CN102815870A - Nano glass powder, method for preparing same and application - Google Patents
Nano glass powder, method for preparing same and application Download PDFInfo
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- CN102815870A CN102815870A CN2011101564718A CN201110156471A CN102815870A CN 102815870 A CN102815870 A CN 102815870A CN 2011101564718 A CN2011101564718 A CN 2011101564718A CN 201110156471 A CN201110156471 A CN 201110156471A CN 102815870 A CN102815870 A CN 102815870A
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- 239000011521 glass Substances 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000007639 printing Methods 0.000 claims abstract description 16
- 238000001704 evaporation Methods 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 37
- 239000000203 mixture Substances 0.000 claims description 30
- 239000002245 particle Substances 0.000 claims description 18
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 14
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- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 8
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- 238000002309 gasification Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 5
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- 230000000996 additive effect Effects 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 150000001340 alkali metals Chemical class 0.000 claims description 2
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 claims description 2
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- 239000000155 melt Substances 0.000 description 6
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- 239000012752 auxiliary agent Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
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- 239000013543 active substance Substances 0.000 description 2
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- 238000001816 cooling Methods 0.000 description 2
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- 238000007641 inkjet printing Methods 0.000 description 2
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Abstract
The invention belongs to the technical field of material chemistry, relates to nano glass powder and particularly relates to the nano glass powder, a method for preparing same and application. The nano glass powder is made of metal oxide, the granule diameter of the nano glass powder is in a range from 1nm to 100nm, and the granule diameter of the nano glass powder which accounts for 30-70% of total weight is in a range from 10nm to 60nm. A laser-resistance composite heating evaporation method is used for preparing the nano glass powder, the productive rate of the prepared nano glass powder is high, the granule size of the nano glass powder is even, the purity of the nano glass powder is high, and simultaneously, the average granule diameter of the prepared nano glass powder is small. The problem that an ink gun is blocked due to the fact that glass powder of large granule diameters is added in traditional solar cell printing ink is solved effectively.
Description
[technical field]
The invention belongs to material chemistry technical field, relate to a kind of nano-glass powder, particularly a kind of nano-glass powder.
[background technology]
In order to export the electric energy of silicon solar cell, must on battery, make positive and negative two electrodes.Electrode is exactly the electro-conductive material that forms tight ohmic contact with battery P-N knot two ends.At present, in the production of solar cell, mainly be to make solar cell through the technology of silk screen printing, silk screen printing is to be attached the template that has image or pattern on silk screen to print.Usually silk screen is made by nylon, polyester, silk or wire netting.When below stock is placed directly in the silk screen that has template, screen printing ink or coating penetrate silk screen intermediary mesh under the extruding of scraper, be printed onto on the stock.Along with screen printing technique is constantly progressive; The electrode wires of silk screen printing can reach very tiny stage; But over the past two years; Developed a kind of technology that the spray ink Printing process application is electrically connected in solar cell gradually, the silver " ink " that spray ink Printing technology is used is more much better than than the silver paste electroconductibility that silk-screen printing technique uses, and spray ink Printing technology is also more accurate.Therefore, reach 100～125 μ m compared to silk-screen printing technique silver conductor width, the silver-colored conductor width that novel process is printed is much narrow, is merely 35～40 μ m.The minimizing of silver consumption has also reduced cost.In addition, because the extinction area that narrower lead blocks is littler, novel process can also promote the performance of solar cell.And the great advantage of spray ink Printing technology is not contact silicon chip, can not exert pressure to it.This makes and utilizes thinner silicon chip to become possibility.In traditional solar cell, silicon chip has 200 μ m thick usually approximately, and thinner silicon chip may break in screen printing process.And for non-contacting spray ink Printing technology, need not worry the thickness of silicon chip, can reach 100 μ m even lower.This means and to save 50% silicon cost.
