CN105931758A - Preparation method for graphene conductive thin film - Google Patents
Preparation method for graphene conductive thin film Download PDFInfo
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- CN105931758A CN105931758A CN201610465355.7A CN201610465355A CN105931758A CN 105931758 A CN105931758 A CN 105931758A CN 201610465355 A CN201610465355 A CN 201610465355A CN 105931758 A CN105931758 A CN 105931758A
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- graphene
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
Abstract
The invention discloses a preparation method for a graphene conductive thin film, and belongs to the technical field of conductive thin film production. The preparation method comprises the following steps of A, depositing a nickel layer: depositing a nickel thin film layer with a thickness which is equal to that of 1-3 nickel atoms on a glass substrate; B, depositing a graphene layer: depositing a graphene thin film layer by a CVD method, wherein the graphene thin film layer is 50-100[mu]m in thickness; and C, cleaning and drying: reducing the temperature of the semifinished product obtained in the step B, then cleaning the graphene thin film layer after the temperature is reduced to the room temperature, next, removing the nickel thin film layer from the surface, and drying. The preparation method has the advantages of low production cost and high efficiency.
Description
Technical field
The present invention relates to the preparation method of graphene conductive film, belong to conductive film production technical field.
Background technology
Along with the development of science and technology, the demand of new material is also got more and more by society.Material is human civilization progress
With the material base of development in science and technology, the renewal of material makes the life of people also there occurs great variety.At present, flourish new
Type transparent and conduction thin-film material at liquid crystal display, touch screen, smart window, solaode, microelectronics, information sensing
The fields such as device even military project are obtained for and are widely applied, and are penetrating in other sciemtifec and technical sphere.Due to thin film technique
Closely related with multiple technologies, thus excite the scientists of every field to film preparation and the interest of performance thereof.
Conductive film is a kind of energy conduction, realizes the thin film of some specific electric functions, is widely used in display, touches
Touch in the electronic devices such as screen and solaode.At present, as a kind of transparent and conducting semiconductor material tin indium oxide
(ITO), it is widely used in film applications always.By using magnetron sputtering evaporation ITO to prepare transparent leading over the transparent substrate
Conductive film, transparent base includes such as glass and polyethylene terephthalate (PET) thin film etc..Because tin indium oxide has height
Electrical conductivity, high pass light rate, so becoming one of main material preparing conductive film.But, tin indium oxide conductive film makes
There is also some shortcomings during with, including: (1) indium resource is less, causes price continuous rise so that ITO becomes the most high
Expensive material, such as spraying, pulsed laser deposition, plating etc..And Indium sesquioxide. has certain toxicity, recycle unreasonable easily causing
Environmental pollution.(2) characteristic crisp for ITO makes it can not meet some new opplication (the most flexible flexible display, touch
Screen, organic solar batteries) performance requirement, be not suitable for the production of flexible electronic device of future generation.The two of Graphene uniqueness
Dimension crystal structure, imparts the performance of its uniqueness, and research finds, Graphene has the electrical property of excellent mechanical performance and excellence
Matter, under room temperature, the electron mobility of Graphene is up to 15000cm2v-1s-1, and resistivity is only 10-6Ωcm.Graphene is being permitted
Many-sided have more potential advantage than tin indium oxide, such as quality, robustness, pliability, chemical stability, infrared light transmission
Property and price etc..Therefore Graphene is expected to replace tin indium oxide very much, is used for developing thinner, the conduction faster flexible electronic of speed
Device.
