CN110504068A - A kind of high conductivity and the transparent silver nanowires electrode preparation method having good stability - Google Patents
A kind of high conductivity and the transparent silver nanowires electrode preparation method having good stability Download PDFInfo
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Abstract
The present invention relates to a kind of high conductivity and the transparent silver nanowires electrode preparation methods having good stability, it is characterised in that specific step is as follows: (1) providing hydroxylated substrate, connect octadecyl trichlorosilane alkane on surface later；(2) spin coating dimethyl silicone polymer (PDMS) on the substrate obtained in step (1)；(3) silver nanowires is sprayed on substrate obtained in step (2), silver nanowires to be sprayed forms fine and close film, becomes silver nanowires electrode；(4) with silver nanowires electrode in micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment step (3)；(5) transparent silver nanowires electrode is obtained after removing silver nanowires electrode obtained by step (4) on the substrate described in step (1).It is simple with operating process, favorable repeatability, the advantages that not generating suitable for a variety of rigid substrates and flexible substrate and waste of material and pollute.
Description
Technical field
The present invention relates to a kind of electrodes and preparation method thereof, and in particular to a kind of high conductivity and has good stability transparent
Silver nanowires electrode preparation method belongs to electrode preparation field.
Background technique
With the development of electronic technology, more and more electronic devices develop towards flexibility, such as wearable smart machine,
Electronic skin, flexible electronic curtain, stretchable solar battery etc..Flexible conducting material be in flexible electronic devices not
The component part that can lack, the research and development of high-performance flexible conductive material have the development of flexible electronic devices important
Meaning.Currently, there are many multiplicity for flexible conducting material, and such as: metal nanometer line, conducting polymer, graphene, carbon nanotube
Deng.In numerous flexible conducting materials, silver nanowires has many advantages, such as high conductivity, high transmittance, in flexible electronic devices
Have broad application prospects in preparation.But usual silver nanowires surface has organic coating layer, this causes it in film forming procedure
High resistant phenomenon is formed in place of overlap joint, and then causes silver nanowires electrode sheet resistance higher.Therefore have simultaneously in order to obtain high saturating
The silver nanowires electrode for crossing rate and high conductivity needs to be further processed silver nanowires electrode.
Have several seminars to report the mode for reducing silver nanowires electrode sheet resistance at present: Lee seminar, South Korea is using high
Warm heating (220 DEG C), can be effectively reduced silver nanowires electrode sheet resistance, make electrode sheet resistance from > 1 k Ω/sq be down to 100 Ω/
sq.However organic coating layer of this mode meeting whole removing in addition to silver nanowires, make silver nanowires exposure in air, leads to silver
Nano line electrode oxidation increases its sheet resistance, while also can common elastic substrates be caused with certain thermal damage, influences electrode
Tensility can (Advanced materials 2012, 24；3326-3332).Garnett seminar, which uses, to be had from limit
The irradiated heat method of effect processed, after node is welded together, fuel factor can weaken to disappearance, this is avoided that excessive temperature rise causes
Silver nanowires fusing, but the equipment price for radiating nanometer melting welding is expensive, limits silver nanowires electrode because cost is excessively high in the future
Mass production (Nature materials 2012, 11；24).Gaynor seminar is prepared using medium method is introduced
Silver nanowires electrode with preferable profile pattern and buckle resistance, but transmitance only has 83%(Advanced materials 2011, 23；2905-2910).Accordingly, it is desirable to provide a kind of silver nanowires electrode for being provided simultaneously with high conductivity, high transmittance
Preparation method.
Summary of the invention
The object of the present invention is to provide a kind of high conductivity and the transparent silver nanowires electrode preparation sides having good stability
Method, is that a kind of neither damage silver nanowires electrode transmitance can guarantee silver nanowires electrode property stable in the air again, and
The processing method of the silver nanowires electrode of silver nanowires electrode sheet resistance can efficiently be reduced；Mainly added using micro-wave oven TRANSIENT HIGH TEMPERATURE
It is heat-treated transparent silver nanowires electrode, the contact point of silver nanowires electrode can be made to realize effectively welding and not large-scale damage silver
The outer organic coating layer of nano wire ensure that silver nanowires electrode is aerial while reducing silver nanowires electrode sheet resistance
Stability；Simple with operating process, favorable repeatability does not generate suitable for a variety of rigid substrates and flexible substrate and material wave
The advantages that taking and polluting.
