at least two layers of graphene sheets; and
an amorphous carbon area at which a graphene sheet forming an outermost layer of the carbon nanotube is partially connected with at least one graphene sheet forming an inner layer of the carbon nanotube.
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16. A method for producing a nanowire, comprising the step of:
carrying out at least a modification treatment on a multi-walled carbon nanotube having at least two layers of graphene sheets so as to produce a nanowire having a core portion and a functional layer, the core portion having a carbon nanotube having at least one layer of the graphene sheets, the functional layer formed around the core portion and having a modified graphene sheet originated from at least one of the graphene sheets around the core portion. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method for producing a nanonetwork, comprising the steps of:
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providing a nanowire A having;
a core portion having a carbon nanotube having at least one layer of a graphene sheet; and
a functional layer formed around the core portion and having at least a modified graphene sheet which has an amorphous carbon area, providing nanowire B having;
a core portion having a carbon nanotube having at least one layer of a graphene sheet; and
a functional layer formed around the core portion and having at least one layer of a modified graphene sheet, crossing the nanowire A and one of the nanowire B and a carbon nanotube so that an amorphous carbon area in the nanowire A is in contact with the one of the nanowire B and the carbon nanotube; and
irradiating the crossing portion with an electron beam so as to electrically connect the nanowire A with the one of the nanowire B and the carbon nanotube.
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25. An electronic device comprising a nanowire having:
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a core portion having a carbon nanotube having at least one layer of a graphene sheet; and
a functional layer formed around the core portion and having at least one layer of a modified graphene sheet, wherein the nanowire is used as electric wiring.
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Specification