KR20130060005A - Copper based thin metal layer and manufacturing method of graphene using the same - Google Patents
Copper based thin metal layer and manufacturing method of graphene using the same Download PDFInfo
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- KR20130060005A KR20130060005A KR1020110126273A KR20110126273A KR20130060005A KR 20130060005 A KR20130060005 A KR 20130060005A KR 1020110126273 A KR1020110126273 A KR 1020110126273A KR 20110126273 A KR20110126273 A KR 20110126273A KR 20130060005 A KR20130060005 A KR 20130060005A
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- Prior art keywords
- copper
- thin film
- metal thin
- based metal
- graphene
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82B—NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
- B82B3/00—Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
- B82B3/0004—Apparatus specially adapted for the manufacture or treatment of nanostructural devices or systems or methods for manufacturing the same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/184—Preparation
- C01B32/186—Preparation by chemical vapour deposition [CVD]
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
Abstract
Description
The present invention relates to a metal thin film used for graphene synthesis and a graphene manufacturing method using the same.
Generally, graphite has a structure in which a plate-shaped two-dimensional graphene sheet in which carbon atoms are connected in a hexagonal shape is laminated. Recently, graphene was peeled off from graphite and examined for its properties.
The most notable feature is that when electrons move in graphene, they flow as if the mass of the electrons is zero. This means that the electrons flow at the speed at which the light travels in the vacuum, that is, the light flux. Graphene also has an unusual half-integer quantum hall effect for electrons and holes. In addition, it is known that the electron mobility of graphene has a high value of about 20,000 to 50,000 cm < 2 > / Vs.
As a method for synthesizing graphene, chemical vapor deposition (CVD) may be used. However, in order to be utilized in various fields throughout the industry, research to manufacture high quality graphene must be continuously conducted.
One embodiment of the present invention relates to a copper-based metal thin film for synthesizing high quality graphene and to a graphene manufacturing method using the same.
According to an aspect of the present invention, a copper-based metal thin film for catalytic metal for graphene synthesis, provides a copper-based metal thin film containing 0.001 ~ 0.05 wt% silver.
According to one feature of the invention, the size of the copper grains of the copper-based metal thin film may be at least 20μm or more.
According to another feature of the present invention, it may include oxygen and at least one or more selected from S, As, Sb, Bi, Se, Te, Pb, and Sn.
According to another feature of the invention, the oxygen content may be 0.01 to 0.05 wt%.
According to another feature of the invention, the at least one or more selected from S, As, Sb, Bi, Se, Te, Pb, and Sn may be included in 0.003 wt% or less.
According to another feature of the invention, the thickness of the copper-based metal thin film may be 5 ~ 75 μm.
According to another feature of the invention, the copper grains in the (1 0 0) direction of the copper grains of the copper-based metal thin film may be 80% or more.
According to another feature of the invention, the copper-based metal thin film can be produced by rolling.
According to another aspect of the invention, preparing a copper-based metal thin film containing 0.001 ~ 0.05 wt% of silver and the size of the copper grains of at least 20μm; And growing graphene on the copper-based metal thin film by providing a reaction gas and heat containing carbon to the copper-based metal thin film and reacting the same.
According to one feature of the invention, the thickness of the copper-based metal thin film may be 5 ~ 75 μm.
According to another feature of the invention, at least 80% of the copper grains of the copper-based metal thin film may face the same plane direction.
According to another feature of the invention, the plane direction may be a (10 0) direction.
According to another feature of the present invention, the copper-based metal thin film may include at least one type of winso and oxygen selected from S, As, Sb, Bi, Se, Te, Pb, and Sn.
According to another feature of the invention, the oxygen content may be 0.01 to 0.05 wt%.
According to another feature of the invention, the at least one or more selected from S, As, Sb, Bi, Se, Te, Pb, and Sn may be included in 0.003 wt% or less.
According to one embodiment of the present invention as described above, it is possible to produce a high quality graphene uniform and improved sheet resistance properties.
1A and 1B are conceptual views schematically illustrating copper grains of a copper metal thin film according to an embodiment of the present invention and copper grains of a copper thin film according to a comparative example of the present invention.
Figure 2a shows a cross-sectional image of the FIB-SIMS of the copper-based metal thin film according to an embodiment of the present invention.
2B shows an FIB-SIMS cross-sectional image of a copper thin film according to a comparative example of the present invention.
3A shows an EBSP image of a copper-based metal thin film according to an embodiment of the present invention.