The technical scheme of the present invention is realized as follows: a kind of high conductivity and the transparent silver nanowires having good stability electricity
Pole preparation method, it is characterised in that specific step is as follows:
(1) hydroxylated substrate is provided, connects octadecyl trichlorosilane alkane on surface later；
(2) spin coating dimethyl silicone polymer (PDMS) on the substrate obtained in step (1)；
(3) silver nanowires is sprayed on substrate obtained in step (2), silver nanowires to be sprayed forms fine and close film, i.e.,
As silver nanowires electrode；
(4) with silver nanowires electrode in micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment step (3)；
(5) transparent silver nanowires is obtained after removing silver nanowires electrode obtained by step (4) on the substrate described in step (1)
Electrode.
In the step (1), substrate is the flexible liners such as rigid substrates and polyethylene terephthalate (PET) such as glass
Bottom.
The hydroxylated glass substrate processing step is as follows:
To the glass substrate oxygen plasma treatment, hydroxyl can be formed on surface.The condition of oxygen plasma treatment is as follows:
The processing time is 0.5 ~ 1 min；Power is 20 ~ 40 W；Processing atmosphere is oxygen atmosphere；Vacuum degree is 30 ~ 40 Pa；Oxygen stream
Speed is 5 ~ 10 sccm.
The step of connection octadecyl trichlorosilane alkane, is as follows:
Hydroxylated glass substrate is placed in the mixing of normal heptane and octadecyl trichlorosilane alkane composition that volume ratio is 1000:1
0.5 ~ l h is impregnated in liquid, can connect the octadecyl trichlorosilane alkane.
In the step (2), the step of spin coating dimethyl silicone polymer (PDMS), is as follows:
By dimethyl silicone polymer and curing agent, 10:1 is uniformly mixed by volume, obtains polydimethylsiloxanes after standing 30 min
Dimethyl silicone polymer substrate can be obtained by substrate obtained in its spin coating in step (1) in alkane after solidification；Wherein revolve
The revolving speed of painting is 3000 ~ 5000 r/s, and spin-coating time is 10 ~ 20 s；Cured temperature is 70 ~ 100 DEG C, and curing time is 1 ~ 2
h。
In the step (3), spray silver nanowires the step of it is as follows:
Gained substrate in step (2) is placed on the baking platform that temperature is 150 DEG C, using silver nanowires described in spray gun spraying, silver
Nano wire concentration is 1 mg/ml, to form fine and close silver nanowires conductive film, gained substrate spacing in spray gun and step (2)
It is 30 ~ 60 layers from the silver nanowires electrode for 10 ~ 20 cm, is sprayed.
In the step (4), micro-wave oven TRANSIENT HIGH TEMPERATURE heat Processing Ag nano line electrode the step of it is as follows:
4-1) the micro-wave oven model G8023CTL-K3；
4-2) add 220 V operating voltages to micro-wave oven, gained silver nanowires electrode in step (2) is put into wherein, to being put into it
In silver nanowires electrode TRANSIENT HIGH TEMPERATURE heat the different time, the time be 1 ~ 3 s；
Be 4-3) 1 s to the micro-wave oven setting working time, by gained silver nanowires electrode in step (2) be put into wherein, with
Different operating voltages heats to silver nanowires electrode TRANSIENT HIGH TEMPERATURE therein is put into, and operating voltage is the V of 180 V ~ 220.
In the step (5), remove device the step of it is as follows:
The dimethyl silicone polymer of device edge is scratched with very thin blade, then with tweezers along one side picking up slowly,
Transparent silver nanowires electrode can be obtained.
Invention further provides a kind of transparent silver nanoparticles being prepared by preparation method described in any of the above embodiments
Line electrode.
