CN106876502A - A kind of method that 3D inkjet printings prepare HIT electrodes - Google Patents
A kind of method that 3D inkjet printings prepare HIT electrodes Download PDFInfo
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- CN106876502A CN106876502A CN201710167092.6A CN201710167092A CN106876502A CN 106876502 A CN106876502 A CN 106876502A CN 201710167092 A CN201710167092 A CN 201710167092A CN 106876502 A CN106876502 A CN 106876502A
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- conductive ink
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- 238000007641 inkjet printing Methods 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000002245 particle Substances 0.000 claims abstract description 54
- 238000007639 printing Methods 0.000 claims abstract description 34
- 239000007921 spray Substances 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 68
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 43
- 238000003756 stirring Methods 0.000 claims description 43
- 238000002604 ultrasonography Methods 0.000 claims description 39
- 238000006243 chemical reaction Methods 0.000 claims description 29
- 239000002270 dispersing agent Substances 0.000 claims description 15
- 239000003960 organic solvent Substances 0.000 claims description 15
- 239000004094 surface-active agent Substances 0.000 claims description 15
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 229920001187 thermosetting polymer Polymers 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 11
- 238000001556 precipitation Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 10
- 238000010792 warming Methods 0.000 claims description 9
- 239000012982 microporous membrane Substances 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 claims description 4
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- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
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- 239000002253 acid Substances 0.000 claims description 4
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- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 claims description 4
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
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- -1 Lauxite Chemical compound 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
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- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- 230000001351 cycling effect Effects 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
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- 239000003822 epoxy resin Substances 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 2
- 229940070765 laurate Drugs 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 241000209094 Oryza Species 0.000 claims 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims 2
- UHOPWFKONJYLCF-UHFFFAOYSA-N 2-(2-sulfanylethyl)isoindole-1,3-dione Chemical compound C1=CC=C2C(=O)N(CCS)C(=O)C2=C1 UHOPWFKONJYLCF-UHFFFAOYSA-N 0.000 claims 1
- 239000004593 Epoxy Substances 0.000 claims 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 230000003213 activating effect Effects 0.000 claims 1
- 150000001335 aliphatic alkanes Chemical class 0.000 claims 1
- 235000013877 carbamide Nutrition 0.000 claims 1
- 239000004202 carbamide Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- VIRPUNZTLGQDDV-UHFFFAOYSA-N chloro propanoate Chemical compound CCC(=O)OCl VIRPUNZTLGQDDV-UHFFFAOYSA-N 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 abstract description 17
- 239000004332 silver Substances 0.000 abstract description 17
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- 238000002360 preparation method Methods 0.000 abstract description 8
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- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000009766 low-temperature sintering Methods 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 57
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- 230000000694 effects Effects 0.000 description 11
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- 239000000758 substrate Substances 0.000 description 4
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- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical class OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
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- 238000009825 accumulation Methods 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 229910017053 inorganic salt Inorganic materials 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
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- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
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- 238000007738 vacuum evaporation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The present invention relates to a kind of method that 3D inkjet printings prepare HIT electrodes, using 3D inkjet technologies, is carried out by inkjet printing twice and acquisition front electrode is dried for the front on the HIT solar cells for forming TCO films using two kinds of different formula of size first, then inkjet printing is carried out to the back side in the same way and obtains backplate, finally solidified.The present invention reduces the use of silver, battery cost is saved, and spraying printing twice reduces contact resistance and line resistance respectively, improves photoelectric transformation efficiency.Additionally, HIT electrode fabrications only need low-temperature sintering, heating energy consumption is reduced, the energy is saved, obtained ink good dispersion, stability is high, the phenomenon that agglomerated particle in ink blocks spray printing hole can be substantially reduced, the characteristics of with low production cost, simple process equipment, preparation process green high-efficient.
Description
Technical field
The present invention relates to a kind of preparation method of electrode of solar battery, prepared more particularly, to a kind of 3D inkjet printings
The method of HIT electrodes.
Background technology
Inkjet technology is a kind of contactless, no pressure, the conventional printing techniques without printing plate, is conventionally used in paper substrates
Font, pattern printing on, its pattern is generally Two-dimensional morphology, and spray printing material is carbon-based ink or organic and inorganic salt material
Color inks.With the combination of rapid shaping technique and printing technique, three-dimensional printing technology (3D printing) is occurred in that, can respectively
The organic and inorganic functional material of kind is without mask, non-contactly successively printing is piled up in substrate surface, forms the vertical of specific form structure
Shape, can be function element, part, model, even human organ or bone etc..Original can be saved using 3D printing technique
Material, realizes from computer design pattern straight forming, shortens the R＆D cycle, can quick, neatly change design.Printer sheet
The manufacture of body is relatively easy, and the material which kind of is selected be adapted to printing realizes objective function, the pass as 3D printing technique development
Key.
