CN102815870B - A kind of nano-glass powder and its production and use - Google Patents
A kind of nano-glass powder and its production and use Download PDFInfo
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- CN102815870B CN102815870B CN201110156471.8A CN201110156471A CN102815870B CN 102815870 B CN102815870 B CN 102815870B CN 201110156471 A CN201110156471 A CN 201110156471A CN 102815870 B CN102815870 B CN 102815870B
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- 238000007650 screen-printing Methods 0.000 description 9
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Abstract
The invention belongs to material chemistry technical field, relate to a kind of nano-glass powder, particularly to a kind of nano-glass powder and its production and use.A kind of nano-glass powder, described glass dust is made up of metal-oxide, and the particle size range of described nano-glass powder is 1～100nm, and the particle diameter of the nano-glass powder wherein accounting for gross weight 30%～70% is distributed in 10～60nm.The present invention prepares nano-glass powder by using Laser Resistance composite heating evaporation, the nano-glass powder productivity prepared is high, powder size is uniform, purity is high, the mean diameter of the nano-glass powder simultaneously prepared is less, effectively avoids because of the problem causing ink gun plug because being added with the bigger glass dust of particle diameter in traditional solaode marking ink.
Description
[technical field]
The invention belongs to material chemistry technical field, relate to a kind of nano-glass powder, receive particularly to one
Rice glass dust and its production and use.
[background technology]
In order to export the electric energy of silicon solar cell, it is necessary to make positive and negative two electrodes on battery.Electrode
It is exactly to form the conductive material of tight Ohmic contact with battery P-N junction two ends.At present, at solar cell
In production, mainly make solar cell by the technique of silk screen printing, silk screen printing be with
The template of image or pattern is attached on silk screen to carry out to print.Generally silk screen is by nylon, polyester, silk
Silk fabric or wire netting are made.When stock is placed directly in below the silk screen with template, screen printing
Brush ink or coating penetrate the mesh in the middle of silk screen under the extruding of scraper, are printed onto on stock.With
Screen printing technique constantly to improve, the electrode wires of silk screen printing has been able to reach the most tiny ground
Step, but over the past two years, gradually develop a kind of InkJet printing processes is applied to solar cell electrically connects
The technology connect, the silver paste conduction that the silver " ink " that InkJet printing processes uses uses than silk-screen printing technique
Property is much better than, and InkJet printing processes is the most accurate.Therefore, compared to silk-screen printing technique silver wire width
Degree reaches 100～125 μm, and the silver-colored conductor width that new technology is printed is much narrower, only 35～40 μm.Silver is used
The minimizing of amount also reduces cost.Additionally, due to the extinction area that narrower wire blocks is less, new work
Skill can also promote the performance of solar cell.And the great advantage of InkJet printing processes is not contact silicon chip,
It will not be applied pressure.This makes to utilize thinner silicon chip to be possibly realized.In tradition solar cell,
Silicon chip generally there are about 200 μ m-thick, and thinner silicon chip may rupture in screen printing process.And for
For non-contacting InkJet printing processes, it is not necessary to worry the thickness of silicon chip, 100 μm can be reached even
Lower.This means to save the silicon cost of 50%.
In silk-screen printing technique, the electrode wires of printing solar cell needs to use electrode slurry.Electrode slurry
Expect by raw materials such as metal dust, superfine glass powder, organic carrier and a small amount of modified additives by certain
Ratio forms, and metal dust is as conductive phase, and superfine glass powder is not as bonding phase, and they uniformly divide
It is dispersed in organic carrier.Palladium powder is to be fused through high temperature by the various oxides that can form glass,
Then shrend refinement obtains, and after adding palladium powder, can substantially reduce sintering peak temperature, make
Metal powder is forming metal grid lines after peak temperature, has stronger adhesive force with silicon chip.But due to right
For ink jet printing, the scope of the diameter of the nozzle of ink gun is at 10～60 microns, in order to avoid in spray
There is the situation of plug in ink when of printing, it is necessary to strictly limit the granule of material in ink, make as far as possible
Metal dust, frit and organic carrier granule in ink is less than 1 micron.Meanwhile, in order to avoid
Granule precipitation in ink, the particle diameter of actual requirement metal dust and frit is less than 100 nanometers.At present
The technology preparing nano metal powder is the most highly developed, but for frit, needs to prepare
The technology of nano level frit is also silent on current document, prepares nano level frit
The technology of the most critical of ink gun plug when being to avoid inkjet printing.
