A kind of preparation method of graphene array
A graphene array and graphene treatment technology, applied in the field of graphene, can solve the problems of poor shape controllability of the graphene array, unfavorable application of the graphene array, etc., and achieve the effects of simple operation and simple process
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[0024] The present invention provides a method for preparing a graphene array, including:
[0025] Graphene treatment is performed on the surface of the substrate containing the carbon source array to obtain a graphene array.
[0026] In the embodiment of the present invention, the carbon source array may be formed on the surface of the substrate by patterning; in other embodiments, the carbon source array may be formed on the surface of the substrate by printing or spraying. In an embodiment of the present invention, the printing method may be laser printing, inkjet printing or screen printing. The present invention does not have special restrictions on the printing or spraying equipment, as long as those skilled in the art are familiar with printing or spraying equipment or devices.
[0027] In an embodiment of the present invention, the substrate can be placed in a printer, and the carbon source array can be printed on the surface of the substrate. In an embodiment of the presen...
Embodiment 1
[0038] Use photoshop software to design the shape of the carbon source array, such as figure 1 As shown, figure 1 This is a schematic diagram of the carbon source array in Embodiment 1 of the present invention. The designed shape data of the carbon source array is sent to the laser printer. A copper foil substrate with a thickness of 20 microns is placed in the laser printer, and the toner in the laser printer is used. A carbon source array is printed on the surface of the copper foil substrate, the diameter of the carbon source points in the carbon source array is 0.01 mm, and the distance between two adjacent carbon source points is 1 mm.
[0039] Put the above-mentioned copper foil substrate with carbon source array into a reaction furnace, and under the condition of Ar gas injection flow rate of 30 sccm, heat the reaction furnace to 1050°C and anneal the copper foil substrate for 50 minutes to obtain an annealed substrate; Under the action of the mixed gas with a spray flow of...
Embodiment 2
[0042] A carbon source array was sprayed on the surface of a platinum foil with a thickness of 100 microns by spraying. The sprayed paint is carbon powder. The diameter of the carbon source points in the carbon source array is 0.1 mm. The distance between them is 10 mm.
[0043] Put the platinum foil substrate with the carbon source array into a reaction furnace, and under the condition of an Ar gas injection flow rate of 100 sccm, heat the reaction furnace to 1070°C and anneal the copper foil substrate for 180 minutes to obtain an annealed substrate; Under the action of a mixed gas with a spray flow of 20 sccm and a hydrogen with a spray flow of 100 sccm, methane is decomposed at high temperature, and the carbon source array on the surface of the annealed substrate is grown for 180 minutes to obtain a graphene array; the mixed gas has a volume ratio of 99 :1 Ar gas and methane.
[0044] The graphene array prepared in Example 2 of the present invention is observed under a scanning...
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