In silk-screen printing technique, the electrode wires of printing solar cell need be used electrode slurry.Electrode slurry is made up of raw materials such as metal-powder, superfine glass powder, organic carrier and a spot of modified additives according to a certain percentage, and metal-powder is as conductive phase, and the superfine glass powder is not as bonding phase, and they are dispersed in the organic carrier.Palladium powder is fused through high temperature by the various oxide compounds that can form glass; The shrend refinement obtains then, adds after the palladium powder, can obviously reduce the sintering peak temperature; Make metal powder behind peak temperature, form metal grid lines, stronger sticking power is arranged with silicon chip.But because for ink jet printing; The scope of the diameter of the nozzle of ink gun is at 10～60 microns; For fear of the situation that plug in spray ink Printing, occurs; Must make metal-powder, frit and organic carrier particle in the ink be lower than 1 micron to the strict restriction of the particle of material in the ink as far as possible.Simultaneously, the solids precipitation in the ink, the actual particle diameter that requires metal-powder and frit is less than 100 nanometers.The technology of preparation nano metal powder is very ripe at present; But for frit; Need prepare technology also not record on present document of nano level frit, prepare the technology that nano level frit is the most critical of ink gun plug when avoiding spray ink Printing.
Application number is that 200880104944.6 Chinese invention patent discloses a kind of layered contact structure that is used for solar cell; Ink jet printing first ink lay on silicon wafer; Said printing ink comprises frit, and said frit has less than about 3 microns mean particle size and about 200 ℃～700 ℃ glass transition temperature.Can adopt and have though be mentioned to frit in the said electrically conductive ink in this patent the inside,, be more preferably less than about 50 nanometers, still more preferably less than the mean particle size of about 30 nanometers preferably less than about 100 nanometers less than 1000 nanometers.But it is not put down in writing said nano level frit and how to prepare in patent documentation, the applicant has retrieved other patents and scientific and technical literature data, and also nobody works out the correlation technique of preparation nano-glass powder at present.
[summary of the invention]
In order to solve above-mentioned technical problem, the present invention proposes a kind of nano-glass powder.The nano-glass powder productive rate that adopts the present invention to prepare is high, and epigranular, is applied to can avoid the problem of ink gun plug in the ink of spray ink Printing, also has lower sintering temperature simultaneously, and the frit behind the sintering has adhesive preferably.
Concrete technical scheme of the present invention is following:
The present invention provides a kind of nano-glass powder, and said glass powder is made up of MOX, and the particle size range of said nano-glass powder is 1～100nm, and the size distribution of nano-glass powder that wherein accounts for gross weight 30%～70% is at 10～60nm.
By weight percentage, above-mentioned glass powder comprises following component:
SiO
2：0％～30％；
B
2O
3：0％～35％；
P
2O
5：0％～10％；
Alkali-metal oxide compound: 5%～35%;
The oxide compound of earth alkali metal: 0%～5%;
Al
2O
3：0％～15％；
ZnO：0％～35％；
Wherein, SiO
2, B
2O
3And P
2O
5The summation of weight percent is greater than 30%.
Preferably, by weight percentage, above-mentioned glass powder comprises following component:
SiO
2：5％～25％；
B
2O
3：5％～25％；
P
2O
5：3％～8％；
Alkali-metal oxide compound: 5%～15%;
Al
2O
3：0％～10％；
ZnO：20％～35％。
Above-mentioned alkali-metal oxide compound comprises Na
2O, Li2O and K
2Among the O one or more, wherein, Na
2O in alkalimetal oxide shared weight percent greater than 40%.
The present invention also provides a kind of method for preparing above-mentioned nano-glass powder, it is characterized in that, this method comprises the steps:
To place anti-pyritous crucible more than 1000 ℃ by the frit that MOX is formed; And this crucible is placed in the evaporator room of sealing; Evaporator room is evacuated to below the 10Pa, and the gas mixture that charges into rare gas element and oxygen then makes air pressure to the 200～6000Pa in the evaporator room;
Glass powder in the crucible is heated to fusing, and introducing power is that the laser of 800W～1800W rises and gasification melt temperature rapidly;
The steam and the condensation that evaporated in collection, obtains nano level glass powder.
