Preparation method of narrow graphene nanoribbons

A nano-narrow-band, graphene technology, applied in the fields of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the difficulty in controlling the size of graphene strips, and the difficulty and control of the patterned arrangement of catalyst particles. problems such as size and shape, to achieve the effect of easy size control, simple preparation and high efficiency

Active Publication Date: 2013-10-23
TSINGHUA UNIV +1
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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

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preparation example Construction

[0019] Please also refer to figure 1 and figure 2 , the embodiment of the present invention provides a kind of preparation method of graphene nano-narrow belt 10, and this method comprises the following steps:

[0020] S1: provide a substrate 20, arrange a graphene film 30 on the upper surface of the substrate 20, arrange two mutually parallel strip electrodes at intervals on the surface of the graphene film 30 away from the substrate 20, and connect with the graphene film 30 electrical insulation;

[0021] S2: Provide a carbon nanotube drawn film composite structure 40, covering the surface of the graphene film 30 away from the substrate 20, the carbon nanotube drawn film composite structure 40 is in electrical contact with the two strip electrodes, the carbon nanotube The pulled film composite structure 40 is composed of a carbon nanotube drawn film structure 400 and a polymer material 60. The carbon nanotube drawn film structure 400 includes a plurality of aligned carbon...

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Abstract

A method for making a strip shaped graphene layer includes the steps of: first, a graphene film is located on a surface of a substrate is provided. Second, a drawn carbon nanotube film composite is disposed on the graphene film. The drawn carbon nanotube film composite includes a polymer material and a drawn carbon nanotube film structure disposed in the polymer material. The drawn carbon nanotube film structure includes a plurality of carbon nanotube segments and a plurality of strip-shaped gaps between the adjacent carbon nanotube segments. Third, the polymer material is partly removed to expose the plurality of carbon nanotube segments. Forth, the plurality of carbon nanotube segments and the graphene film covered by the plurality of carbon nanotube segments is etched. Fifth, the remained polymer material is removed 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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04B82Y40/00
CPCC01B31/0438B82Y30/00B82Y40/00C01B32/19H01L21/02444
Inventor 林晓阳姜开利范守善
Owner TSINGHUA UNIV
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