CN105788708A - Manufacturing method of orderly-distributed conductive thin film - Google Patents
Manufacturing method of orderly-distributed conductive thin film Download PDFInfo
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- CN105788708A CN105788708A CN201610322091.XA CN201610322091A CN105788708A CN 105788708 A CN105788708 A CN 105788708A CN 201610322091 A CN201610322091 A CN 201610322091A CN 105788708 A CN105788708 A CN 105788708A
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- conductive filler
- conductive film
- conductive
- distribution
- suspension
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000010409 thin film Substances 0.000 title abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 239000011231 conductive filler Substances 0.000 claims abstract description 25
- 239000000725 suspension Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 229920000642 polymer Polymers 0.000 claims abstract description 6
- 125000000524 functional group Chemical group 0.000 claims abstract description 3
- 239000003960 organic solvent Substances 0.000 claims abstract description 3
- 238000009826 distribution Methods 0.000 claims description 36
- 238000007711 solidification Methods 0.000 claims description 15
- 230000008023 solidification Effects 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000007641 inkjet printing Methods 0.000 claims description 2
- 238000007644 letterpress printing Methods 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims description 2
- 238000007639 printing Methods 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 claims description 2
- 238000002834 transmittance Methods 0.000 abstract description 15
- 230000003287 optical effect Effects 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 37
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 16
- 239000011521 glass Substances 0.000 description 16
- 230000005540 biological transmission Effects 0.000 description 10
- 239000004020 conductor Substances 0.000 description 10
- 239000000523 sample Substances 0.000 description 10
- 229910052709 silver Inorganic materials 0.000 description 10
- 239000004332 silver Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 7
- 239000000945 filler Substances 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 5
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 239000002082 metal nanoparticle Substances 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010019909 Hernia Diseases 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 229960000956 coumarin Drugs 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 indium zinc metal-oxide Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electric Cables (AREA)
- Laminated Bodies (AREA)
- Non-Insulated Conductors (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a manufacturing method of an orderly-distributed conductive thin film. The method includes the following steps that: a conductive filler coats a substrate by adopting a coating method according to which the conductive filler coats the substrate once or a plurality of times, wherein the coating method is an optical alignment and orientation type coating method; and after drying and curing are carried out, the conductive thin film can be formed. Each coating process includes the following steps that: (1) a chain type high-molecular polymer linked with a photosensitive functional group is dissolve in an organic solvent, and an obtained mixture is mixed with the conductive filler, so that a suspension can be obtained; (2) the suspension coats the surface of the substrate; and (3) UV polarized light is emitted to the surface of the substrate, so that the conductive filler can form an orientated structure. With the manufacturing method adopted, a small quantity of conductive filler can be utilized to form an orderly-distributed mesh structure, and the transparent conductive thin film with high light transmittance and low surface resistance can be obtained.
Description
The application be based on application number be 201310728460.1, the applying date be that December 25 day, in 2013 are called the divisional application of the Chinese invention patent application of " conductive film of a kind of ordered distribution and manufacture method thereof ".
Technical field
The invention belongs to a kind of conductive film, the specifically conductive film of a kind of ordered distribution.
Background technology
Transparent conductive film refers to while having superior electrical conductivity energy, has the thin film of higher light transmittance at visible light wave range.It is commonly applied to contact panel, the transparency electrode of solar film battery, flat faced display, can electroluminescence device etc..And along with various devices are towards the development of lightening, flexibleization, flexible transparent conductive film owing to having flexible, the advantage such as frivolous and obtain the extensive concern of all circles.
Making transparent conductive film is generally adopted metal-oxide film and does conductive coating structure at present, applying maximum is ITO and indium zinc metal-oxide, shows to form one layer of conductive indium-zinc oxide thin film at transparent glass or plastic by the method being deposited with or sputtering.But whole coating process needs to carry out under condition of high vacuum degree, and coating temperature and after annealing will at high temperature carry out, and equipment requirements is significantly high.And metal-oxide is when being subject to extraneous stress effect or bending, it is easy to be damaged, limit its development in flexible device field.
The conductive material being currently used for making transparent conductive film mainly has: metal nanometer line, metal nanoparticle, conducting high polymers thing, Graphene, CNT etc..Wherein adopt the transparent conductive film that linear conductance filler makes to have electric conductivity and the light transmittance of excellence, after repeatedly bending, be maintained to relatively low sheet resistance value.Therefore most potential replacement ITO is used for making transparent conductive film.