Since eighties of last century oil crisis, each state all carrys out alleviating energy crisis in a kind of new energy of discussion.Solar-electricity
Sunshine is directly converted into electric power by pond, is a kind of clean energy resource, thus this novel energy increasingly receives much concern.With too
The lifting of positive energy cell photoelectric conversion efficiency, the cost of photovoltaic generation is sunny local close to thermal power generation cost, state
Border energy administration prediction solar power generation amount accounts for the 16% of global generated energy in the year two thousand fifty, will be the main shape that future source of energy is obtained
One of formula.Solar cell has numerous species, and wherein HIT solar cells have high conversion efficiency, and preparation process is simple, temperature is low
The features such as, it is one of low price battery of large-scale application.Advantage of the HIT solar cells in preparation technology and material, adds it
High conversion efficiency, therefore with preferable development prospect.
Similar with crystal silicon solar batteries, in industrialized production, the surface metalation of HIT solar cells is also adopted by silver
Slurry silk-screen printing technique, therefore electrode fabrication is one of critical process of HIT solar cells.The method for making electrode mainly has
The silk-screen printing of vacuum evaporation, plating, silk-screen printing etc., wherein silver paste and low-temperature sintering are used in current HIT battery productions
Process.Silver electrode is distributed in battery surface in H types finger-like, fine rule (thin grid) collected current, and thick line (main grid) derives electricity
Stream.To improve the performance of HIT batteries, need to consider the following aspects in electrode fabrication：1. silver electrode is shared by front
Area, determines the size of smooth surface, is inversely proportional with photoelectric conversion efficiency of the solar battery, therefore, shading-area should be as small as possible,
Thin grid and main grid are as narrow as possible, to improve the J of batterysc；2. the internal resistance of silver electrode should be as low to improve delivery efficiency as possible, in body
Under resistivity same case, grid line is as high as possible, increases cross-sectional area to reduce electrode internal resistance, between electrode and battery surface
Contact resistance size should be as low as possible, is typically directly proportional to electrode primary granule size and 3. uses high-quality, low-resistance grid line
Electrode material, to improve the FF of battery, grid line resistance and the electrode primary granule size of general battery are inversely proportional.
HIT batteries due to the characteristic of amorphous silicon membrane determine its sintering temperature can only at 200 DEG C or so, therefore select
Slurry must be low-temperature pulp, should reach electric conductivity higher using low-temperature pulp requirement, the contact resistance between TCO thin film
It is low again.At present, the low temperature silver paste that can be applied to HIT batteries has two types.One kind is thermoplasticity slurry, its solvent compared with
It is many, it is necessary to control the sintering temperature to prevent solvent hold-up in electrode and the contact area of silicon chip.The heating of this slurry is then started to gather
Solidification is closed, while be conducive to moving freely long chain polymer molecules, and cooling then reduces this movement.Another kind is thermosetting
Slurry, its performance is then entirely different.In heat curing process, thermosetting polymer formationization between adjacent polymer chain
Key is learned, three-dimensional net structure is resulted in, it is firmer than the two-dimensional structure that thermoplasticity slurry is formed.
In silk screen process technology, about 30-45 microns of the perforate of web plate, after slurry single printing-sintering, width is micro- in 50-60
Rice is even broader, and height is general at 12-20 microns, and the ratio of its height and the width is blocked up below 0.4 due to printing mesh
Plug, there is the possibility that electrode breaks.If using inkjet technology, successively printing accumulation molding, width 30-50 can be formed
Micron, height 30-50 microns of thin grid line, depth-width ratio can accomplish 1, can reduce shading-area, reduce electrode internal resistance and carry
High conversion efficiency, while also reducing silver paste consumption.Its moulding mechanism is, ink jet-print head is by ink spray printing to base material battery
On piece, because base station heats reason cell piece surface temperature at 150-200 DEG C, ink droplet is ejected into cell piece surface solvent and waves rapidly
Hair, in surface sediment, repeatedly in same local spray printing, grid line will progressively increase remaining solid particle and line width keeps not
Become.
Traditional HIT electrode fabrications are typically based on screen printing technique, for example Chinese invention patent, application publication number
CN102738302A, discloses a kind of forming method of HIT electrode of solar battery, is characterized in the HIT for forming ito film too
On positive energy battery, the tow sides using secondary printing technology in battery print to gate line electrode, wherein, the second printing
Main grid silver paste it is lower than the silver content of the thin grid silver paste of the first printing.Though the method reduces cost, continue secondary
The advantage of printing technology, but still there is a problem of silk-screen printing.For another example, Chinese invention patent, application publication number
CN103887348A, discloses a kind of HIT solar cel electrodes and preparation method thereof, and its feature is will according to certain spacing
Wire is pulled to battery surface top and covered by a certain amount of conducting resinl apposition by wire-drawing frame on the metal filament, then, from
And constitute the thin gate line electrode of series of parallel arrangement.And its primary gate electrode still uses silk-screen printing technique, and its is heat treated
The temperature of Cheng Suoxu is higher than 200 DEG C, does not meet the low-temperature sintering requirement of HIT electrodes.