The positive effect of the present invention:
(1) low in cost, easy to operate, favorable repeatability is high-efficient, the time required to silver nanowires electrode sheet resistance is effectively reduced
It is short；
(2) it can be realized effective welding at silver nanowires electrode connection points, silver nanowires electrode sheet resistance be effectively reduced；
(3) transmitance of silver nanowires electrode can not be damaged；
(4) a variety of common rigid substrates and flexible substrate can be suitble to；
(5) while realizing effective welding at silver nanowires electrode connection points, will not have outside large-scale damage silver nanowires
Machine clad, it is ensured that the aerial stability of silver nanowires electrode；
(6) waste and pollution of material will not be generated during TRANSIENT HIGH TEMPERATURE heats silver nanowires electrode；
(7) flexural property of silver nanowires electrode can be improved.
Detailed description of the invention
Fig. 1 is the schematic diagram that transparent silver nanowires electrode is prepared in embodiment 1.
Fig. 2 is that transparent silver nanowires electrode H103 resin figure and silver nanowires electrode photo is prepared in embodiment 1.
Fig. 3 is that the silver nanowires electrode being prepared in embodiment 1 scans electricity before micro-wave oven TRANSIENT HIGH TEMPERATURE heats
Mirror figure (Fig. 3 (a)) and silver nanowires electrode the micro-wave oven TRANSIENT HIGH TEMPERATURE under 220 V voltages handle scanning electron microscope (SEM) photograph (Fig. 3 after 1 s
(b)).
Fig. 4 is that the silver nanowires electrode being prepared in embodiment 1 heats preceding atom in micro-wave oven TRANSIENT HIGH TEMPERATURE
The atomic force that force microscope figure (Fig. 4 (a)) and silver nanowires electrode the micro-wave oven TRANSIENT HIGH TEMPERATURE under 220 V voltages handle 1 s is aobvious
Micro mirror figure (Fig. 4 (b)).
Fig. 5 is that the silver nanowires electrode that embodiment 1 is prepared is heated by micro-wave oven TRANSIENT HIGH TEMPERATURE under 220 V voltages
The change rate (Fig. 5 (b)) of the variation (Fig. 5 (a)) of sheet resistance and sheet resistance after 1 ~ 3 s；The silver nanowires electrode that embodiment 2 is prepared
Under the V voltage of 180 V ~ 220 micro-wave oven TRANSIENT HIGH TEMPERATURE heat 1 s after sheet resistance variation (Fig. 5 (c)) and sheet resistance variation
Rate (Fig. 5 (d)).
Fig. 6 is that the silver nanowires electrode of various substrates that is prepared in embodiment 3 micro-wave oven under 220 V voltages is instantaneous
The silver nanowires for the various substrates being prepared in the variation (Fig. 6 (a)) and embodiment 3 of sheet resistance before and after 1 s of high-temperature heating treatment
Micro-wave oven TRANSIENT HIGH TEMPERATURE heats the change rate (Fig. 6 (b)) of sheet resistance before and after 1 s under 220 V voltage of electrode.
Fig. 7 is to obtain silver nanowires electrode micro-wave oven TRANSIENT HIGH TEMPERATURE under 220 V voltages in embodiment 1 to heat 1 s
The variation diagram of one week silver nanowires electrode sheet resistance is placed afterwards.
Fig. 8 is silver nanowires electrode micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment under 220 V voltages that embodiment 1 is prepared
Before and after 1 s, the change rate comparison of sheet resistance in the case where being bent different curvature radius.
Fig. 9 is silver nanowires electrode micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment under 220 V voltages that embodiment 1 is prepared
Before and after 1 s, in the case where radius of curvature is 8 mm, the change rate of 1000 lower sheet resistances of bend cycles compares (Fig. 9 (a)) and restores sheet resistance
Change rate compares (Fig. 9 (b)).
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples:
Experimental method used in following embodiments is conventional method unless otherwise specified.