Further, aforesaid method comprises:
Introducing power from the top of evaporator room is the CO of 800W～1800W
2Laser makes the frit melt gasification that is positioned at the crucible top;
Introduce in the trap that is used to capture with condensation from a side of evaporator room evaporating the steam that; And constantly in evaporator room, charge into the gas mixture of rare gas element and oxygen through valve from another side of evaporator room; Keeping the liquid level of valve and melt is 50mm～100mm; And the rare gas element that charges into and the gas mixture of oxygen blow to trap with the steam of evaporation, and the air pressure of keeping simultaneously in the evaporator room is 200Pa～6000Pa
Mode to the heating of the glass powder in the crucible is: adopt resistance heater that the glass powder in the crucible is heated.
More excellent, the air pressure of above-mentioned evaporator room is 1000Pa.
The frit that above-mentioned MOX is formed is that particle diameter is the glass powder of 1 μ m～10mm.
The present invention provides a kind of purposes of as above-mentioned nano-glass powder in addition; This nano-glass powder is used to prepare the electrode of solar battery ink jet ink for printing; It is characterized in that; By mass percentage, comprise 50%～70% nano metal powder, 2%～15% nano-glass powder, 20%～45% organic carrier and 0%～1% modified additive in the said slurry.
Beneficial technical effects of the present invention is:
The present invention prepares the nano-glass powder through adopting the compound heating vaporization of laser-resistance; The nano-glass powder productive rate of preparing is high, powder size is even; Purity is high; The median size of the nano-glass powder of preparing simultaneously is less, has effectively avoided because cause the problem of ink gun plug because of being added with particle diameter bigger glass powder in traditional solar cell marking ink.
The present invention is active big through adopting the compound heating vaporization of laser-resistance to prepare the nano-glass powder that the nano-glass powder prepares, and sintering temperature is low.
Through each components contents in the rational adjusting glass powder, the sintering temperature of nano-glass powder is reduced, it is bonding effect that the frit behind the while sintering can play very good.
Through the air pressure of evaporator room and the liquid level of valve and melt in the rational adjusting preparation process, make that the particle diameter of nano-glass powder is less, and also bigger than the content of the shared whole nano-glass powder of small particle size, and productive rate is also bigger.
Contain certain density oxygen through in evaporative process, keeping atmosphere surrounding, avoided the nano-glass material in fusing and evaporative process, to decompose, also kept certain pressure environment simultaneously, help formation than the nano-glass powder of small particle size.
[embodiment]
The present invention relates to a kind of preparation method of nano-glass powder and adopt nano-glass powder of this method preparation and uses thereof.Through adopting the compound heating vaporization of laser-resistance to prepare the nano-glass powder; The nano-glass powder productive rate of preparing is high, powder size is even; Purity is high; The median size of the nano-glass powder of preparing simultaneously is less, has effectively avoided because cause the problem of ink gun plug because of being added with particle diameter bigger glass powder in traditional solar cell marking ink.