In traditional transparent conductive film, linear conductance filler forms network structure by random and realizes electric conductivity, and therefore conductive layer needs and reaches a certain amount of linear conductance filler to ensure that it has relatively low sheet resistance.But increasing of linear conductance filer content, the decline of thin film light transmittance, mist degree can be caused to improve, affect using value.New make technique it is thus desirable to a kind of, only use a small amount of linear conductance filler to form the network structure of ordered distribution, make the transparent conductive film of high transmission rate, low sheet resistance.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of high transmission rate, low sheet resistance conductive film.
In order to achieve the above object, the present invention by the following technical solutions: the conductive film of a kind of ordered distribution, including substrate and the conductive layer being arranged on substrate；Described conductive layer is formed by conductive filler ordered distribution.Compared to prior art, the conductive film of a kind of ordered distribution of the present invention, its conductive layer is formed by conductive filler ordered distribution, thus forming the structure of ordered distribution.Utilize this technique, only use a small amount of linear conductance filler to form the network structure of ordered distribution, it is possible to make the transparent conductive film of high transmission rate, low sheet resistance.The light transmittance of membrane of conducting layer can reach more than 95%, and its square resistance is low to moderate below 45 Ω/mouth, it is possible to realize excellent light transmission and electric conductivity simultaneously.
Further, described conductive filler ordered distribution is one-dimension oriented distribution in the same direction.
Further, described conductive filler ordered distribution is the two-dimentional crossed orientation distribution along 0 ° to 90 °.
Further, described conductive filler ordered distribution is the distribution of second vertical crossed orientation.
Further, described conductive filler is metal nanometer line, CNT, metal nanoparticle, Graphene, conducting polymer or oxidized metal.
Another technical scheme of the present invention is as follows: the conductive film of a kind of ordered distribution, including substrate and the conductive layer being arranged on substrate, also includes one for the orientation rete of orientation；Described conductive layer is coated on alignment film by conductive filler and is formed, to form the structure of ordered distribution.Orientation rete has the effect arranging conductive filler in optical anisotropic layer.
Further, described conductive filler ordered distribution is one-dimension oriented distribution in the same direction.
Further, described conductive filler ordered distribution is the two-dimentional crossed orientation distribution along 0 ° to 90 °.
Further, described conductive layer is arranged on top or the bottom of this alignment film or is one with alignment film.
Further object is that a kind of preparation technology simple and fast of offer, it is possible to produce the manufacture method of high connductivity, high transmission rate thin film.
In order to achieve the above object, the present invention is by the following technical solutions: is coated on substrate by conductive ink through 1 time or the method that is repeatedly coated with, forms conductive film after dry solidification；Described painting method is orientating type coating.
Further, every layer of conductive filler distribution differently-oriented directivity is once parallel with front.
Further, the distribution of every layer of conductive filler to direction with front once at an angle；The scope of this angle is between 0 ° to 90 °.
Further, every layer of conductive filler distribution differently-oriented directivity is once vertical with front.
Further, it is achieved the mode of orientation is mechanics orientation, light orientation orientation or chemistry orientation.
Further, coating process is hairbrush coating, roller rod coating, silk screen printing, intaglio printing, letterpress or inkjet printing.
Accompanying drawing explanation
Fig. 1 is conductive material scattergram of the prior art
Fig. 2 is the one-dimension oriented scattergram in the same direction of the conductive material in the present invention
Fig. 3 is the second vertical crossed orientation scattergram of the conductive material in the present invention
Fig. 4 is the two-dimentional crossed orientation scattergram along different directions of the conductive material in the present invention
Referring to drawings and the specific embodiments, the invention will be further described.
Detailed description of the invention
Embodiment 1
The HPMC aqueous solution of the nanometer silver solution of concentration 10mg/ml and concentration 1wt% is mixed according to the mass ratio of 1:6, nano-silver thread average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, thus obtaining finely dispersed suspension.No. 2 Mayer rods are used to be coated on glass substrate by this suspension.Subsequently glass substrate is transferred quickly to dry solidification 2 minutes on 90 DEG C of hot plates, prepares nanometer silver transparent conductive film.
Test sample surface resistivity, light transmittance.After deduction glass substrate transmission loss, membrane of conducting layer is 95.2% at the light transmittance of 550 nano wave lengths, and the square resistance that four probe method records is 75 Ω/mouth.
Embodiment 2
The HPMC aqueous solution of the nanometer silver solution of concentration 10mg/ml and concentration 1wt% is mixed according to the mass ratio of 1:6, nano-silver thread average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, thus obtaining finely dispersed suspension.No. 1 Mayer rod is used to be coated on glass substrate by this suspension, glass substrate is transferred quickly on 90 DEG C of hot plates dry solidification 2 minutes, and then use Mayer rod to be coated on the conductive film after dry solidification by this suspension along coating of parallel first time direction, and it is again transferred on 90 DEG C of hot plates dry solidification 2 minutes, prepare nanometer silver transparent conductive film.As in figure 2 it is shown, it is the one-dimension oriented scattergram in the same direction of the conductive material in the present invention.