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1 prepares transparent silver nanowires electrode
Transparent silver nanowires electrode is prepared in accordance with the following steps:
(1) hydroxylating processing is carried out to glass substrate surface, the specific steps are as follows:
Glass substrate surface is cleaned up first;Then oxygen is carried out to the glass substrate after cleaning using oxygen plasma machine
Corona treatment, (power: 30 W, time: 1 min) can form hydroxyl in glass substrate surface.Hydroxylating is handled
Substrate be placed in volume ratio be 1000:1 normal heptane and octadecyl three filter silane in impregnate 0.5 h, can connect on surface
Connect octadecyl trichlorosilane alkane.
(2) in step (1) gained substrate surface spin coating dimethyl silicone polymer (PDMS), the specific steps are as follows:
By dimethyl silicone polymer and curing agent, 10:1 is uniformly mixed by volume, obtains the poly dimethyl after standing 30 min
Siloxanes, by (revolving speed is 3000 r/s, and spin-coating time s), solidifies 2 for 10 on substrate obtained in its spin coating in step (1)
Dimethyl silicone polymer substrate can be obtained after h.
(3) gained substrate surface sprays silver nanowires in step (2), the specific steps are as follows:
Gained substrate in step (2) is placed on the baking platform that temperature is 150 DEG C, is using spray gun at 10 cm right above substrate
45 layers of silver nanowires are sprayed, silver nanowires concentration used is 1 mg/ml.
(4) with gained silver nanowires electrode in model G8023CTL-K3 micro-wave oven processing step (3), specific steps are such as
Under:
Gained silver nanowires electrode in step (3) is put into the micro-wave oven of model G8023CTL-K3, to micro-wave oven plus 220
V operating voltage heats the different time to silver nanowires electrode TRANSIENT HIGH TEMPERATURE therein is put into, and the time is 1 ~ 3 s.
(5) in step (5), the step of removing transparent silver nanowires electrode, is as follows:
The dimethyl silicone polymer of device edge is scratched with very thin blade, then with tweezers along one side picking up slowly,
Transparent silver nanowires electrode can be obtained.
The method of micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment silver nanowires electrode provided by the invention, it is ensured that silver nanowires
The outstanding optical transmission of electrode.Fig. 2 is the H103 resin figure of silver nanowires electrode on dimethyl silicone polymer substrate, can be seen
Silver nanowires electrode transmitance is 96% out.
The method of micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment silver nanowires electrode provided by the invention, compared to the side of acid processing
Method will not generate the waste and pollution of material.
The method of micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment silver nanowires electrode provided by the invention, may be implemented silver nanowires
Effective welding at electrode connection points.Fig. 3 (a) (b) is that silver nanowires electrode is swept before and after the heat treatment of micro-wave oven TRANSIENT HIGH TEMPERATURE
Retouch microscopic comparison.Fig. 4 (a) (b) is silver nanowires electrode atomic force microscope before and after the heat treatment of micro-wave oven TRANSIENT HIGH TEMPERATURE
Comparison diagram.It can be seen that the lap-joint of silver nanowires electrode is effectively welded after the processing of micro-wave oven TRANSIENT HIGH TEMPERATURE, junction becomes
It obtains smooth.
The method of micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment silver nanowires electrode provided by the invention, may be implemented silver nanowires
Effective welding at electrode connection points, is effectively reduced the sheet resistance of silver nanowires electrode.Fig. 5 (a) is silver nanowires electrode by 220 V
Micro-wave oven TRANSIENT HIGH TEMPERATURE heats the variation diagram of sheet resistance before and after 1 ~ 3 s under voltage.Fig. 5 (b) is silver nanowires electrode by 220 V
Micro-wave oven TRANSIENT HIGH TEMPERATURE heats the change rate figure of sheet resistance before and after 1 ~ 3 s under voltage.It can be seen that micro-wave oven under 220 V voltages
After TRANSIENT HIGH TEMPERATURE heat treatment, silver nanowires electrode sheet resistance can drop to 11.845 Ω from 51.5 Ω, reduce 77%.
Micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment silver nanowires electrode method provided by the invention is realizing silver nanowires electrode
It, will not the outer organic coating layer of large-scale damage silver nanowires while effective welding at tie point, it is ensured that silver nanowires
The aerial stability of electrode.Fig. 7 is that silver nanowires electrode micro-wave oven TRANSIENT HIGH TEMPERATURE under 220 V voltages heats 1 s
The variation diagram of one week silver nanowires electrode sheet resistance is placed afterwards.It can be seen that silver nanowires electrode is at micro-wave oven TRANSIENT HIGH TEMPERATURE heating
After reason, sheet resistance variation is unobvious in one week, more stable.
Micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment silver nanowires electrode method provided by the invention can improve silver nanowires electricity
The flexural property of pole.Fig. 8 is under 220 V voltages before and after 1 s of micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment, under different curvature radius
The change rate comparison diagram of sheet resistance.Fig. 9 (a) is curvature half under 220 V voltages before and after 1 s of micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment
Diameter is the change rate comparison diagram of 1000 lower sheet resistances of bend cycles under 8 mm.Fig. 9 (b) is silver nanowires electrode in 220 V voltages
Before and after lower micro-wave oven TRANSIENT HIGH TEMPERATURE heats 1 s, the recovery of 1000 lower sheet resistances of bend cycles in the case where radius of curvature is 8 mm
Change rate comparison diagram.It can be seen that silver nanowires electrode under 220 V voltages micro-wave oven TRANSIENT HIGH TEMPERATURE heat 1 s after, no
It is substantially reduced with sheet resistance variation when being bent under radius of curvature, and 1000 power resistiveizations of circulation are also more stable, restores sheet resistance and become
Rate is significantly reduced.
Embodiment 2 prepares transparent silver nanowires electrode
Transparent silver nanowires electrode is prepared in accordance with the following steps:
(1) hydroxylating processing is carried out to glass substrate surface, the specific steps are as follows:
Glass substrate surface is cleaned up first;Then oxygen is carried out to the glass substrate after cleaning using oxygen plasma machine
Corona treatment, (power: 30 W, time: 1 min) can form hydroxyl in glass substrate surface.Hydroxylating is handled
Substrate be placed in volume ratio be 1000:1 normal heptane and octadecyl three filter silane in impregnate 0.5 h, can connect on surface
Connect octadecyl trichlorosilane alkane.
(2) in step (1) gained substrate surface spin coating dimethyl silicone polymer (PDMS), the specific steps are as follows:
By dimethyl silicone polymer and curing agent, 10:1 is uniformly mixed by volume, obtains the poly dimethyl after standing 30 min
Siloxanes, by (revolving speed is 3000 r/s, and spin-coating time s), solidifies 2 for 10 on substrate obtained in its spin coating in step (1)
Dimethyl silicone polymer substrate can be obtained after h.
(3) gained substrate surface sprays silver nanowires in step (2), the specific steps are as follows:
Gained substrate in step (2) is placed on the baking platform that temperature is 150 DEG C, is using spray gun at 10 cm right above substrate
45 layers of silver nanowires are sprayed, silver nanowires concentration used is 1 mg/ml.
(4) with gained silver nanowires electrode in model G8023CTL-K3 micro-wave oven processing step (3), specific steps are such as
Under:
Gained silver nanowires electrode in step (3) is put into the micro-wave oven of model G8023CTL-K3, setting micro-wave oven works
Time is 1 s, is heated with different operating voltages to silver nanowires electrode TRANSIENT HIGH TEMPERATURE therein is put into, operating voltage is
180 V~220 V。
(5) in step (5), the step of removing transparent silver nanowires electrode, is as follows:
The dimethyl silicone polymer of device edge is scratched with very thin blade, then with tweezers along one side picking up slowly,
Transparent silver nanowires electrode can be obtained.