The content of the invention
The purpose of the present invention is exactly to provide a kind of 3D inkjet printing systems for the defect for overcoming above-mentioned prior art to exist
The method of standby HIT electrodes, can save silver paste consumption, reduce production cost；Grid line depth-width ratio is improved to reduce shielded area, from
And improve conversion efficiency；Additionally, preparation process process equipment is simple, green high-efficient.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of method that 3D inkjet printings prepare HIT electrodes is different using two kinds first using 3D inkjet technologies
Formula of size carries out inkjet printing twice and dries acquisition front electrode to the front on the HIT solar cells for forming TCO films,
Then inkjet printing is carried out to the back side in the same way and obtains backplate, finally solidified.
Specifically, using ink jet-print head by conductive ink spray printing to base material cell piece, base station is heated simultaneously, battery
At 100-200 DEG C, ink droplet is ejected into cell piece surface solvent and volatilizees rapidly piece surface temperature, and remaining solid particle is in surface heap
Product, repeatedly in same local spray printing, grid line will progressively increase and line width keeps constant.
The conductive ink of first time inkjet printing is prepared using following components and weight portion content：
Nano-Ag particles 1-55, organic solvent 40-99, dispersant 0.1-10, surfactant 0.1-5, thermosetting resin
0.1-10；
Second conductive ink of inkjet printing is prepared using following components and weight portion content：
Nano-Ag particles 1-55, organic solvent 40-99, dispersant 0.1-10, surfactant 0.1-5.
As preferred embodiment, the particle size range of nano-Ag particles in the conductive ink of first time inkjet printing<
50nm, it is preferred to use particle diameter is the nano-Ag particles of 40nm, and the weight portion of addition is 35-45.Nano-Ag particles are smaller, unit plane
Nano-Ag particles are more in product, and contact points of the Nano Silver with battery surface are more, make contact resistance smaller.Second ink-jet is beaten
The particle size range of nano-Ag particles is 50-100nm in the conductive ink of print, it is preferred to use particle diameter is the nano-Ag particles of 60nm,
The weight portion of addition is 35-45.Nano-Ag particles are big, and electric conductivity is good, and the nano particle volume discharged during sintering is few, hinders line
Reduce.The grain size of nano-Ag particles should be much smaller than the nozzle diameter of printhead in spray printing device, it is ensured that the solid in ink
Particle by spray nozzle clogging, will not influence the continuity of spray printing, so as to greatly improve the quality and production efficiency of product.Nano Silver
Compared with block silver, there is bigger specific surface area, the atomicity of unit area is more, and the population of unit volume is more, burning
During knot, merged between particle and particle, surface disappears, if particle diameter is too small, can cause have a large amount of cavities, mistake in electrode body
Small Nano Silver is also easier to reunion and results in blockage, and the present invention distinguishes the Nano Silver of preferable particle size 40nm and 60nm in printing twice
With excellent effect.For solids content, content is low to be unfavorable for improving silver layer deposition efficiency, unit volume in too high then ink
Interior silver granuel subnumber is excessive, is easily formed and reunited, and currently preferred nano-Ag particles weight portion is 35-45.
Used as preferred embodiment, organic solvent boiling point is 100-150 DEG C, surface tension 20-35dyn/cm, the ink
Solvent is different from normal ink, closely related with its technique.The spray printing of the ink piles up temperature at 120-200 DEG C, using routine
Ink system, ink droplet can be in substrate surface bumping, it is impossible to be molded；If from high boiling solvent, ink droplet can expand in substrate surface
Dissipate, cause lines wide, so as to influence the conversion efficiency of battery.Surface tension is too low, it is necessary to turn down jet-printing head voltage, it is possible to
Ink droplet is set to be atomized in course of injection, nozzle surface and showerhead plate can build up ink and influence normal spray printing；Surface tension is too high,
Need the voltage of raising jet-printing head, it is possible to occur flying ink phenomenon and cause shower nozzle service life reduction.
It is further preferred that organic solvent is selected from isobutanol, ethylene glycol-methyl ether, glycol-ether, isopropanol, propionic acid third
One or more in ester, acetic acid, butyl acetate, acetamide, pyridine, 3- ethylaminoethanols, butyl butyrate or epoxychloropropane.
Described dispersant is selected from polyvinyl alcohol, polyethylene glycol, polyamide, polyurethane, polycarboxylic acids, polyvinylpyrrolidone
Or one or more in polymethylacrylic acid.Dispersant makes nano-powder particle be arranged mutually with certain same sex electric charge
Reprimand, so that stable suspersion is in dicyandiamide solution.
Described surfactant be selected from polyvinylpyrrolidone, dodecyl sodium sulfate, polyacrylamide, stearic acid,
One or more in triethanolamine, laurate or APEO.Surfactant is used to adjust ink surface tension, is adapted to
Inkjet printing requirement.
The particle diameter distribution of thermosetting resin within 100nm, preferably 40-60nm, more preferably 50nm.
The composition of thermosetting resin is selected from phenolic resin, Lauxite, melamine formaldehyde resin, epoxy resin, insatiable hunger
With one or more in resin, polyurethane, polyimides.