Below in conjunction with specific embodiment the present invention is done further to set forth and explanation:
Embodiment 1
A kind of nano-glass powder, this nano-glass powder is prepared from through following method:
(1) is the straight barrel-shaped quartz crucible that the frit of being made up of MOX of 50 μ m places Φ 40 * 40 with particle diameter, according to the mass percent meter, comprises 30% SiO in the said frit
2, 35% B
2O
3, 5% P
2O
5, 5% Na
2O, 5% MgO, 15% Al
2O
3And 5% ZnO, and said crucible placed in the evaporator room of sealing, evaporator room is evacuated to 10
-1Pa charges into gas mixture that 95% argon gas, 5% oxygen form then and makes air pressure in the evaporator room to 1000Pa;
(2) connect electrode at the two ends of crucible, import big electric current, make the crucible heating; The crucible that is heated heats the glass powder in the crucible; Continue making current to glass powder and melt, after the fusing of the centre of glass powder, i.e. the size of control current; Make glass powder be in keeping warm mode, introducing power from the top of evaporator room simultaneously is the CO of 1800W
2Laser, the laser scioptics are injected the melt at crucible top, and spot diameter is Φ 5mm, and the laser of injecting rises and gasification the melt temperature that is positioned at the crucible top rapidly;
(3) introduce in the trap that is used to capture with condensation from a side of evaporator room evaporating the steam that; And constantly in evaporator room, charge into the gas mixture that 95% argon gas, 5% oxygen are formed through valve from another side of evaporator room; Keeping the liquid level of valve and melt is 50mm; And the gas mixture that charges into blows to trap with the steam of evaporation, and the air pressure of keeping simultaneously in the evaporator room is 1000Pa;
(4) in trap, collect the steam and the condensation of evaporating, obtain nano level glass powder, constantly extract gas mixture out from the opposite side of trap simultaneously, make the air pressure in evaporator room and the trap maintain 1000Pa.When treating that the interior melt of crucible evaporates, stop to inject laser, and stop the gas mixture in the evaporator room is taken out in the crucible energising, treat that crucible slowly cools off.
The productive rate of the nano-glass powder that goes out through method for preparing is 400g/h, and the pattern through the said nano-glass powder of electron microscope observation and taking pictures, and records the granularity of powder with computingmachine image statistics analysis mode; Its particle size range is 1～100nm, and wherein, the diameter of 10% nano-glass powder is 1nm～20nm; The diameter of 35% nano-glass powder is 20nm～30nm; The diameter of 25% nano-glass powder is 30nm～40nm, and the diameter of 20% nano-glass powder is 40nm～50nm, and the diameter of 2% nano-glass powder is 50nm～60nm; The diameter of 2% nano-glass powder is 60nm～70nm; The diameter of 2% nano-glass powder is 70nm～80nm, and the diameter of 2% nano-glass powder is 80nm～90nm, and the diameter of 2% nano-glass powder is 90nm～100nm.
This nano-glass powder is used to prepare the electrode of solar battery ink jet ink for printing; During proportioning, comprise following component in the said ink by mass percentage: 50% nano metal powder, 15% nano-glass powder, 34% organic carrier and 1% auxiliary agent.Said nano metal powder comprises one or more in Ag powder, Au powder, the Al powder; Said organic carrier is resin, the for example TKK 021 that is dissolved in the solvent, also can use mixture, hydroxyl resin, the polymethyl acrylic acid of lower alcohol and the monobutyl ether of glycolmonoacetate of Type 3U, wood rosin, TKK 021 and resol to substitute.Solvent is organic solvent commonly used, for example lower alcohols, rudimentary ethers, rudimentary ketone etc.
Said auxiliary agent comprises easers such as gelifying agent, tensio-active agent.