3B shows an EBSP image of a copper thin film according to a comparative example of the present invention.
3C shows an EBSP in situ determination range diagram.
4 is a flowchart schematically showing a graphene manufacturing process using a copper-based metal thin film according to an embodiment of the present invention.
Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.
(Copper Metal Thin Film)
The copper-based metal
The copper-based metal
1A and 1B are conceptual views schematically illustrating copper grains of a copper metal thin film according to an embodiment of the present invention and copper grains of a copper thin film according to a comparative example of the present invention.
1A and 1B, the size of the copper grains G1 of the copper-based metal
The phenomenon in which the size of the copper grains G1 of the copper-based metal
As described above, the copper-based metal
First, a raw material is mix | blended based on the composition of the copper-based metal
After this, rolling is performed. Rolling can repeatedly perform a hot rolling process and a cold rolling process. For example, the process of annealing the hot-rolled cast body above the recrystallization temperature and cold rolling below the recrystallization temperature can be repeatedly performed, and finally, the rolling process can be completed by cold rolling. Through such a rolling step, the cast body may be manufactured from a copper-based metal sheet having a thickness of about 5 to 75 μm. Through the rolling process, the copper-based metal
The copper-based metal
2A and 2B show an FIB-SIMS cross-sectional image of a copper-based metal thin film according to an embodiment of the present invention, and FIG. 1B shows an FIB-SIMS cross-sectional image of a copper thin film according to a comparative example of the present invention. Here, FIB-SIMS represents a Focused Ion Beam Instruments equipped with Secondary Ion Mass Spectrometer. 2A shows an image of copper grains of a copper-based metal thin film after recrystallization.
2A and 2B, it can be seen that the size of the copper grains G1 of the copper-based metal
3A shows an EBSP image of a copper-based metal thin film according to an embodiment of the present invention, FIG. 3B shows an EBSP image of a copper thin film according to a comparative example of the present invention, and FIG. 3C shows an EBSP in situ determination range diagram. Here, EBSP represents Electron Backscatter Diffraction Pattern.
Referring to FIG. 3A, it can be seen that a substantial portion of the copper grains of the copper-based metal
Since the copper-based metal
Hereinafter, a graphene manufacturing process using a copper-based metal thin film according to the present invention will be described with reference to FIG. 4.
In step 410, the copper-based metal
For example, the copper-based metal
In operation 420, graphene is grown on the copper-based metal
Reaction gases containing carbon include methane (CH 4 ), carbon monoxide (CO), ethane (C 2 H 6 ), ethylene (CH 2 ), ethanol (C 2 H 5 ), acetylene (C 2 H 2 ), propane ( CH 3 CH 2 CH 3 ), propylene (C 3 H 6 ), butane (C 4 H 10 ), pentane (CH 3 (CH 2 ) 3 CH 3 ), pentene (C 5 H 10 ), cyclopentadiene (C 5 H 6 ), one or more selected from the group containing carbon atoms such as hexane (C 6 H 14 ), cyclohexane (C 6 H 12 ), benzene (C 6 H 6 ), toluene (C 7 H 8 ) have.
The heat provided to the copper-based metal
As another embodiment of the present invention, before the step 420 of providing a reaction gas and heat containing carbon, the method may further include a pretreatment step of cleaning the surface of the copper-based metal
In step 430, the graphene-grown copper-based metal
Table 1 below is a table comparing the characteristics of the graphene produced using a copper-based metal thin film according to an embodiment of the present invention. The left side of the table shows the characteristics of the graphene fabricated using a copper-based metal thin film according to an embodiment of the present invention, for example, a copper-based metal thin film containing silver, the right side of the table is a metal thin film according to a comparative example of the present invention, namely It shows the characteristics of the graphene produced using a general copper thin film.
In both cases, a thin film having a thickness of 35 μm was used, and all four graphenes were manufactured using the metal thin films according to the Examples and Comparative Examples. Sheet resistance was measured at nine points randomly selected for each graphene.
error
uniformity
10
15
The sheet resistance characteristics are as follows. Looking at Samples 1 to 4 of graphene fabricated using a copper-based metal thin film containing silver according to an embodiment of the present invention, the average sheet resistance per unit area is 399 Ω / sq., Whereas the copper thin film according to the comparative example is used. Looking at the graphene samples produced 5 to 8 it can be seen that the average sheet resistance per unit area is 645 Ω / sq. The sheet resistance between the comparative examples and the examples showed a difference of about 246 Ω / sq.
