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Graphene glass and preparation method thereof

A graphene and graphene layer technology, applied in coatings and other directions, can solve the problems of influence, metal pollution, influence on the light transmittance performance of graphene glass, etc., and achieve the effects of excellent surface resistance, low surface resistance, and uniform number of layers

Pending Publication Date: 2021-01-26
BEIJING GRAPHENE INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the quality of graphene glass prepared by this method has improved to some extent, it has brought more serious metal pollution problems.
This problem will seriously affect the light transmittance performance of graphene glass, thereby affecting its application.

Method used

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  • Graphene glass and preparation method thereof
  • Graphene glass and preparation method thereof
  • Graphene glass and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0028]The preparation method of the present invention may also include other auxiliary steps, such as performing plasma treatment on the glass substrate to clean the surface of the glass substrate before chemical vapor deposition. The plasma treatment is to use oxygen plasma to treat the glass substrate, the amount of oxygen introduced is 1-100sccm, the power is 10-500W, and the treatment time is 1min-15min.

[0029] The glass substrate used in the present invention may be quartz glass, sapphire glass, high boron glass, high alumina glass or borosilicate glass.

Embodiment 1

[0033] The glass substrate is ultrasonically treated with deionized water, ethanol, and acetone in sequence, wherein the glass substrate is quartz glass. Put the cleaned quartz glass into the plasma equipment, set the power of the plasma equipment to 60W, and treat with oxygen plasma for 10 minutes. Vapor deposition process, see figure 1 . First, put the treated quartz glass substrate into the quartz tube of the tube furnace, heat it under the air atmosphere, evacuate to 0pa, open the argon flow valve and let the argon gas into the normal pressure, and finally carry out the chemical vapor deposition process. The chemical vapor deposition atmosphere is a mixed gas of methane, hydrogen, argon, and methanol vapor. The gas flow rate of methane is 10 sccm, the gas flow rate of hydrogen gas is 260 sccm, and the gas flow rate of argon gas is 600 sccm. The gas flow rate is 50 sccm, the gas deposition temperature is 1100° C., and the growth time is 420 min. Take out the grown graphe...

Embodiment 2

[0035] Prepare according to the method for Example 1, the difference is that the gas flow of methane is 50 sccm, the gas flow of hydrogen is 260 sccm, the gas flow of argon is 600 sccm, and the argon flow used in methanol is passed into by bubbling method is 30 sccm; The deposition temperature is 1100°C, and the growth time is 420min. The finally obtained graphene glass has a transmittance of 82.1% and a surface resistance of 786Ω / sq.

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Abstract

The invention provides graphene glass and a preparation method thereof. The graphene glass comprises a glass substrate and a graphene layer directly growing on the glass substrate, the optical transmittance of the graphene glass is 82.1%-90.0%, and the surface resistance of the graphene glass is 786-1133 omega / sq. The preparation method of the graphene glass is characterized in that a graphene layer is directly grown on a glass substrate through chemical vapor deposition, and water vapor and / or a water vapor precursor are / is introduced in the growth process. According to the high-quality graphene glass with the uniform number of layers directly prepared without the metal catalyst and the preparation method of the high-quality graphene glass, water vapor is introduced in the chemical vapordeposition process, the nucleation density and the domain area size in the graphene growth process are controlled, and then the high transmittance and the low area resistance of the graphene glass areachieved.

Description

technical field [0001] The invention relates to the field of materials, in particular to a graphene glass and a preparation method thereof. Background technique [0002] Graphene glass is a new type of composite material that combines graphene and glass. It not only has good light transmission, but also has electrical and thermal conductivity, corrosion resistance and self-cleaning properties. The emergence of graphene glass is a key step for graphene to move from the laboratory to practical applications, and it also provides a solid material basis for the further application of glass in the field of high-end consumer goods. [0003] Compared with liquid-phase smearing and transfer methods, the direct growth of graphene on glass substrates by chemical vapor deposition has obvious advantages. It not only avoids the small size of graphene sheets, many defects, and uneven layers caused by the liquid-phase smearing method, but also avoids the pollution of graphene chemical reag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/22
CPCC03C17/22C03C2217/28C03C2218/152
Inventor 顾伟郑凯强刘冰之杨贵奇余嫦王文高翾
Owner BEIJING GRAPHENE INST
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