Embodiment 2
A kind of nano-glass powder, this nano-glass powder is prepared from through following method:
(1) by weight, take by weighing 11 parts of SiO
2, 10 parts of B
2O
3, 10 parts of P
2O
5, 35 parts Na
2O, 15 parts Al
2O
3And 19 parts of electronic-grade raw materials mix such as ZnO evenly after; Place the crucible of graphite material, the using plasma heating makes each oxide compound fusing, after treating all to melt and mixing; Cooling forms the glass state material of disordered structure, and milling and forming median size is the thin glass powder of 100 μ m;
(2) above-mentioned glass powder is placed the straight barrel-shaped plumbago crucible of Φ 40 * 40; And said iron crucible is placed in the evaporator room of sealing; Evaporator room is evacuated to 10Pa, charges into gas mixture that 95% argon gas, 5% oxygen form then and make air pressure in the evaporator room to 6000Pa;
(2) connect electrode at the two ends of crucible, import big electric current, make the crucible heating; The crucible that is heated heats the glass powder in the crucible; Continue making current to glass powder and melt, after the fusing of the centre of glass powder, i.e. the size of control current; Make glass powder be in keeping warm mode, introducing power from the top of evaporator room simultaneously is the CO of 1800W
2Laser, the laser scioptics are injected the melt at crucible top, and spot diameter is Φ 5mm, and the laser of injecting rises and gasification the melt temperature that is positioned at the crucible top rapidly;
(3) introduce in the trap that is used to capture with condensation from a side of evaporator room evaporating the steam that; And constantly in evaporator room, charge into the gas mixture that 95% argon gas, 5% oxygen are formed through valve from another side of evaporator room; Keeping the liquid level of valve and melt is 100mm; And the gas mixture that charges into blows to trap with the steam of evaporation, and the air pressure of keeping when charging into gas mixture in the evaporator room is 6000Pa;
(4) in trap, collect the steam and the condensation of evaporating, obtain nano level glass powder, constantly extract gas mixture out from the opposite side of trap simultaneously, make the air pressure in evaporator room and the trap maintain 6000Pa.When treating that the interior melt of crucible evaporates, stop to inject laser, and stop the gas mixture in the evaporator room is taken out in the crucible energising, treat that crucible slowly cools off.
The productive rate of the nano-glass powder that goes out through method for preparing is 10g/h, and the pattern through the said nano-glass powder of electron microscope observation and taking pictures, and records the granularity of powder with computingmachine image statistics analysis mode; Its particle size range is 20～100nm, and wherein, the diameter of 0% nano-glass powder is 1nm～20nm; The diameter of 1% nano-glass powder is 20nm～30nm; The diameter of 3% nano-glass powder is 30nm～40nm, and the diameter of 10% nano-glass powder is 40nm～50nm, and the diameter of 20% nano-glass powder is 50nm～60nm; The diameter of 32% nano-glass powder is 60nm～70nm; The diameter of 25% nano-glass powder is 70nm～80nm, and the diameter of 7% nano-glass powder is 80nm～90nm, and the diameter of 2% nano-glass powder is 90nm～100nm.
This nano-glass powder is used to prepare the electrode of solar battery ink jet ink for printing, during proportioning, comprises following component in the said ink by mass percentage: 70% nano metal powder, 2% nano-glass powder and 28% organic carrier.Said nano metal powder comprises one or more in Ag powder, Au powder, the Al powder; Said organic carrier is resin, the for example TKK 021 that is dissolved in the solvent, also can use mixture, hydroxyl resin, the polymethyl acrylic acid of lower alcohol and the monobutyl ether of glycolmonoacetate of Type 3U, wood rosin, TKK 021 and resol to substitute.Solvent is organic solvent commonly used, for example lower alcohols, rudimentary ethers, rudimentary ketone etc.