Test sample surface resistivity, light transmittance.After deduction glass substrate transmission loss, membrane of conducting layer is 95.53% at the light transmittance of 550 nano wave lengths, and the square resistance that four probe method records is 78 Ω/mouth.
Embodiment 3
The HPMC aqueous solution of the nanometer silver solution of concentration 10mg/ml and concentration 1wt% is mixed according to the mass ratio of 1:6, nano-silver thread average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, thus obtaining finely dispersed suspension.No. 1 Mayer rod is used to be coated on glass substrate by this suspension, glass substrate is transferred quickly on 90 DEG C of hot plates dry solidification 2 minutes, and then use Mayer rod to be coated on the conductive film after dry solidification by this suspension along vertical first time coating direction, and it is again transferred on 90 DEG C of hot plates dry solidification 2 minutes, prepare nanometer silver transparent conductive film.As it is shown on figure 3, it is the second vertical crossed orientation scattergram of the conductive material in the present invention.
Test sample surface resistivity, light transmittance.After deduction glass substrate transmission loss, membrane of conducting layer is 96.37% at the light transmittance of 550 nano wave lengths, and the square resistance that four probe method records is 70 Ω/mouth.
Embodiment 4
The HPMC aqueous solution of the nanometer silver solution of concentration 10mg/ml and concentration 1wt% is mixed according to the mass ratio of 1:6, nano-silver thread average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, thus obtaining finely dispersed suspension.No. 0 Mayer rod is used to be coated on glass substrate by this suspension, glass substrate is transferred quickly on 90 DEG C of hot plates dry solidification 2 minutes, and then use Mayer rod to be coated on the conductive film after dry solidification by this suspension along coating of parallel first time direction, and it is again transferred on 90 DEG C of hot plates dry solidification 2 minutes, after again repeating previous step, prepare nanometer silver transparent conductive film.Fig. 2 is the one-dimension oriented scattergram in the same direction of the conductive material in the present invention.
Test sample surface resistivity, light transmittance.After deduction glass substrate transmission loss, membrane of conducting layer is 94.54% at the light transmittance of 550 nano wave lengths, and the square resistance that four probe method records is 90 Ω/mouth.
Embodiment 5
The HPMC aqueous solution of the nanometer silver solution of concentration 10mg/ml and concentration 1wt% is mixed according to the mass ratio of 1:6, nano-silver thread average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, thus obtaining finely dispersed suspension.No. 0 Mayer rod is used to be coated on glass substrate by this suspension, glass substrate is transferred quickly on 90 DEG C of hot plates dry solidification 2 minutes, and then use Mayer rod to be coated on the conductive film after dry solidification by this suspension along vertical last coating direction, and it is again transferred on 90 DEG C of hot plates dry solidification 2 minutes, after again repeating previous step, prepare nanometer silver transparent conductive film.Referring to Fig. 3, it is the second vertical crossed orientation scattergram of the conductive material in the present invention.
Test sample surface resistivity, light transmittance.After deduction glass substrate transmission loss, membrane of conducting layer is 95.07% at the light transmittance of 550 nano wave lengths, and the square resistance that four probe method records is 45 Ω/mouth.
Embodiment 6
The high molecular polymer of orientation is dissolved in organic solvent, and is configured to certain density suspension with nano-silver thread.By the mode of water-laid film, this suspension is coated in substrate surface, prepares conductive layer.The orientating type high molecular polymer used is chain type high molecular polymer, links coumarin or other photosensitive functional group with light sensitive characteristic on side chain with the carbochain section of certain length.High pressure hernia lamp is utilized to obtain the UV polarized light of some strength under photosensitive group sensitive wave length by optical filter and polariser, and by vertical for this UV polarized light directive substrate surface, irradiate certain time length, will there is cross-linking reaction in photosensitive group in UV light polarization direction, form orientation texture.
Embodiment 7
First alignment liquid is coated substrate surface, use hairbrush to carry out friction in a certain direction and make alignment film, alignment film surface can be brushed out, because of the filoplume friction of the friction cloth on orientation roller bearing, the microcosmic order structure arranged in a certain direction, at alignment film surface-coated conductive nano filler, the conductive filler on alignment film can reach directional orientation effect because of intermolecular force.
As the variant embodiment of the present invention, the ordered distribution of the conductive material of the present invention is not limited to parallel distribution or square crossing distribution, it is possible to the two-dimentional crossed orientation for unspecified angle along 0 ° to 90 ° is distributed, as shown in Figure 4.
