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Self-assembly preparation method of noble metal-graphene double-layer composite conductive film

A double-layer composite, precious metal technology, applied in metal material coating process, coating and other directions, can solve the problems of high equipment requirements, high cost, and difficult structure control of chemical vapor deposition method, and achieve reliable preparation method and good electrical conductivity. , the effect of simple operation

Inactive Publication Date: 2011-04-20
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical vapor deposition method has high equipment requirements, high cost, and difficult to control the structure
Microporous filtration method, the process is simple and easy to control, but the obtained graphene film has a strong effect on the filter matrix, and it is difficult to separate the film from the matrix
The films obtained by the above methods are all graphene films with a single component. At present, there are no reports of multi-components, especially multi-component composites, but each component is separated.

Method used

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  • Self-assembly preparation method of noble metal-graphene double-layer composite conductive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: Mix 1 mL of silver nitrate aqueous solution (5 mg / mL) with 8 mL of graphene oxide ethanol dispersion (2 mg / mL), then add 0.1 mL of dispersant solution (0.1 mg / mL), ultrasonically disperse for 10 minutes, and mix liquid was transferred to a glass substrate. The solvent was evaporated at a constant temperature at 50° C. to form a film, and the obtained film was treated with hydrazine vapor for 24 hours to obtain a silver-graphene double-layer composite conductive film.

Embodiment 2

[0015] Example 2: Mix 2 mL of silver nitrate solution (5 mg / mL) with 7 mL of graphene oxide aqueous dispersion (2 mg / mL), then add 0.2 mL of dispersant (0.1 mg / mL), ultrasonically disperse for 10 minutes, and dissolve the mixture Transfer to a Teflon substrate. The solvent was evaporated at a constant temperature at 30° C. to form a film, and the obtained film was treated with hydrazine vapor for 24 hours to obtain a silver-graphene double-layer composite conductive film.

Embodiment 3

[0016] Example 3: Mix 6 mL of silver ammonia solution (5 mg / mL) with 3 mL of graphene oxide methanol dispersion (2 mg / mL), then add 0.05 mL of dispersant (0.1 mg / mL), ultrasonically disperse for 10 minutes, and dissolve the mixture onto polycrystalline silicon substrates. The solvent was evaporated at a constant temperature at 50° C. to form a film, and the obtained film was treated with hydrazine vapor for 24 hours to obtain a silver-graphene double-layer composite conductive film.

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PUM

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Abstract

The invention provides a self-assembly preparation method of a noble metal-graphene double-layer composite conductive film. The noble metal-graphene double-layer composite conductive film is obtained by taking noble metal ions or complex ions and graphene oxide as raw materials and adopting a solvent-induced self-assembly method. In the method, the thickness of the noble metal layer, the graphenelayer and the overall film of the double-layer composite conductive film can be regulated and controlled through concentrations and volumes of noble metal ionic solution and graphene oxide solution, and the electrical conductivities of the silver layer and the graphene layer in the double-layer composite conductive film can be regulated and controlled. The invention provides a stable and reliablepreparation method of the noble metal-graphene double-layer composite conductive film which can be applied to an electronic device.

Description

Technical field [0001] The invention relates to a noble metal and reduced graphene oxide conductive composite material technology, in particular to a noble metal-graphene double-layer composite conductive film and a preparation method thereof. Background technique [0002] Graphene is another new carbon structural form discovered by scientists after fullerene and carbon nanotubes. It is a new type of two-dimensional planar nanomaterial. Its special single atomic layer structure determines its rich and Novel physical properties. Graphene is a substance without an energy gap, exhibits metallic properties, and has excellent electrical conductivity; holes and electrons in graphene are separated from each other, resulting in new electronic conduction phenomena, such as: quantum Hall effect. Graphene exhibits a series of peculiar electronic and physical properties, which have important application prospects in the fields of molecular electronics, micro-nano devices, ultra-high-sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C26/00
Inventor 徐伟箭欧恩才张小娟熊远钦陈忠明向育军钱江涛
Owner HUNAN UNIV
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