The method of micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment silver nanowires electrode provided by the invention, may be implemented silver nanowires
Effective welding at electrode connection points, is effectively reduced the sheet resistance of silver nanowires electrode.And compared to traditional entirety heat treatment
Method, the sheet resistance of silver nanowires electrode can be effectively reduced in method provided by the invention in a short time.Fig. 5 (c) is silver nanoparticle
Line electrode micro-wave oven TRANSIENT HIGH TEMPERATURE under the V voltage of 180 V ~ 220 heats the variation diagram of sheet resistance after 1 s.Fig. 5 (d) is Yin Na
Rice noodles electrode micro-wave oven TRANSIENT HIGH TEMPERATURE under the V voltage of 180 V ~ 220 heats the change rate figure of sheet resistance after 1 s.It can be seen that
Micro-wave oven TRANSIENT HIGH TEMPERATURE heats silver nanowires electrode, and silver nanowires electrode sheet resistance can be effectively reduced.
Embodiment 3, the silver nanowires electrode for preparing various substrates
The silver nanowires electrode of various substrates is prepared in accordance with the following steps:
(1) hydroxylating processing is carried out to glass and polyethylene terephthalate (PET) substrate surface, the specific steps are as follows:
Glass and polyethylene terephthalate (PET) substrate surface are cleaned up first;Then oxygen plasma machine is used
Oxygen plasma treatment is carried out to the substrate after cleaning, (power: 30 W, time: 1 min) can form hydroxyl in substrate surface
Base.The substrate of hydroxylating processing is placed in the normal heptane and the filter silane of octadecyl three that volume ratio is 1000:1 and impregnates 0.5
H can connect octadecyl trichlorosilane alkane on surface.
(2) resulting glass substrate surface spin coating dimethyl silicone polymer (PDMS) in step (1), specific steps are such as
Under:
By dimethyl silicone polymer and curing agent, 10:1 is uniformly mixed by volume, obtains the poly dimethyl after standing 30 min
Siloxanes, by (revolving speed is 3000 r/s, and spin-coating time s), solidifies 2 for 10 on substrate obtained in its spin coating in step (1)
Dimethyl silicone polymer substrate can be obtained after h.
(3) the obtained glass in step (1) and (2), polyethylene terephthalate (PET) and poly dimethyl silicon
Oxygen alkane substrate surface sprays silver nanowires, the specific steps are as follows:
Gained substrate in step (1) and (2) is placed on the baking platform that temperature is 150 DEG C, right above substrate at 10 cm
With 45 layers of silver nanowires of spray gun spraying, silver nanowires concentration used is 1 mg/ml.
(4) with gained silver nanowires electrode in model G8023CTL-K3 micro-wave oven processing step (3), specific steps are such as
Under:
Gained silver nanowires electrode in step (3) is put into the micro-wave oven of model G8023CTL-K3, to micro-wave oven plus 220
V operating voltage heats 1 s to silver nanowires electrode TRANSIENT HIGH TEMPERATURE therein is put into.
The method of micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment silver nanowires electrode provided by the invention, favorable repeatability, and it is suitable
For a variety of common rigidity and flexible substrate.Fig. 6 (a) is the silver nanowires electrode of various substrates in the microwave under 220 V voltages
Furnace TRANSIENT HIGH TEMPERATURE heats the variation diagram of sheet resistance before and after 1 s.Fig. 6 (b) is the silver nanowires electrode 220 V electricity of various substrates
Depress the change rate figure that micro-wave oven TRANSIENT HIGH TEMPERATURE heats sheet resistance before and after 1 s.It can be seen that at the heating of micro-wave oven TRANSIENT HIGH TEMPERATURE
Reason is suitable for the silver nanowires of common rigidity and flexible substrate, and experimental repeatability is preferable.
Claims (7)
1. a kind of high conductivity and the transparent silver nanowires electrode preparation method having good stability, it is characterised in that specific steps are such as
Under:
(1) hydroxylated substrate is provided, connects octadecyl trichlorosilane alkane on surface later；
(2) spin coating dimethyl silicone polymer (PDMS) on the substrate obtained in step (1)；
(3) silver nanowires is sprayed on substrate obtained in step (2), silver nanowires to be sprayed forms fine and close film, i.e.,
As silver nanowires electrode；
(4) with silver nanowires electrode in micro-wave oven TRANSIENT HIGH TEMPERATURE heat treatment step (3)；
(5) transparent silver nanowires is obtained after removing silver nanowires electrode obtained by step (4) on the substrate described in step (1)
Electrode.
