CN103700430B - A kind of conductive film being distributed in order and its manufacture method - Google Patents
A kind of conductive film being distributed in order and its manufacture method Download PDFInfo
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- CN103700430B CN103700430B CN201310728460.1A CN201310728460A CN103700430B CN 103700430 B CN103700430 B CN 103700430B CN 201310728460 A CN201310728460 A CN 201310728460A CN 103700430 B CN103700430 B CN 103700430B
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Abstract
A kind of conductive film being distributed in order, including substrate and the conductive layer that is arranged on substrate；The conductive layer is distributed in order by conductive filler to be formed.Using this technique, the network structure being distributed in order is formed using only a small amount of linear conductance filler, it is possible to make high transmission rate, the transparent conductive film of low sheet resistance.The light transmittance of membrane of conducting layer can reach more than 95%, below its square resistance as little as 45 Ω/mouth, can realize excellent translucency and electric conductivity simultaneously.
Description
Technical field
The invention belongs to a kind of conductive film, specifically a kind of conductive film being distributed in order.
Background technology
While transparent conductive film is referred to superior electrical conductivity energy, there is higher light transmittance in visible light wave range
Film.It is commonly applied to contact panel, the transparency electrode of solar film battery, flat-panel monitor can electroluminescence device etc..And with
Various devices towards lightening, flexibleization to develop, flexible transparent conductive film is frivolous etc. excellent due to flexible
Put and obtain the extensive concern of all circles.
Transparent conductive film is made at present conductive coating structure is typically done using metal-oxide film, be using most
ITO is indium zinc metal oxide, shows to form one in transparent glass or plastic supporting base by the way that the method either sputtered is deposited
The conductive indium-zinc oxide film of layer.But whole coating process needs to carry out under condition of high vacuum degree, and coating temperature and
After annealing will be carried out at high temperature, very high to equipment requirement.And metal oxide is by extraneous stress effect or curved
Qu Shi, it is easy to be damaged, limit its development in flexible device field.
The conductive material for being currently used for making transparent conductive film mainly has：Metal nanometer line, metal nanoparticle, conduction
High molecular polymer, graphene, CNT etc..The transparent conductive film wherein made using linear conductance filler has excellent
Electric conductivity and light transmittance, by repeatedly bending after be maintained to relatively low sheet resistance value.Therefore it is most latent
Power substitutes ITO and is used to make transparent conductive film.
In traditional transparent conductive film, linear conductance filler forms network structure to realize electric conductivity by random distribution
Can, therefore conductive layer needs and reaches a certain amount of linear conductance filler to ensure that it has relatively low sheet resistance.But line
Property conductive filler content increase, film light transmittance can be caused to decline, mist degree improves, influence application value.Therefore one kind is needed
New is made technique, and the network structure being distributed in order is formed using only a small amount of linear conductance filler, makes high transmission rate, low table
The transparent conductive film of surface resistance.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of high transmission rate, the conduction of low sheet resistance
Film.
In order to achieve the above object, the present invention uses following technical scheme：A kind of conductive film being distributed in order, including base
Plate and the conductive layer being arranged on substrate；The conductive layer is distributed in order by conductive filler to be formed.Compared to prior art, this hair
A kind of bright conductive film being distributed in order, its conductive layer are to be distributed to be formed in order by conductive filler, are divided in order so as to be formed
The structure of cloth.Using this technique, the network structure being distributed in order is formed using only a small amount of linear conductance filler, it is possible to make
Make high transmission rate, the transparent conductive film of low sheet resistance.The light transmittance of membrane of conducting layer can reach more than 95%, its square
Below resistance value as little as 45 Ω/mouth, excellent translucency and electric conductivity can be realized simultaneously.
Further, the conductive filler is distributed as one-dimension oriented distribution in the same direction in order.
Further, the conductive filler is distributed as the two-dimentional crossed orientation distribution along 0 ° to 90 ° in order.
Further, the conductive filler is distributed as the distribution of second vertical crossed orientation in order.
