Preparation method of narrow graphene nanoribbons

A nano-narrowband, graphene technology, applied in nanotechnology, ion implantation plating, coating and other directions, can solve the problems of difficult to control the size of graphene strips, difficult to control the size and shape, difficult to pattern layout of catalyst particles, etc. , to achieve the effect of overcoming the pattern and size, the size is easy to control, and the preparation is simple

Active Publication Date: 2013-10-23
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this method, it is difficult to pattern the catalyst particles, and it is difficult to control their size and shape, so the size of the obtained graphene strips is also difficult to control.

Method used

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  • Preparation method of narrow graphene nanoribbons
  • Preparation method of narrow graphene nanoribbons
  • Preparation method of narrow graphene nanoribbons

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Please also refer to figure 1 and figure 2 , Embodiment 1 of the present invention provides a kind of preparation method of graphene nano-narrow belt 10, and this method comprises the following steps:

[0023] S1: providing a metal base 20, the metal base 20 has a first surface 201;

[0024] S2: Provide a carbon nanotube drawn film structure 40 covering the first surface 201 of the metal substrate 20, the carbon nanotube drawn film structure 40 includes a plurality of oriented arrayed strip gaps 412 and carbon nanotube bundles 411;

[0025] S3: Implanting carbon ions into the first surface 201 of the metal substrate 20 through the strip gap 412 of the carbon nanotube stretched film structure 40 by using an ion implantation process;

[0026] S4: performing annealing treatment on the metal substrate 20, so as to obtain a plurality of aligned graphene nanoribbons 10 on the first surface 201 of the metal substrate 20; and

[0027] S5: Using ultrasonic treatment, the car...

Embodiment 2

[0046] Please also refer to Figure 7 and Figure 8 , Embodiment 2 of the present invention provides a method for preparing a graphene nano-narrow ribbon 10, the method comprising the following steps:

[0047] S1: providing a metal base 20, the metal base 20 has a first surface 201;

[0048] S2: Provide a carbon nanotube drawn film structure 40 covering the first surface 201 of the metal substrate 20, the carbon nanotube drawn film structure 40 includes a plurality of oriented arrayed strip gaps 412 and carbon nanotube bundles 411;

[0049] S3: Implanting carbon ions into the first surface 201 of the metal substrate 20 through the strip gap 412 of the carbon nanotube stretched film structure 40 by using an ion implantation process;

[0050] S4: removing the carbon nanotube stretched film structure 40 from the metal substrate 20; and

[0051] S5: Annealing the metal substrate 20 to obtain a plurality of aligned graphene nanoribbons 10 on the first surface 201 of the metal su...

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Abstract

A method for making a strip shaped graphene layer includes the following steps. First, a carbon nanotube structure on a surface of a metal substrate is provided. The carbon nanotube structure includes at least one drawn carbon nanotube film. The at least one drawn carbon nanotube film includes a number of carbon nanotube segments, each of the number of carbon nanotube segments being substantially parallel to each other and separated from each other by a strip-shaped gap. Second, carbon ions are implanted into the metal substrate through the strip-shaped gaps. Third, the metal substrate is annealed to obtain the strip shaped graphene layer.

Description

technical field [0001] The invention relates to a preparation method of graphene nano-narrow ribbons, in particular to a preparation method of aligned graphene nano-narrow ribbons. Background technique [0002] Graphene has a stable two-dimensional lattice structure and excellent electrical properties, and has rapidly become a "star molecule" in the family of carbon materials in recent years. Due to its compatibility with traditional silicon semiconductor processes and the lack of selective growth faced by carbon nanotubes, graphene shows broad application prospects in the field of micro-nano electronic devices, and is expected to become the core material for building next-generation electronic devices . [0003] The shape of graphene sheets determines its energy band structure, which in turn determines its electrical properties, which in turn determine its application potential. At present, a major challenge for the practical application of graphene-based electronic devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04B82Y40/00
CPCC23C14/5806C23C14/0605C23C14/48
Inventor 林晓阳姜开利范守善
Owner TSINGHUA UNIV
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