Conductive ink is prepared using following methods：
(1) by organic solvent and dispersant, 70-100 DEG C is warming up to, stirring 1-5min to mixture is transparent molten
Liquid；
(2) when preparing the conductive ink of first time inkjet printing, the temperature of step (1) gained clear solution is down to 20-
25 DEG C, nano-Ag particles are added, after stirring 30min, the outlet valve for opening bottom makes mixed liquor flow to the long and narrow reaction tube of bottom
Interior, opening ultrasonic rod carries out ultrasound.Ultrasound wave vibrating bar and 3-5 times that the distance of reactor tube wall is ultrasonic rod diameter, ultrasound
Ripple vibrating head is more than 1.5 times of agitating paddle single page diameter with the distance of mixing component.When ultrasonic vibration rod is inserted directly into liquid, surpass
When sound wave directly acts on liquid internal, ultrasound cavitation effect can be produced, under its effect, can be produced by scattered material inside
Powerful explosion, convection current, stirring, broken, mixing phenomena, so as to reach dispersed purpose.If ultrasonic vibration rod institute is in place
Put with tube wall apart from too small, ultrasonic wave is directly acted on tube wall, it has been limited the cavitation effect that dispersion liquid is produced；If away from
From excessive, because ultrasonic cavitation is produced around vibrating head, and energy is highly uniform is distributed in around rod, then cavitation
Effect can decline at ultrasonic rod farther out scope, cause overall dispersion effect to decline.When opening ultrasound, while opening anti-
Should pipe lower end outlet valve, circulating pump, reactor inlet valve, make material slow into and out of the control valve at material mouth by the way that control is each
Circulate, control material temperature is maintained at 20-45 DEG C, after material is through persistent loop, stirring, ultrasound 1-2 hours, in material
Heating thermosetting resin, continues cycling through, stirs, ultrasound 1-2 hours, obtains the Nano Silver mixed liquor of first time inkjet printing；
(3) during the conductive ink of second inkjet printing of preparation, the temperature of step (1) gained clear solution is down to 20-
25 DEG C, nano-Ag particles are added, after stirring 30min, the outlet valve for opening bottom makes mixed liquor flow to the long and narrow reaction tube of bottom
Interior, opening ultrasonic rod carries out ultrasound.Ultrasound wave vibrating bar and 3-5 times that the distance of reactor tube wall is ultrasonic rod diameter, ultrasound
Ripple vibrating head is more than 1.5 times of agitating paddle single page diameter with the distance of mixing component.When ultrasonic vibration rod is inserted directly into liquid, surpass
When sound wave directly acts on liquid internal, ultrasound cavitation effect can be produced, under its effect, can be produced by scattered material inside
Powerful explosion, convection current, stirring, broken, mixing phenomena, so as to reach dispersed purpose.If ultrasonic vibration rod institute is in place
Put with tube wall apart from too small, ultrasonic wave is directly acted on tube wall, it has been limited the cavitation effect that dispersion liquid is produced；If away from
From excessive, because ultrasonic cavitation is produced around vibrating head, and energy is highly uniform is distributed in around rod, then cavitation
Effect can decline at ultrasonic rod farther out scope, cause overall dispersion effect to decline.When opening ultrasound, while opening anti-
Should pipe lower end outlet valve, circulating pump, reactor inlet valve, make material slow into and out of the control valve at material mouth by the way that control is each
Circulate, control material temperature is maintained at 20-45 DEG C, after material is through persistent loop, stirring, ultrasound 1-2 hours, obtain second
The Nano Silver mixed liquor of secondary inkjet printing；
(4) Nano Silver mixed liquor resulting in step (2) and step (3) is mixed with surfactant respectively, is stirred
Uniformly, control mixed liquor surface tension for 20-40mN/m, viscosity is 1-4cP, be then 0.22 μm or 0.45 μm of micropore with aperture
Membrane filtration, the Nano Silver jet conductive ink stablized after removal precipitation.
(5) the different Nano Silver jet conductive ink of two kinds obtained by step (4) is carried out into ink-jet twice to front electrode
Printing, dries after first time inkjet printing, then carries out second inkjet printing to electrode using the slurry different from first time
And dry；Wherein, second slurry of inkjet printing is compared to unused thermosetting resin in the formula of size of first time；Then
Inkjet printing is carried out to backplate in the same way, is finally solidified.