Further, described conductive filler be metal nanometer line, it is CNT, metal nanoparticle, graphene, conductive poly-
Compound or oxidized metal.
Another technical scheme of the present invention is as follows：A kind of conductive film being distributed in order, including substrate is with being arranged on base
Conductive layer on plate, in addition to one be used for be orientated orientation film layer；The conductive layer is by conductive filler coated in shape on alignment film
Into to form the structure being distributed in order.Orientation film layer has the function that to arrange conductive filler in optical anisotropic layer.
Further, the conductive filler is distributed as one-dimension oriented distribution in the same direction in order.
Further, the conductive filler is distributed as the two-dimentional crossed orientation distribution along 0 ° to 90 ° in order.
Further, the conductive layer is arranged on the top of the alignment film either bottom or be integral with alignment film.
It is another object of the present invention to provide a kind of preparation technology simple and fast, can produce highly conductive, high
The manufacture method of light rate film.
In order to achieve the above object, the present invention uses following technical scheme：The coating by 1 time or repeatedly by conductive ink
Method coated on substrate, conductive film is formed after dry solidification；The painting method is coated with for orientating type.
Further, every layer of conductive filler distribution differently- oriented directivity with it is preceding once parallel.
Further, every layer of conductive filler be distributed to direction with it is preceding once at an angle；The scope of the angle is at 0 ° to 90 °
Between.
Further, every layer of conductive filler distribution differently- oriented directivity with it is preceding once vertical.
Further, the mode for realizing orientation is mechanics orientation, light orientation orientation or chemistry are orientated.
Further, coating method is that hairbrush coating, roller rod coating, silk-screen printing, intaglio printing, letterpress or ink-jet are beaten
Print.
Brief description of the drawings
Fig. 1 is conductive material distribution map of the prior art
Fig. 2 is the one-dimension oriented distribution map of conductive material in the same direction in the present invention
Fig. 3 is the second vertical crossed orientation distribution map of the conductive material in the present invention
Fig. 4 is two-dimentional crossed orientation distribution map of the conductive material along different directions in the present invention
Referring to drawings and the specific embodiments, the invention will be further described.
Embodiment
Embodiment 1
By concentration 10mg/ml Nano silver solution and concentration 1wt% the HPMC aqueous solution according to 1:6 mass ratio mixing, receives
Rice silver wire average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, so as to be divided
Dissipate uniform suspension.The suspension is coated on glass substrate using No. 2 Mayer rods.Then glass substrate is turned rapidly
Dry solidification 2 minutes on 90 DEG C of hot plates are moved to, Nano Silver transparent conductive film is made.
Test sample surface resistivity, light transmittance.After glass substrate transmission loss is deducted, membrane of conducting layer is 550
The light transmittance of nano wave length is 95.2%, and the square resistance that four probe method measures is 75 Ω/mouth.
Embodiment 2
By concentration 10mg/ml Nano silver solution and concentration 1wt% the HPMC aqueous solution according to 1:6 mass ratio mixing, receives
Rice silver wire average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, so as to be divided
Dissipate uniform suspension.The suspension is coated on glass substrate using No. 1 Mayer rod, glass substrate is transferred quickly to
Dry solidification 2 minutes on 90 DEG C of hot plates, then reuse Mayer rods and coat the suspension along coating of parallel first time direction
Onto the conductive film after dry solidification, and dry solidification 2 minutes on 90 DEG C of hot plates are again transferred to, it is saturating that Nano Silver is made
Bright conductive film.As shown in Fig. 2 it is the one-dimension oriented distribution map of conductive material in the same direction in the present invention.
Test sample surface resistivity, light transmittance.After glass substrate transmission loss is deducted, membrane of conducting layer is 550
The light transmittance of nano wave length is 95.53%, and the square resistance that four probe method measures is 78 Ω/mouth.