Meanwhile, the uniformity (umiformity,%) is as follows. Uniformity can be calculated as [(max + min) / (2 * avg)]. The sheet resistance uniformity of the graphene samples prepared using the copper-based metal thin film containing silver according to the embodiment of the present invention is about 10%, whereas the sheet resistance uniformity of the graphene samples prepared using the copper thin film according to the comparative example is It is large, about 15%.
Combining the above features, it can be seen that the graphene fabricated using the copper-based metal thin film according to the embodiment of the present invention is excellent in both sheet resistance and uniformity.
Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, it is intended that the appended claims cover all such modifications and variations as fall within the true spirit of the invention.
100: copper-based metal thin film
10: copper thin film according to the comparative example
G1: Copper grains of a copper metal thin film
G2: Copper grains of the copper thin film according to the comparative example
Claims (15)
Copper-based metal thin film containing 0.001 to 0.05 wt% silver.
The copper-based metal thin film of the copper-based metal thin film is at least 20μm in size.
A copper-based metal thin film comprising oxygen and at least one selected from S, As, Sb, Bi, Se, Te, Pb, and Sn.
The oxygen content is 0.01 ~ 0.05 wt% copper-based metal thin film.
The copper-based metal thin film of at least one or more selected from the S, As, Sb, Bi, Se, Te, Pb, and Sn is 0.003 wt% or less.
The copper-based metal thin film has a thickness of 5 to 75 μm.
The copper-based metal thin film of claim 1, wherein the copper grains in the direction of (1 0 0) among the copper grains of the copper-based metal thin film.
The copper-based metal thin film is a copper-based metal thin film produced by rolling.
Growing graphene on the copper-based metal thin film by providing a reaction gas and heat containing carbon to the copper-based metal thin film and reacting the same.
The copper-based metal thin film has a thickness of 5 ~ 75 μm manufacturing method of graphene.
80% or more of the copper crystal grains of the copper-based metal thin film is directed to the same plane direction.
The surface direction is a manufacturing method of graphene in the (1 0 0) direction.
The copper-based metal thin film is graphene manufacturing method comprising at least one or more of the selected from S, As, Sb, Bi, Se, Te, Pb, Sn and oxygen and oxygen.
The oxygen content is 0.01 ~ 0.05 wt% of the production method of graphene.
At least one or more selected from S, As, Sb, Bi, Se, Te, Pb, and Sn is 0.003 wt% or less.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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KR1020110126273A KR101900758B1 (en) | 2011-11-29 | 2011-11-29 | Copper based thin metal layer and manufacturing method of graphene using the same |
CN201280058356.XA CN103958730B (en) | 2011-11-29 | 2012-10-29 | For the synthesis of the thin metal film of Graphene and utilize its Graphene manufacture method |
PCT/KR2012/008858 WO2013081302A1 (en) | 2011-11-29 | 2012-10-29 | Thin metal film for synthesizinggraphene and graphene manufacturing method using the same |
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KR1020110126273A KR101900758B1 (en) | 2011-11-29 | 2011-11-29 | Copper based thin metal layer and manufacturing method of graphene using the same |
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KR20130060005A true KR20130060005A (en) | 2013-06-07 |
KR101900758B1 KR101900758B1 (en) | 2018-09-20 |
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Cited By (2)
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US9446571B2 (en) | 2013-11-12 | 2016-09-20 | Samsung Display Co., Ltd. | Touch panel and method of manufacturing touch panel |
WO2017204408A1 (en) * | 2016-05-24 | 2017-11-30 | 해성디에스 주식회사 | Electric wire structure and manufacturing method therefor |
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ES2593709B1 (en) * | 2016-07-27 | 2017-11-07 | La Farga Lacambra, S.A.U. | Procedure for obtaining copper sheets as a substrate for the production of high quality graphene |
CN114951610A (en) * | 2022-05-13 | 2022-08-30 | 中车工业研究院有限公司 | Graphene/copper composite material combining precise casting and chemical vapor deposition and preparation method thereof |
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WO2017204408A1 (en) * | 2016-05-24 | 2017-11-30 | 해성디에스 주식회사 | Electric wire structure and manufacturing method therefor |
Also Published As
Publication number | Publication date |
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KR101900758B1 (en) | 2018-09-20 |
WO2013081302A1 (en) | 2013-06-06 |
CN103958730B (en) | 2016-05-25 |
CN103958730A (en) | 2014-07-30 |
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