Compared with prior art, the HIT electrodes for being prepared using the present invention reduce the use of silver, have saved battery cost,
And spraying printing twice reduces contact resistance and line resistance respectively, improves photoelectric transformation efficiency.Additionally, HIT electrode fabrications are only
Low-temperature sintering is needed, heating energy consumption is reduced, the energy has been saved.Obtained ink good dispersion, stability is high, can substantially reduce ink
Agglomerated particle blocks the phenomenon in spray printing hole in water, with low production cost, process equipment be simple, preparation process green high-efficient spy
Point.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
40.05g ethylene glycol-methyl ether is taken to be added in reactor, weigh 1.20g polyvinyl alcohol dissolving wherein, using plus
Material in reactor temperature is heated to 100 DEG C by hot pin, and transparent solution after stirring 3min after being cooled to room temperature, is slowly added to
The nano-Ag particles of 8.01g30nm, after stirring 30min, open reactor, reaction tube into and out of material mouth and circulating pump, follow material
Circulation is moved, while opening stirring, Vltrasonic device, and cooling water is passed through the temperature control outside reaction tube.Material is persistently followed
Ring, stirring, ultrasound, to phenolic resin is added in material, continue stirring, ultrasound 1.5 hours after 1.5 hours, are added in dispersion liquid
0.40g dodecyl sodium sulfates, are further continued for stirring, ultrasonic disperse and obtain black mixed liquor in 0.5 hour, are carried out using 0.22 μm of filter membrane
Filtering, removes precipitation, obtains the Nano Silver jet conductive ink for the stabilization of first time inkjet printing.After tested, get Qi Biao
Face tension force is 32.255mN/m, and viscosity is 3.0cP, and normal temperature is preserved and do not settled for 2 months.
On the HIT solar cells for forming TCO films, using Nano Silver jet conductive ink produced above to front electricity
Pole carries out first time inkjet printing and dries.
40.05g ethylene glycol-methyl ether is taken to be added in reactor, weigh 1.20g polyvinyl alcohol dissolving wherein, using plus
Material in reactor temperature is heated to 100 DEG C by hot pin, and transparent solution after stirring 3min after being cooled to room temperature, is slowly added to
The nano-Ag particles of 8.01g30nm, after stirring 30min, open reactor, reaction tube into and out of material mouth and circulating pump, follow material
Circulation is moved, while opening stirring, Vltrasonic device, and cooling water is passed through the temperature control outside reaction tube.Material is persistently followed
Ring, stirring, ultrasound, to 0.40g dodecyl sodium sulfates are added in dispersion liquid, are further continued for stirring, ultrasonic disperse after 1.5 hours
0.5 hour black mixed liquor, filtered using 0.22 μm of filter membrane, remove precipitation, obtain for second inkjet printing
The Nano Silver jet conductive ink of stabilization.After tested, its surface tension is obtained for 32.255mN/m, viscosity is 3.0cP, normal temperature is preserved
Do not settle within 2 months.
On the electrode for having carried out first time inkjet printing is carried out using Nano Silver jet conductive ink produced above
Secondary inkjet printing is simultaneously dried.
Then inkjet printing is carried out to backplate in the same way, is finally solidified.
Embodiment 2
Take 38.54g glycol-ethers to be added in reactor, weigh the dissolving of 1.16g polyethylene glycol wherein, at room temperature
After stirring 3min, in homogeneous transparent solution, the nano-Ag particles of 7.71g50nm are slowly added to, after stirring 30min, open reaction
Kettle, reaction tube flow Matter Transfer into and out of material mouth and circulating pump, while opening stirring, Vltrasonic device, and cooling water are led to
Enter the temperature control outside reaction tube.Material persistent loop, stirring, ultrasound be after 1 hour, in material plus Lauxite, after
Continue stirring, ultrasound 1.5 hours, to 0.19g polyacrylamides are added in dispersion liquid, continue stirring, ultrasonic disperse 0.5 hour, mix
It is in brownish black to close liquid, and the mixed liquor is filtered with 0.45 μm of filter membrane, that is, obtain the stabilization for first time inkjet printing
Nano Silver jet conductive ink.After tested, its surface tension is obtained for 30.980mN/m, viscosity is 2.8cP, normal temperature preserves 2
The moon is not settled.
On the HIT solar cells for forming TCO films, using Nano Silver jet conductive ink produced above to front electricity
Pole carries out first time inkjet printing and dries.
Take 38.54g glycol-ethers to be added in reactor, weigh the dissolving of 1.16g polyethylene glycol wherein, at room temperature
After stirring 3min, in homogeneous transparent solution, the nano-Ag particles of 7.71g50nm are slowly added to, after stirring 30min, open reaction
Kettle, reaction tube flow Matter Transfer into and out of material mouth and circulating pump, while opening stirring, Vltrasonic device, and cooling water are led to
Enter the temperature control outside reaction tube.Material persistent loop, stirring, ultrasound are gathered after 1 hour to 0.19g is added in dispersion liquid
Acrylamide, continues stirring, ultrasonic disperse 0.5 hour, and mixed liquor is in brownish black, and the mixed liquor is carried out with 0.45 μm of filter membrane
Filtering, that is, obtain for second Nano Silver jet conductive ink of inkjet printing.After tested, obtaining its surface tension is
30.980mN/m, viscosity is 2.8cP, and normal temperature is preserved and do not settled for 2 months.
On the electrode for having carried out first time inkjet printing is carried out using Nano Silver jet conductive ink produced above
Secondary inkjet printing is simultaneously dried.
Then inkjet printing is carried out to backplate in the same way, is finally solidified.