Embodiment 3
By concentration 10mg/ml Nano silver solution and concentration 1wt% the HPMC aqueous solution according to 1:6 mass ratio mixing, receives
Rice silver wire average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, so as to be divided
Dissipate uniform suspension.The suspension is coated on glass substrate using No. 1 Mayer rod, glass substrate is transferred quickly to
Dry solidification 2 minutes on 90 DEG C of hot plates, then reuse Mayer rods and coat the suspension along the vertical direction that coats for the first time
Onto the conductive film after dry solidification, and dry solidification 2 minutes on 90 DEG C of hot plates are again transferred to, it is saturating that Nano Silver is made
Bright conductive film.As shown in figure 3, it is the second vertical crossed orientation distribution map of the conductive material in the present invention.
Test sample surface resistivity, light transmittance.After glass substrate transmission loss is deducted, membrane of conducting layer is 550
The light transmittance of nano wave length is 96.37%, and the square resistance that four probe method measures is 70 Ω/mouth.
Embodiment 4
By concentration 10mg/ml Nano silver solution and concentration 1wt% the HPMC aqueous solution according to 1:6 mass ratio mixing, receives
Rice silver wire average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, so as to be divided
Dissipate uniform suspension.The suspension is coated on glass substrate using No. 0 Mayer rod, glass substrate is transferred quickly to
Dry solidification 2 minutes on 90 DEG C of hot plates, then reuse Mayer rods and coat the suspension along coating of parallel first time direction
Onto the conductive film after dry solidification, and dry solidification 2 minutes on 90 DEG C of hot plates are again transferred to, repeat one again
After step, Nano Silver transparent conductive film is made.Fig. 2 is the one-dimension oriented distribution of conductive material in the same direction in the present invention
Figure.
Test sample surface resistivity, light transmittance.After glass substrate transmission loss is deducted, membrane of conducting layer is 550
The light transmittance of nano wave length is 94.54%, and the square resistance that four probe method measures is 90 Ω/mouth.
Embodiment 5
By concentration 10mg/ml Nano silver solution and concentration 1wt% the HPMC aqueous solution according to 1:6 mass ratio mixing, receives
Rice silver wire average diameter 35nm, length 10um.The suspension of gained is mixed 10 minutes on eddy blending machine, so as to be divided
Dissipate uniform suspension.The suspension is coated on glass substrate using No. 0 Mayer rod, glass substrate is transferred quickly to
Dry solidification 2 minutes on 90 DEG C of hot plates, then reuse Mayer rods and coat the suspension along the vertical last direction that coats
Onto the conductive film after dry solidification, and dry solidification 2 minutes on 90 DEG C of hot plates are again transferred to, repeat one again
After step, Nano Silver transparent conductive film is made.Referring to Fig. 3, the second vertical that it is the conductive material in the present invention intersects
Distribution of orientations figure.
Test sample surface resistivity, light transmittance.After glass substrate transmission loss is deducted, membrane of conducting layer is 550
The light transmittance of nano wave length is 95.07%, and the square resistance that four probe method measures is 45 Ω/mouth.
Embodiment 6
The high molecular polymer of orientation is dissolved in organic solvent, and certain density suspension is configured to nano-silver thread
Liquid.The suspension is coated in substrate surface by way of water-laid film, prepares conductive layer.The orientating type polyphosphazene polymer used
Compound is chain type high molecular polymer, on side chain with cumarin of the carbochain section of the certain length link with light sensitive characteristic or
Other photosensitive functional groups.Some strength under photosensitive group sensitive wave length is obtained by optical filter and polarizer using high pressure hernia lamp
UV polarised lights, and by the vertical directive substrate surface of the UV polarised lights, certain time length is irradiated, photosensitive group will be in UV light polarization directions
On crosslink reaction, form orientation texture.
Embodiment 7
Alignment liquid is coated on substrate surface first, friction is carried out in a certain direction using hairbrush and alignment film, orientation is made
Film surface can be brushed out the microcosmic order structure arranged in a certain direction because of the filoplume friction of the friction cloth on orientation roller bearing,
Conductive filler on alignment film surface coated with nano conductive filler, alignment film can reach directional orientation because of intermolecular force
Effect.