At present, the preparation method of Graphene mainly has: micromechanics stripping method, oxidation-reduction method, chemical vapour deposition technique, have
Machine molecule intercalation method etc..Chemical vapour deposition technique is used by Somani etc. from 2006, with camphanone (Camphora) as presoma,
Obtaining graphene film on nickel foil, scientists achieves and much obtains grinding of thickness controllable grapheme lamella in different matrix
Study carefully progress.By carrying out chemical etching on metallic matrix, graphene sheet layer is separated and transfers on another matrix, and this is just
Eliminate complicated machinery or chemical treatment method and obtain high-quality graphene sheet layer.The states such as Korea S and Japan adopt one after another
Prepared big size graphene transparent conductive film in this way, it is desirable to main application fields be in flat-panel screens
On, serve as anode.The such as exploitation in new OLED (OLED), OLED has low cost, all solid state, main
Move luminescence, brightness height, contrast height, visual angle width, fast response time, thickness are thin, low-voltage direct-current drives, low in energy consumption, work temperature
Spend wide ranges, the features such as soft screen shows can be realized, become the developing direction of future display technology.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of new graphene conductive film, production cost is low, and energy
Produce large-area graphene conductive film, it is possible to meet the demand of large-scale production.
In order to realize foregoing invention purpose, technical scheme is as follows:
The preparation method of graphene conductive film, it is characterised in that: comprise the following steps:
A. deposited nickel layer
The nickel thin layer that 1~3 nickle atom of deposition is thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering
Method, background vacuum: 1 × 10-5~1 × 10-4Pa, sputtering pressure 1~5Pa, underlayer temperature 50~85 DEG C.
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 50~100 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
In order to the present invention is better achieved, further, in step B, described CVD deposited graphite alkene thin layer process
In, carbon source is methane, and gas is H2Mixed gas with He;The temperature of deposition is 580~650 DEG C, and the pressure of deposition is 1 × 10-4~6 × 10-4Pa。
In step C, described cleaning refers to, with weak acid solution, the semi-finished product after cooling are soaked 1~3h.
In step C, described dry condition is to be dried 30~35min at 115~130 DEG C.
The light transmittance of described graphene conductive film is 79~83%.
The resistance of described graphene conductive film: use stone on SB100A/2 type four-point probe test slide base material
The film resistor of ink alkene thin film, the distance between probe is 3mm, and this graphene conductive film resistance is at 1.1~1.5M Ω/sq.
Beneficial effects of the present invention:
Compared with prior art, the present invention breaches the restriction of original technology, it is achieved that transparent graphene conductive film in reality
Test the leap to the large scale application of industrial applications of the indoor small size, there is production cost low, the advantage that efficiency is high, and this
Invent by further parameter optimization, furthermore achieved that prepared conductive film visible light transmittance rate is high, surface cleaning without
Polluting, pliability is good, and image shows effect clearly, is suitable for large-scale production, is expected to substitute tradition inorganic oxide electrode material
Material ITO, promotes the development of conductive film industry, has preferable economic benefit and social benefit.
Detailed description of the invention
Embodiment 1
The preparation method of graphene conductive film, comprises the following steps:
A. deposited nickel layer
The nickel thin layer that 1 nickle atom of deposition is thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering method,
Background vacuum: 1 × 10-5Pa, sputtering pressure 1Pa, underlayer temperature 50 DEG C.
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 50 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
Embodiment 2
The preparation method of graphene conductive film, comprises the following steps:
A. deposited nickel layer
The nickel thin layer that 3 nickle atoms of deposition are thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering method,
Background vacuum: 1 × 10-4Pa, sputtering pressure 5Pa, underlayer temperature 85 DEG C.
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 100 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
Embodiment 3
The preparation method of graphene conductive film, comprises the following steps:
A. deposited nickel layer
The nickel thin layer that 2 nickle atoms of deposition are thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering method,
Background vacuum: 4 × 10-5Pa, sputtering pressure 5Pa, underlayer temperature 65 DEG C.
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 60 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
In the present embodiment step B, during described CVD deposited graphite alkene thin layer, carbon source is methane, and gas is H2With
The mixed gas of He;The temperature of deposition is 580 DEG C, and the pressure of deposition is 1 × 10-4Pa。
Embodiment 4
The preparation method of graphene conductive film, comprises the following steps:
A. deposited nickel layer
The nickel thin layer that 1 nickle atom of deposition is thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering method,
Background vacuum: 1 × 10-4Pa, sputtering pressure 1Pa, underlayer temperature 85 DEG C.