Embodiment 3
By following components and content dispensing：
Afterwards, following steps are taken to prepare the Nano Silver jet conductive ink for first time inkjet printing：
(1) by organic solvent and dispersant, 70 DEG C are warming up to, stirring 1min to mixture is clear solution；
(2) after above-mentioned clear solution being cooled into 20 DEG C, nano-Ag particles is added and 30min is stirred, then entered with ultrasonic rod
Row ultrasound, at 20 DEG C, ultrasound adds thermosetting resin to temperature control after 1 hour, then ultrasonic 1 hour, obtains Nano Silver mixed liquor；
(3) Nano Silver mixed liquor is mixed with surfactant, is stirred, it is 20mN/ to control mixed liquor surface tension
M, viscosity is 1cP, then with the filtering with microporous membrane that aperture is 0.22um, obtains being beaten for first time ink-jet after removal precipitation
The Nano Silver jet conductive ink of print.
On the HIT solar cells for forming TCO films, using Nano Silver jet conductive ink produced above to front electricity
Pole carries out first time inkjet printing and dries.
By following components and content dispensing：
Afterwards, following steps are taken to prepare for second Nano Silver jet conductive ink of inkjet printing：
(1) by organic solvent and dispersant, 70 DEG C are warming up to, stirring 1min to mixture is clear solution；
(2) after above-mentioned clear solution being cooled into 20 DEG C, nano-Ag particles is added and 30min is stirred, then entered with ultrasonic rod
Row ultrasound, at 20 DEG C, ultrasound obtains Nano Silver mixed liquor to temperature control after 1 hour；
(3) Nano Silver mixed liquor is mixed with surfactant, is stirred, it is 20mN/ to control mixed liquor surface tension
M, viscosity is 1cP, then with the filtering with microporous membrane that aperture is 0.22um, obtains being beaten for second ink-jet after removal precipitation
The Nano Silver jet conductive ink of print.
On the electrode for having carried out first time inkjet printing is carried out using Nano Silver jet conductive ink produced above
Secondary inkjet printing is simultaneously dried.
Then inkjet printing is carried out to backplate in the same way, is finally solidified.
Embodiment 4
By following components and content dispensing：
Afterwards, following steps are taken to prepare the Nano Silver jet conductive ink for first time inkjet printing：
(1) by organic solvent and dispersant, 100 DEG C are warming up to, stirring 5min to mixture is clear solution；
(2) after above-mentioned clear solution being cooled into 25 DEG C, nano-Ag particles is added and 30min is stirred, then entered with ultrasonic rod
Row ultrasound, at 45 DEG C, ultrasound adds thermosetting resin to temperature control after 2 hours, then ultrasonic 2 hours, obtains Nano Silver mixed liquor；
(3) Nano Silver mixed liquor is mixed with surfactant, is stirred, it is 40mN/ to control mixed liquor surface tension
M, viscosity is 4cP, then with the filtering with microporous membrane that aperture is 0.45um, obtains being beaten for first time ink-jet after removal precipitation
The Nano Silver jet conductive ink of print.
On the HIT solar cells for forming TCO films, using Nano Silver jet conductive ink produced above to front electricity
Pole carries out first time inkjet printing and dries.
By following components and content dispensing：
Afterwards, following steps are taken to prepare for second Nano Silver jet conductive ink of inkjet printing：
(1) by organic solvent and dispersant, 100 DEG C are warming up to, stirring 5min to mixture is clear solution；
(2) after above-mentioned clear solution being cooled into 25 DEG C, nano-Ag particles is added and 30min is stirred, then entered with ultrasonic rod
Row ultrasound, at 45 DEG C, ultrasound obtains Nano Silver mixed liquor to temperature control after 2 hours；
(3) Nano Silver mixed liquor is mixed with surfactant, is stirred, it is 40mN/ to control mixed liquor surface tension
M, viscosity is 4cP, then with the filtering with microporous membrane that aperture is 0.45um, obtains being beaten for second ink-jet after removal precipitation
The Nano Silver jet conductive ink of print.
On the electrode for having carried out first time inkjet printing is carried out using Nano Silver jet conductive ink produced above
Secondary inkjet printing is simultaneously dried.
Then inkjet printing is carried out to backplate in the same way, is finally solidified.
Embodiment 5
By following components and content dispensing：
Afterwards, following steps are taken to prepare the Nano Silver jet conductive ink for first time inkjet printing：
(1) by organic solvent and dispersant, 80 DEG C are warming up to, stirring 3min to mixture is clear solution；
(2) after above-mentioned clear solution being cooled into 23 DEG C, nano-Ag particles is added and 30min is stirred, then entered with ultrasonic rod
Row ultrasound, temperature control is at 35 DEG C, and ultrasound adds oxide component after 1.5 hours, then ultrasonic 1.5 hours, obtains Nano Silver and mixes
Close liquid；
(3) Nano Silver mixed liquor is mixed with surfactant, is stirred, it is 30mN/ to control mixed liquor surface tension
M, viscosity is 3cP, then with the filtering with microporous membrane that aperture is 0.45um, obtains being beaten for first time ink-jet after removal precipitation
The Nano Silver jet conductive ink of print.
On the HIT solar cells for forming TCO films, using Nano Silver jet conductive ink produced above to front electricity
Pole carries out first time inkjet printing and dries.