As the variant embodiment of the present invention, the orderly distribution of conductive material of the invention is not limited to parallel distribution or vertical
Cross-distribution, can be the two-dimentional crossed orientation distribution of the unspecified angle along 0 ° to 90 °, as shown in Figure 4.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (3)
1. a kind of conductive film being distributed in order, including substrate and the conductive layer that is arranged on substrate, it is characterised in that：Also include
One for being orientated by alignment liquid coated in the orientation film layer formed on substrate；The orientation film layer is provided with to alignment liquid along one
Determine direction to rub the ordered structure to be formed；The conductive layer is coated in orientation film layer by conductive filler and formed, orderly to be formed
The structure of distribution.
A kind of 2. conductive film being distributed in order as claimed in claim 1, it is characterised in that：The conductive filler is distributed in order
For one-dimension oriented distribution in the same direction.
A kind of 3. conductive film being distributed in order as claimed in claim 1, it is characterised in that：The conductive filler is distributed in order
For the two-dimentional crossed orientation distribution of the unspecified angle along 0 ° to 90 °.
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| 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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| CN201310728460.1A CN103700430B (en) | 2013-12-25 | 2013-12-25 | A kind of conductive film being distributed in order and its manufacture method |
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| CN201610322091.XA Division 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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| CN103700430B true CN103700430B (en) | 2017-12-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103854723B (en) * | 2014-02-20 | 2017-04-12 | 中山大学 | Device with orderly-conductive film |
| WO2015124027A1 (en) * | 2014-02-20 | 2015-08-27 | 中山大学 | Orderly distributed conductive thin film, and device and nanometer conductor structure thereof |
| CN104051075A (en) * | 2014-05-14 | 2014-09-17 | 中国科学院合肥物质科学研究院 | Method for preparing transparent conductive film on plane provided with step |
| CN104575658A (en) * | 2014-12-24 | 2015-04-29 | 中山大学 | Magnetic field and application of magnetic nanowires in transparent conductive film as well as transparent conductive film and preparation method |
| CN105261423B (en) * | 2015-10-30 | 2017-08-29 | 中山大学 | A kind of volume to volume prepares the equipment and method of high-performance flexible nesa coating |
| CN105957967A (en) * | 2016-06-14 | 2016-09-21 | 国家纳米科学中心 | Preparation method of large-area flexible transparent conductive substrate |
| CN106057359B (en) * | 2016-07-19 | 2018-08-10 | 中山大学 | A kind of preparation method of embedded more orientation metal nano wire transparent conductive films |
| CN108845705B (en) * | 2018-06-30 | 2021-05-07 | 广州国显科技有限公司 | Conductive laminated structure, manufacturing method thereof and display device |
| CN109346211B (en) * | 2018-08-29 | 2020-12-11 | 汉思高电子科技（义乌）有限公司 | Composite structure transparent conductive film |
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| CN202177751U (en) * | 2011-08-19 | 2012-03-28 | 天马微电子股份有限公司 | Liquid crystal light valve glasses and stereoscopic display system |
| CN102938262A (en) * | 2012-11-20 | 2013-02-20 | 上海交通大学 | Transparent conducting thin film and preparation method thereof |
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| CN101625468B (en) * | 2008-07-09 | 2011-03-23 | 鸿富锦精密工业（深圳）有限公司 | Touch liquid crystal display preparation method |
| CN101492151A (en) * | 2009-02-17 | 2009-07-29 | 华中科技大学 | High-conductivity transparent metal single-wall nano-carbon tube film and method of producing the same |
| CN101901069B (en) * | 2009-05-26 | 2012-07-25 | 群康科技(深圳)有限公司 | Multipoint touch screen and driving method thereof |
| CN103011070B (en) * | 2012-12-18 | 2014-04-16 | 中国科学技术大学 | Orderly heterogeneous nano-wire flexible conductive film and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202177751U (en) * | 2011-08-19 | 2012-03-28 | 天马微电子股份有限公司 | Liquid crystal light valve glasses and stereoscopic display system |
| CN102938262A (en) * | 2012-11-20 | 2013-02-20 | 上海交通大学 | Transparent conducting thin film and preparation method thereof |
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