Preparation method of carbon film obtained by self assembly of graphene oxide or its derivatives

A technology of derivatives and graphene, which is applied in the field of preparation of highly ordered carbon films, can solve problems such as poor bonding between carbon films and substrates, difficulty in controlling the thickness of carbon films, and complicated preparation processes, achieving simple process, good mechanical properties, The effect of simple preparation process

Active Publication Date: 2013-11-06
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of poor bonding between the existing carbon film and the substrate, complex preparation process, high cost, and difficulty in controlling the thickness of the carbon film during the preparation process. The present invention provides a self- Carbon film obtained by assembly and preparation method thereof

Method used

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  • Preparation method of carbon film obtained by self assembly of graphene oxide or its derivatives
  • Preparation method of carbon film obtained by self assembly of graphene oxide or its derivatives
  • Preparation method of carbon film obtained by self assembly of graphene oxide or its derivatives

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specific Embodiment approach 1

[0025] Specific Embodiment 1: This embodiment is a carbon film obtained by self-assembly of graphene oxide or its derivatives, which is obtained by self-assembly of graphene oxide or its derivatives as a raw material. The electrical conductivity of the carbon film is 1 to 10 3 S / cm, wherein the graphene oxide derivatives are prepared by modifying graphene oxide with organic amines or organic alcohols.

[0026] The surface of the carbon film in this embodiment is flat and smooth, has good light transmission performance and good mechanical properties, the modulus is 80-120GPa, and the hardness is 7-9GPa; the carbon film is oriented and ordered along the surface of the substrate, and the thickness is 50nm- 2 μm.

[0027] The graphene oxide raw material in this embodiment is a commercially available product, or is prepared by an existing published chemical oxidation method.

specific Embodiment approach 2

[0028] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the conductivity of the carbon film is 1×10 2 ~9×10 2 S / cm. Other parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the electrical conductivity of the carbon film is 6×10 2 S / cm. Other parameters are the same as in the first embodiment.

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Abstract

The invention discloses a carbon film obtained by self assembly of graphene oxide or its derivatives and a preparation method thereof, and relates to a preparation method for a highly ordered carbon film. The objective of the invention is to solve the problems existing in the prior art that the combination between a carbon film and a substrate is poor, the preparation technology is complex, the cost is high, and the thickness of carbon films is difficult to control in the process of preparation. The carbon film provided in the invention uses graphene oxide or its derivatives as the raw material and is obtained through the process of self assembly. The carbon film is prepared by the following steps: dispersing graphene oxide or its derivatives in a solvent so as to obtain a solution, immersing a substrate into the solution and allowing the solution to stand at a constant temperature for assembly, wherein the temperature is in a range of 50 to 100 DEG C. The carbon film prepared in the invention has smooth surfaces, strong bonding force to the substrate and good light transmittance and mechanical properties; the modulus of the carbon film is 80 to 120 GPa, and the hardness is 7 to 9 Gpa; the carbon film is orderly orientated along the surface of the substrate, and the thickness of the carbon film is 10 nm to 2 mu m. The preparation process is controllable and concise and produces products with controllable thickness. The carbon film provided in the invention has broad application prospects in such fields as electrode materials, electronic chips, solar cells and high efficient catalysis.

Description

technical field [0001] The invention relates to a preparation method of a highly ordered carbon film. Background technique [0002] Carbon film material is a kind of film material with important application prospects. It mainly includes diamond-like type and graphite-like type. It has the characteristics of high strength, wear resistance, corrosion resistance, and excellent photoelectric performance. Abrasive materials, photoelectric functional films and high-temperature semiconductor materials and other fields. The preparation technology of carbon film includes physical vapor deposition and chemical vapor deposition, such as magnetron sputtering, ion beam sputtering, atomic layer deposition technology, etc., and these technologies are generally difficult to control the deposition thickness, easy to wrinkle, large internal stress, and substrate bonding. Insufficient strength and other problems, and at the same time the disadvantages of high equipment cost and difficulty in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/22C04B41/85
Inventor 李垚牛永安赵九蓬
Owner HARBIN INST OF TECH
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