Embodiment 3
A kind of nano-glass powder, this nano-glass powder is prepared from through following method:
(1) by weight, take by weighing 5 parts of SiO
2, 5 parts of B
2O
3, 5 parts of P
2O
5, 35 parts Na
2O, 15 parts Al
2O
3And 35 parts of electronic-grade raw materials mix such as ZnO evenly after; Place the crucible of diamond material, the using plasma heating makes each oxide compound fusing, after treating all to melt and mixing; Cooling forms the glass state material of disordered structure, and milling and forming median size is the thin glass powder of 1mm;
(2) above-mentioned glass powder is placed the straight barrel-shaped iron crucible of Φ 40 * 40; And said iron crucible is placed in the evaporator room of sealing; Evaporator room is evacuated to 10Pa, charges into gas mixture that 95% argon gas, 5% oxygen form then and make air pressure in the evaporator room to 200Pa;
(2) connect electrode at the two ends of crucible, import big electric current, make the crucible heating; The crucible that is heated heats the glass powder in the crucible; Continue making current to glass powder and melt, after the fusing of the centre of glass powder, i.e. the size of control current; Make glass powder be in keeping warm mode, introducing power from the top of evaporator room simultaneously is the CO of 800W
2Laser, the laser scioptics are injected the melt at crucible top, and spot diameter is Φ 4mm, and the laser of injecting rises and gasification the melt temperature that is positioned at the crucible top rapidly;
(3) introduce in the trap that is used to capture with condensation from a side of evaporator room evaporating the steam that; And constantly in evaporator room, charge into the gas mixture that 95% argon gas, 5% oxygen are formed through valve from another side of evaporator room; Keeping the liquid level of valve and melt is 50mm; And the gas mixture that charges into blows to trap with the steam of evaporation, and the air pressure of keeping when charging into gas mixture in the evaporator room is 200Pa;
(4) in trap, collect the steam and the condensation of evaporating, obtain nano level glass powder, constantly extract gas mixture out from the opposite side of trap simultaneously, make the air pressure in evaporator room and the trap maintain 200Pa.When treating that the interior melt of crucible evaporates, stop to inject laser, and stop the gas mixture in the evaporator room is taken out in the crucible energising, treat that crucible slowly cools off.
The productive rate of the nano-glass powder that goes out through method for preparing is 11g/h, and the pattern through the said nano-glass powder of electron microscope observation and taking pictures, and records the granularity of powder with computingmachine image statistics analysis mode; Its particle size range is 10～100nm, and wherein, the diameter of 1% nano-glass powder is 10nm～20nm; The diameter of 1% nano-glass powder is 20nm～30nm; The diameter of 2% nano-glass powder is 30nm～40nm, and the diameter of 9% nano-glass powder is 40nm～50nm, and the diameter of 21% nano-glass powder is 50nm～60nm; The diameter of 33% nano-glass powder is 60nm～70nm; The diameter of 25% nano-glass powder is 70nm～80nm, and the diameter of 6% nano-glass powder is 80nm～90nm, and the diameter of 2% nano-glass powder is 90nm～100nm.
This nano-glass powder is used to prepare the electrode of solar battery ink jet ink for printing, during proportioning, comprises following component in the said ink by mass percentage: 52% nano metal powder, 2% nano-glass powder, 45% organic carrier and 1% auxiliary agent.Said nano metal powder comprises one or more in Ag powder, Au powder, the Al powder; Said organic carrier is resin, the for example TKK 021 that is dissolved in the solvent, also can use mixture, hydroxyl resin, the polymethyl acrylic acid of lower alcohol and the monobutyl ether of glycolmonoacetate of Type 3U, wood rosin, TKK 021 and resol to substitute.Solvent is organic solvent commonly used, for example lower alcohols, rudimentary ethers, rudimentary ketone etc.
Said auxiliary agent comprises easers such as gelifying agent, tensio-active agent.
Need to prove that those skilled in the art can also very simply expect other embodiment to the above embodiments, and through simply repeatedly experiment, just can access some improvement.But no matter how to improve,, belong to the protection domain of this patent as long as these technical schemes in concept of the present invention, should be equal to the technical scheme of this patent.
Claims (10)
1. nano-glass powder, said glass powder is made up of MOX, and the particle size range of said nano-glass powder is 1～100nm, and the size distribution of nano-glass powder that wherein accounts for gross weight 30%～70% is at 10～60nm.
2. nano-glass powder according to claim 1 is characterized in that, by weight percentage, this glass powder comprises following component:
SiO
2：0％～30％；
B
2O
3：0％～35％；
P
2O
5：0％～10％；
Alkali-metal oxide compound: 5%～35%;
The oxide compound of earth alkali metal: 0%～5%;
Al
2O
3：0％～15％；
ZnO：0％～35％：
Wherein, SiO
2, B
2O
3And P
2O
5The summation of weight percent is greater than 30%.