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 50 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
In the present embodiment step B, during described CVD deposited graphite alkene thin layer, carbon source is methane, and gas is H2With
The mixed gas of He;The temperature of deposition is 650 DEG C, and the pressure of deposition is 6 × 10-4Pa。
In step C, described cleaning refers to, with weak acid solution, the semi-finished product after cooling are soaked 1h.
In step C, described dry condition is to be dried 30min at 115 DEG C.
Embodiment 5
The preparation method of graphene conductive film, comprises the following steps:
A. deposited nickel layer
The nickel thin layer that 3 nickle atoms of deposition are thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering method,
Background vacuum: 1 × 10-5Pa, sputtering pressure 3Pa, underlayer temperature 70 DEG C.
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 100 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
In the present embodiment step B, during described CVD deposited graphite alkene thin layer, carbon source is methane, and gas is H2With
The mixed gas of He;The temperature of deposition is 600 DEG C, and the pressure of deposition is 2 × 10-4Pa。
In step C, described cleaning refers to, with weak acid solution, the semi-finished product after cooling are soaked 3h.
In step C, described dry condition is to be dried 35min at 130 DEG C.
The light transmittance of the graphene conductive film that the present embodiment prepares is 79%, and detection method is: use U-3010 type purple
Outward-visible spectrophotometer, with blank slide as reference, measures the saturating of graphene film in 400-900 nm wave-length coverage
Light rate, and using the light transmittance at the nm of wavelength X=550 as the light transmittance of the present embodiment graphene film.
The resistance of the graphene conductive film of the present embodiment is 1.1 M Ω/sq, and detection method is: use SB100A/2 type
The film resistor of graphene film on four-point probe test slide base material, the distance between probe is 3 mm.
Embodiment 6
The preparation method of graphene conductive film, comprises the following steps:
A. deposited nickel layer
The nickel thin layer that 3 nickle atoms of deposition are thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering method,
Background vacuum: 5 × 10-5Pa, sputtering pressure 1.5Pa, underlayer temperature 65 DEG C.
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 100 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
In the present embodiment step B, during described CVD deposited graphite alkene thin layer, carbon source is methane, and gas is H2With
The mixed gas of He;The temperature of deposition is 585 DEG C, and the pressure of deposition is 3 × 10-4Pa。
In step C, described cleaning refers to, with weak acid solution, the semi-finished product after cooling are soaked 2.5h.
In step C, described dry condition is to be dried 32min at 125 DEG C.
The light transmittance of the graphene conductive film that the present embodiment prepares is 83%, and detection method is: use U-3010 type purple
Outward-visible spectrophotometer, with blank slide as reference, measures the saturating of graphene film in 400-900 nm wave-length coverage
Light rate, and using the light transmittance at the nm of wavelength X=550 as the light transmittance of the present embodiment graphene film.
The resistance of the graphene conductive film of the present embodiment is 1.5 M Ω/sq, and detection method is: use SB100A/2 type
The film resistor of graphene film on four-point probe test slide base material, the distance between probe is 3mm.
Embodiment 7
The preparation method of graphene conductive film, comprises the following steps:
A. deposited nickel layer
The nickel thin layer that 3 nickle atoms of deposition are thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering method,
Background vacuum: 8.5 × 10-5Pa, sputtering pressure 3Pa, underlayer temperature 70 DEG C.
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 100 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
In the present embodiment step B, during described CVD deposited graphite alkene thin layer, carbon source is methane, and gas is H2With
The mixed gas of He;The temperature of deposition is 580 DEG C, and the pressure of deposition is 5 × 10-4Pa。
In step C, described cleaning refers to, with weak acid solution, the semi-finished product after cooling are soaked 3h.
In step C, described dry condition is to be dried 30min at 125 DEG C.
The light transmittance of the graphene conductive film that the present embodiment prepares is 81%, and detection method is: use U-3010 type purple
Outward-visible spectrophotometer, with blank slide as reference, measures the saturating of graphene film in 400-900 nm wave-length coverage
Light rate, and using the light transmittance at the nm of wavelength X=550 as the light transmittance of the present embodiment graphene film.