By following components and content dispensing：
Afterwards, following steps are taken to prepare for second Nano Silver jet conductive ink of inkjet printing：
(1) by organic solvent and dispersant, 80 DEG C are warming up to, stirring 3min to mixture is clear solution；
(2) after above-mentioned clear solution being cooled into 23 DEG C, nano-Ag particles is added and 30min is stirred, then entered with ultrasonic rod
Row ultrasound, at 35 DEG C, ultrasound obtains Nano Silver mixed liquor to temperature control after 1.5 hours；
(3) Nano Silver mixed liquor is mixed with surfactant, is stirred, it is 30mN/ to control mixed liquor surface tension
M, viscosity is 3cP, then with the filtering with microporous membrane that aperture is 0.45um, obtains being beaten for second ink-jet after removal precipitation
The Nano Silver jet conductive ink of print.
On the electrode for having carried out first time inkjet printing is carried out using Nano Silver jet conductive ink produced above
Secondary inkjet printing is simultaneously dried.
Then inkjet printing is carried out to backplate in the same way, is finally solidified.
Electrode to being prepared by the above method is tested.Wherein, 35.6 μm of front electrode height, width is 45 μm,
Depth-width ratio is 0.79, the μ Ω cm of resistivity 4.2；46 μm of backplate height, width is 35 μm, and depth-width ratio is 0.76, resistivity
4μΩ·cm.HIT batteries to being made are tested, and are opened pressure ratio conventional screen printed battery and are improved 2mv, and short circuit current increases
0.13A, photoelectric transformation efficiency increase by 0.4%.Silver paste consumption reduces 30% simultaneously.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (10)
1. a kind of method that 3D inkjet printings prepare HIT electrodes, it is characterised in that the method utilizes 3D inkjet technologies, first
First carry out twice that inkjet printing is simultaneously to the front on the HIT solar cells for forming TCO films using two kinds of different formula of size
Drying obtains front electrode, and then carrying out inkjet printing to the back side in the same way obtains backplate, is finally solidified
.
2. the method that a kind of 3D inkjet printings according to claim 1 prepare HIT electrodes, it is characterised in that utilize ink-jet
By on conductive ink spray printing to base material cell piece, base station is heated printhead simultaneously, and cell piece surface temperature is black at 100-200 DEG C
Drop is ejected into cell piece surface solvent and volatilizees rapidly, remaining solid particle in surface sediment, repeatedly in same local spray printing, grid
Line will progressively increase and line width keeps constant.
3. the method that a kind of 3D inkjet printings according to claim 1 prepare HIT electrodes, it is characterised in that spray for the first time
The conductive ink of ink printing is prepared using following components and weight portion content：
Nano-Ag particles 1-55, organic solvent 40-99, dispersant 0.1-10, surfactant 0.1-5, thermosetting resin 0.1-
10；
Second conductive ink of inkjet printing is prepared using following components and weight portion content：
Nano-Ag particles 1-55, organic solvent 40-99, dispersant 0.1-10, surfactant 0.1-5.
4. the method that a kind of 3D inkjet printings according to claim 4 prepare HIT electrodes, it is characterised in that spray for the first time
The particle size range of nano-Ag particles in the conductive ink of ink printing<50nm, it is preferred to use particle diameter is the nano-Ag particles of 40nm, plus
The weight portion for entering preferably 35-45；
The particle diameter of nano-Ag particles is 50-100nm in second conductive ink of inkjet printing, it is preferred to use particle diameter is 60nm's
Nano-Ag particles, the weight portion of addition is preferably 35-45.
5. the method that a kind of 3D inkjet printings according to claim 4 prepare HIT electrodes, it is characterised in that described has
The boiling point of machine solvent be 100-150 DEG C, surface tension is 20-35dyn/cm, selected from isobutanol, ethylene glycol-methyl ether, ethylene glycol-
Ether, isopropanol, propyl propionate, acetic acid, butyl acetate, acetamide, pyridine, 3- ethylaminoethanols, butyl butyrate or epoxy chloropropionate
One or more in alkane.
6. the method that a kind of 3D inkjet printings according to claim 4 prepare HIT electrodes, it is characterised in that described divides
Powder is selected from polyvinyl alcohol, polyethylene glycol, polyamide, polyurethane, polycarboxylic acids, polyvinylpyrrolidone or polymethylacrylic acid
One or more.
7. the method that a kind of 3D inkjet printings according to claim 4 prepare HIT electrodes, it is characterised in that described table
Face activating agent be selected from polyvinylpyrrolidone, dodecyl sodium sulfate, polyacrylamide, stearic acid, triethanolamine, laurate or
One or more in APEO.
8. the method that a kind of 3D inkjet printings according to claim 4 prepare HIT electrodes, it is characterised in that described heat
The particle diameter distribution of thermosetting resin within 100nm, preferably 50nm, using phenolic resin, Lauxite, carbamide
One or more in resin, epoxy resin, unsaturated-resin, polyurethane or polyimides.