2. a kind of high conductivity according to claim 1 and the transparent silver nanowires electrode preparation method having good stability,
It is characterized in that substrate is the flexibilities such as rigid substrates and polyethylene terephthalate (PET) such as glass in the step (1)
Substrate；The hydroxylated glass substrate processing step is as follows:
To glass substrate oxygen plasma treatment, hydroxyl can be formed on surface, the condition of oxygen plasma treatment is as follows: processing
Time is 0.5 ~ 1 min；Power is 20 ~ 40 W；Processing atmosphere is oxygen atmosphere；Vacuum degree is 30 ~ 40 Pa；Oxygen gas flow rate is 5
~10 sccm。
3. a kind of high conductivity according to claim 1 and the transparent silver nanowires electrode preparation method having good stability,
It is characterized in that the step of connection octadecyl trichlorosilane alkane is as follows: hydroxylated glass substrate, which is placed in volume ratio, is
0.5 ~ l h is impregnated in the mixed liquor of normal heptane and the octadecyl trichlorosilane alkane composition of 1000:1, described 18 can be connected
Alkyltrichlorosilanes.
4. a kind of high conductivity according to claim 1 and the transparent silver nanowires electrode preparation method having good stability,
It is characterized in that in the step (2), the step of spin coating dimethyl silicone polymer (PDMS), is as follows: by dimethyl silicone polymer
10:1 is uniformly mixed by volume with curing agent, is obtained dimethyl silicone polymer after standing 30 min, is spin-coated on step (1)
In on obtained substrate, dimethyl silicone polymer substrate can be obtained after solidification；Wherein the revolving speed of spin coating is 3000 ~ 5000
R/s, spin-coating time are 10 ~ 20 s；Cured temperature is 70 ~ 100 DEG C, and curing time is 1 ~ 2 h.
5. a kind of high conductivity according to claim 1 and the transparent silver nanowires electrode preparation method having good stability,
It is characterized in that as follows the step of spraying silver nanowires in the step (3): gained substrate in step (2) is placed in temperature
For on 150 DEG C of baking platform, using silver nanowires described in spray gun spraying, silver nanowires concentration is 1 mg/ml, to form densification
Distance is 10 ~ 20 cm between gained substrate in silver nanowires conductive film, spray gun and step (2), sprays the silver nanowires electrode
It is 30 ~ 60 layers.
6. a kind of high conductivity according to claim 1 and the transparent silver nanowires electrode preparation method having good stability,
It is characterized in that in the step (4), the step of micro-wave oven TRANSIENT HIGH TEMPERATURE heats Processing Ag nano line electrode, is as follows:
4-1) the micro-wave oven model G8023CTL-K3；
4-2) add 220 V operating voltages to micro-wave oven, gained silver nanowires electrode in step (2) is put into wherein, to being put into it
In silver nanowires electrode TRANSIENT HIGH TEMPERATURE heat the different time, the time be 1 ~ 3 s；
Be 4-3) 1 s to the micro-wave oven setting working time, by gained silver nanowires electrode in step (2) be put into wherein, with
Different operating voltages heats to silver nanowires electrode TRANSIENT HIGH TEMPERATURE therein is put into, and operating voltage is the V of 180 V ~ 220.
7. a kind of high conductivity according to claim 1 and the transparent silver nanowires electrode preparation method having good stability,
It is characterized in that in the step (5), the step of removing device, is as follows: with very thin blade by the poly dimethyl of device edge
Siloxanes is scratched, then with tweezers along one side picking up slowly, transparent silver nanowires electrode can be obtained.
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| CN112908521A (en) * | 2021-01-20 | 2021-06-04 | 山东大学 | Flexible electrode with metal nanowire coffee ring structure and preparation method thereof |
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