Below being only the preferred embodiment of the present invention, it is noted that above-mentioned preferred implementation is not construed as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. the manufacture method of the conductive film of an ordered distribution, it is characterised in that comprise the following steps:
Conductive filler is coated on substrate through 1 time or the method that is repeatedly coated with, after dry solidification, forms conductive film；Described painting method is the coating of light orientation orientating type；What be coated with concretely comprises the following steps every time:
(1) the chain type high molecular polymer that chain is connected to photosensitive functional group is dissolved in organic solvent, and is mixedly configured into suspension with conductive filler；
(2) described suspension is coated in substrate surface；
(3) by UV polarized light directive substrate surface, described conductive filler is made to form orientation texture.
2. the manufacture method of the conductive film of ordered distribution as claimed in claim 1, it is characterised in that: every layer of conductive filler distribution differently-oriented directivity is once parallel with front.
3. the manufacture method of the conductive film of ordered distribution as claimed in claim 1, it is characterised in that: every layer of conductive filler distribution differently-oriented directivity with front once at an angle；The scope of this angle is between 0 ° to 90 °.
4. the manufacture method of the conductive film of ordered distribution as claimed in claim 1, it is characterised in that: every layer of conductive filler distribution differently-oriented directivity is once vertical with front.
5. the manufacture method of the conductive film of ordered distribution as claimed in claim 1, it is characterised in that: coating process is hairbrush coating, roller rod coating, silk screen printing, intaglio printing, letterpress or inkjet printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322091.XA CN105788708B (en) | 2013-12-25 | 2013-12-25 | A kind of manufacture method for the conductive film being distributed in order |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728460.1A CN103700430B (en) | 2013-12-25 | 2013-12-25 | A kind of conductive film being distributed in order and its manufacture method |
| CN201610322091.XA CN105788708B (en) | 2013-12-25 | 2013-12-25 | A kind of manufacture method for the conductive film being distributed in order |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310728460.1A Division CN103700430B (en) | 2013-12-25 | 2013-12-25 | A kind of conductive film being distributed in order and its manufacture method |
Publications (2)
| Publication Number | Publication Date |
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| CN105788708A true CN105788708A (en) | 2016-07-20 |
| CN105788708B CN105788708B (en) | 2018-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610322091.XA Active CN105788708B (en) | 2013-12-25 | 2013-12-25 | A kind of manufacture method for the conductive film being distributed in order |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109949973A (en) * | 2019-03-15 | 2019-06-28 | 云谷（固安）科技有限公司 | CNTs/ metal nanometer line composite conductive film and preparation method thereof, electronic device |
| CN111422824A (en) * | 2020-05-07 | 2020-07-17 | 南方科技大学 | Orientation method of anisotropic nano material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001059908A (en) * | 1999-06-15 | 2001-03-06 | Nippon Kayaku Co Ltd | Method for rubbing |
| EP1081546A1 (en) * | 1999-08-30 | 2001-03-07 | Eastman Kodak Company | Coating composition containing electrically-conductive polymer and solvent mixture |
| CN1463444A (en) * | 2001-04-17 | 2003-12-24 | 松下电器产业株式会社 | Conductivity organic film, its mfg. method and electrode and cable using such film |
| CN101353477A (en) * | 2008-09-10 | 2009-01-28 | 中南大学 | Preparation of polyaniline / argentum nano composite material |
-
2013
- 2013-12-25 CN CN201610322091.XA patent/CN105788708B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001059908A (en) * | 1999-06-15 | 2001-03-06 | Nippon Kayaku Co Ltd | Method for rubbing |
| EP1081546A1 (en) * | 1999-08-30 | 2001-03-07 | Eastman Kodak Company | Coating composition containing electrically-conductive polymer and solvent mixture |
| CN1463444A (en) * | 2001-04-17 | 2003-12-24 | 松下电器产业株式会社 | Conductivity organic film, its mfg. method and electrode and cable using such film |
| CN101353477A (en) * | 2008-09-10 | 2009-01-28 | 中南大学 | Preparation of polyaniline / argentum nano composite material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109949973A (en) * | 2019-03-15 | 2019-06-28 | 云谷（固安）科技有限公司 | CNTs/ metal nanometer line composite conductive film and preparation method thereof, electronic device |
| CN111422824A (en) * | 2020-05-07 | 2020-07-17 | 南方科技大学 | Orientation method of anisotropic nano material |
| CN111422824B (en) * | 2020-05-07 | 2023-09-26 | 南方科技大学 | Orientation method of anisotropic nano material |
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| Publication number | Publication date |
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| CN105788708B (en) | 2018-05-15 |
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