9. the method that a kind of 3D inkjet printings according to claim 4 prepare HIT electrodes, it is characterised in that spray for the first time
The conductive ink of ink printing is prepared using following methods：
(1) organic solvent is mixed with dispersant in reaction tube, is warming up to 70-100 DEG C, stirring 1-5min to mixture is
Bright solution；
(2) after above-mentioned clear solution being cooled into 20-25 DEG C, nano-Ag particles is added and 30min is stirred, then carried out with ultrasonic rod
Ultrasound, ultrasonic rod and 3-5 times that the distance of reaction tube wall is ultrasonic rod diameter, temperature control is at 20-45 DEG C, and ultrasonic 1-2 is small
When after add thermosetting resin, then ultrasound 1-2 hours obtains Nano Silver mixed liquor；
(3) Nano Silver mixed liquor is mixed with surfactant, is stirred, control mixed liquor surface tension for 20-40mN/m,
Viscosity is 1-4cP, and then with the filtering with microporous membrane that aperture is 0.22 μm or 0.45 μm, that is stablized after removal precipitation receives
The silver-colored jet conductive ink of rice；
The conductive ink of second inkjet printing is prepared using following methods：
(1) organic solvent is mixed with dispersant in reaction tube, is warming up to 70-100 DEG C, stirring 1-5min to mixture
It is clear solution；
(2) after above-mentioned clear solution being cooled into 20-25 DEG C, nano-Ag particles is added and 30min is stirred, then carried out with ultrasonic rod
Ultrasound, ultrasonic rod and 3-5 times that the distance of reaction tube wall is ultrasonic rod diameter, temperature control is at 20-45 DEG C, and ultrasonic 1-2 is small
Shi Hou, obtains Nano Silver mixed liquor；
(3) Nano Silver mixed liquor is mixed with surfactant, is stirred, control mixed liquor surface tension for 20-40mN/m,
Viscosity is 1-4cP, and then with the filtering with microporous membrane that aperture is 0.22 μm or 0.45 μm, that is stablized after removal precipitation receives
The silver-colored jet conductive ink of rice.
10. the method that a kind of 3D inkjet printings according to claim 10 prepare HIT electrodes, it is characterised in that for the first time
The step of conductive ink of inkjet printing (2), specifically uses following methods：
The temperature of step (1) gained clear solution is down to 20-25 DEG C, nano-Ag particles are added, after stirring 30min, bottom is opened
The outlet valve in portion makes mixed liquor flow in the long and narrow reaction tube of bottom, and opening ultrasonic rod carries out ultrasound, while outside to reaction tube
Logical cooling water in temperature control, and outlet valve, circulating pump, the reactor inlet valve of reaction tube lower end are opened, it is each by control
Material is set slowly to circulate into and out of the control valve at material mouth, control material temperature is maintained at 20-45 DEG C, and material is through persistently following
Ring, stirring, ultrasound be after 1-2 hours, to thermosetting resin is heated in material, continues cycling through, stirs, ultrasound 1-2 hours, obtains nanometer
Silver-colored mixed liquor；
The step of conductive ink of second inkjet printing (2), specifically uses following methods：
The temperature of step (1) gained clear solution is down to 20-25 DEG C, nano-Ag particles are added, after stirring 30min, bottom is opened
The outlet valve in portion makes mixed liquor flow in the long and narrow reaction tube of bottom, and opening ultrasonic rod carries out ultrasound, while outside to reaction tube
Logical cooling water in temperature control, and outlet valve, circulating pump, the reactor inlet valve of reaction tube lower end are opened, it is each by control
Material is set slowly to circulate into and out of the control valve at material mouth, control material temperature is maintained at 20-45 DEG C, and material is through persistently following
Ring, stirring, ultrasound obtain Nano Silver mixed liquor after 1-2 hours.
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| CN113394554A (en) * | 2020-03-13 | 2021-09-14 | 昆山哈勃电波电子科技有限公司 | Method for preparing antenna by adopting TDP printing process |
| CN113237580A (en) * | 2021-05-19 | 2021-08-10 | 郑州大学 | MXene high-sensitivity piezoresistive sensor and preparation method thereof |
| CN113237580B (en) * | 2021-05-19 | 2023-01-10 | 郑州大学 | MXene high-sensitivity piezoresistive sensor and preparation method thereof |
| CN114220588A (en) * | 2021-11-23 | 2022-03-22 | 苏州思尔维纳米科技有限公司 | Ink-jet printing HIT low-temperature silver paste and preparation method thereof |
| CN114220588B (en) * | 2021-11-23 | 2024-02-09 | 苏州思尔维纳米科技有限公司 | HIT low-temperature silver paste for ink-jet printing and preparation method thereof |
| CN116072350A (en) * | 2023-04-07 | 2023-05-05 | 江西理工大学南昌校区 | Method for preparing conductive silver paste for solar cell electrode in situ |
| CN116072350B (en) * | 2023-04-07 | 2023-08-15 | 江西理工大学南昌校区 | Method for preparing conductive silver paste for solar cell electrode in situ |
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