The resistance of the graphene conductive film of the present embodiment is 1.2 M Ω/sq, and detection method is: use SB100A/2 type
The film resistor of graphene film on four-point probe test slide base material, the distance between probe is 3mm.
Claims (6)
1. the preparation method of graphene conductive film, it is characterised in that: comprise the following steps:
A. deposited nickel layer
The nickel thin layer that 1~3 nickle atom of deposition is thick on the glass substrate;The method of described deposition nickel thin layer is magnetron sputtering
Method, background vacuum: 1 × 10-5~1 × 10-4Pa, sputtering pressure 1~5Pa, underlayer temperature 50~85 DEG C;
B. deposited graphite alkene layer
Using CVD deposited graphite alkene thin layer, the thickness of described graphene film layer is 50~100 μm;
C. clean, be dried
Semi-finished product step B obtained carry out cooling process, after temperature is down to room temperature, are carried out by graphene film layer,
Remove surface nickel thin layer, be then dried.
2. the preparation method of graphene conductive film as claimed in claim 1, it is characterised in that: in step B, described CVD
During deposited graphite alkene thin layer, carbon source is methane, and gas is H2Mixed gas with He;The temperature of deposition is 580~650
DEG C, the pressure of deposition is 1 × 10-4~6 × 10-4Pa。
3. the preparation method of graphene conductive film as claimed in claim 1, it is characterised in that: in step C, described cleaning is
Semi-finished product after cooling are soaked 1~3h by finger weak acid solution.
4. the preparation method of graphene conductive film as claimed in claim 1, it is characterised in that: in step C, described dry
Condition is to be dried 30~35min at 115~130 DEG C.
5. the preparation method of the graphene conductive film as described in any one of Claims 1 to 4, it is characterised in that: described graphite
The light transmittance of alkene conductive film is 79~83%.
6. the preparation method of the graphene conductive film as described in any one of Claims 1 to 4, it is characterised in that: described graphite
The resistance of alkene conductive film: use the thin-film electro of graphene film on SB100A/2 type four-point probe test slide base material
Resistance, the distance between probe is 3mm, and this graphene conductive film resistance is at 1.1~1.5M Ω/sq.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107799232A (en) * | 2017-10-27 | 2018-03-13 | 成都天航智虹知识产权运营管理有限公司 | The preparation method of graphene conductive film |
CN107887075A (en) * | 2017-10-27 | 2018-04-06 | 成都天航智虹知识产权运营管理有限公司 | A kind of method for preparing graphene conductive film |
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JP2012234796A (en) * | 2011-04-20 | 2012-11-29 | Nitto Denko Corp | Method of producing conductive laminated film |
CN104779015A (en) * | 2015-05-06 | 2015-07-15 | 南京汉能薄膜太阳能有限公司 | Preparation method for graphene transparent conducting thin film |
CN104900497A (en) * | 2015-06-15 | 2015-09-09 | 北京工业大学 | Method for directly growing graphene on nonmetallic substrate |
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- 2016-06-24 CN CN201610465355.7A patent/CN105931758A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012234796A (en) * | 2011-04-20 | 2012-11-29 | Nitto Denko Corp | Method of producing conductive laminated film |
CN104779015A (en) * | 2015-05-06 | 2015-07-15 | 南京汉能薄膜太阳能有限公司 | Preparation method for graphene transparent conducting thin film |
CN104900497A (en) * | 2015-06-15 | 2015-09-09 | 北京工业大学 | Method for directly growing graphene on nonmetallic substrate |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107799232A (en) * | 2017-10-27 | 2018-03-13 | 成都天航智虹知识产权运营管理有限公司 | The preparation method of graphene conductive film |
CN107887075A (en) * | 2017-10-27 | 2018-04-06 | 成都天航智虹知识产权运营管理有限公司 | A kind of method for preparing graphene conductive film |
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