3. nano-glass powder according to claim 2 is characterized in that, preferred, by weight percentage, this glass powder comprises following component:
SiO
2：5％～25％；
B
2O
3：5％～25％；
P
2O
5：3％～8％；
Alkali-metal oxide compound: 5%～15%;
Al
2O
3：0％～10％；
ZnO：20％～35％。
4. according to claim 2 or 3 described nano-glass powder, it is characterized in that said alkali-metal oxide compound comprises Na
2O, Li2O and K
2Among the O one or more, wherein, Na
2O in alkalimetal oxide shared weight percent greater than 40%.
5. a method for preparing the arbitrary said nano-glass powder of claim 1～3 is characterized in that, this method comprises the steps:
To place anti-pyritous crucible more than 1000 ℃ by the frit that MOX is formed; And this crucible is placed in the evaporator room of sealing; Evaporator room is evacuated to below the 10Pa, and the gas mixture that charges into rare gas element and oxygen then makes air pressure to the 200～6000Pa in the evaporator room;
Glass powder in the crucible is heated to fusing, and introducing power is that the laser of 800W～1800W rises and gasification melt temperature rapidly;
The steam and the condensation that evaporated in collection, obtains nano level glass powder.
6. according to the said method for preparing the nano-glass powder of claim 5, it is characterized in that further, this method comprises:
Introducing power from the top of evaporator room is the CO of 800W～1800W
2Laser makes the frit melt gasification that is positioned at the crucible top;
Introduce in the trap that is used to capture with condensation from a side of evaporator room evaporating the steam that; And constantly in evaporator room, charge into the gas mixture of rare gas element and oxygen through valve from another side of evaporator room; Keeping the liquid level of valve and melt is 50mm～100mm; And the rare gas element that charges into and the gas mixture of oxygen blow to trap with the steam of evaporation, and the air pressure of keeping simultaneously in the evaporator room is 200Pa～6000Pa.
7. according to claim 5 or the 6 said methods that prepare the nano-glass powder, it is characterized in that, adopt resistance heater that the glass powder in the crucible is heated.
8. according to claim 5 or the 6 said methods that prepare the nano-glass powder, it is characterized in that more excellent, the air pressure of said evaporator room is 1000Pa, the proportioning of gas mixture is 95% argon gas, 5% oxygen mix.
9. according to claim 5 or the 6 described methods that prepare the nano-glass powder, it is characterized in that the frit that MOX is formed is that particle diameter is the glass powder of 1 μ m～10mm.
10. purposes like the arbitrary said nano-glass powder of claim 1～3; This nano-glass powder is used to prepare the electrode of solar battery ink jet ink for printing; It is characterized in that; By mass percentage, comprise 50%～70% nano metal powder, 2%～15% nano-glass powder, 20%～45% organic carrier and 0%～1% modified additive in the said slurry.
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| CN109036753A (en) * | 2018-07-02 | 2018-12-18 | 四川大学 | A kind of amorphous nano-crystalline composite magnetic powder core and preparation method thereof |
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| US20080318757A1 (en) * | 2007-06-19 | 2008-12-25 | Cabot Corporation | Nanoglass and flame spray processes for producing nanoglass |
| CN101434454A (en) * | 2007-11-13 | 2009-05-20 | 飞诺迪显示电子有限公司 | Dielectric medium powder for display |
| CN101796650A (en) * | 2007-08-31 | 2010-08-04 | 费罗公司 | Layered contact structure for solar cells |
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| US20080044488A1 (en) * | 2004-05-29 | 2008-02-21 | Jose Zimmer | Nano Glass Powder and Use Thereof, in Particular Multicomponent Glass Powder with a Mean Particle Size of Less Than 1 µm |
| US20080318757A1 (en) * | 2007-06-19 | 2008-12-25 | Cabot Corporation | Nanoglass and flame spray processes for producing nanoglass |
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