The Chinese invention patent of Application No. 200880104944.6 discloses a kind of for solaode
Layered contact structure, ink jet printing the first ink layer on silicon, described ink includes frit,
Described frit has the particle mean size of less than about 3 microns and about 200 DEG C～the glass transition temperature of 700 DEG C
Degree.Although the frit being mentioned to inside this patent in described electrically conductive ink can use to have and be less than
1000 nanometers, preferably less than about 100 nanometers, more preferably less than about 50 nanometers, still more preferably less than
The particle mean size of about 30 nanometers.But it does not the most record described nano level frit
How preparing, applicant retrieved other patents and scientific and technical literature data, there is presently no people and grinds
Study carefully the correlation technique to prepare nano-glass powder.
[summary of the invention]
In order to solve above-mentioned technical problem, the present invention proposes a kind of nano-glass powder and preparation method thereof
And purposes.The nano-glass powder productivity using the present invention to prepare is high, and epigranular, it is applied to spray
In the ink that ink prints, it is possible to the problem avoiding ink gun plug, also there is relatively low sintering temperature simultaneously,
Frit after sintering has preferable adhesive.
The concrete technical scheme of the present invention is as follows:
The present invention provides a kind of nano-glass powder, and described glass dust is made up of metal-oxide, described nanometer
The particle size range of glass dust is 1～100nm, wherein accounts for the grain of the nano-glass powder of gross weight 30%～70%
Footpath is distributed in 10～60nm.
By weight percentage, above-mentioned glass dust includes following component:
SiO2: 0%～30%；
B2O3: 0%～35%；
P2O5: 0%～10%；
Alkali-metal oxide: 5%～35%；
The oxide of alkaline-earth metal: 0%～5%；
Al2O3: 0%～15%；
ZnO:0%～35%；
Wherein, SiO2、B2O3And P2O5The summation of percentage by weight is more than 30%.
Preferably, by weight percentage, above-mentioned glass dust includes following component:
SiO2: 5%～25%；
B2O3: 5%～25%；
P2O5: 3%～8%；
Alkali-metal oxide: 5%～15%；
Al2O3: 0%～10%；
ZnO:20%～35%.
Above-mentioned alkali-metal oxide includes Na2O, Li2O and K2One or more in O, its
In, Na2Percentage by weight shared in alkali metal oxide for O is more than 40%.
The present invention also provides for a kind of method preparing above-mentioned nano-glass powder, it is characterised in that the method bag
Include following steps:
The frit being made up of metal-oxide is placed in the crucible of resistance to 1000 DEG C of high temperature above, and will
This crucible is placed in the vaporization chamber of closing, and vaporization chamber is evacuated to below 10Pa, is then charged with indifferent gas
The gaseous mixture of body and oxygen makes the air pressure in vaporization chamber to 200～6000Pa；
Glass dust in crucible is heated to fusing, introduces the laser that power is 800W～1800W and make melt
Temperature rises rapidly and gasifies；
Collect the steam evaporated and condense, obtaining nano level glass dust.
Further, said method includes:
The CO that power is 800W～1800W is introduced from the top of vaporization chamber2Laser, makes to be positioned at crucible top
The frit melt gasification in portion；
The steam evaporated is introduced in a catcher being used for trapping and condensation from a side of vaporization chamber,
And from another side of vaporization chamber by valve constantly to being filled with noble gas and oxygen in vaporization chamber
Gaseous mixture, keeping valve is 50mm～100mm with the liquid level of melt, and the indifferent gas being filled with
The steam of evaporation is blowed to catcher by the gaseous mixture of body and oxygen, and the air pressure in maintenance vaporization chamber is simultaneously
200Pa～6000Pa
The mode heating the glass dust in crucible is: use resistance heater to enter the glass dust in crucible
Row heating.
Preferably, the air pressure of above-mentioned vaporization chamber is 1000Pa.
Above-mentioned metal-oxide composition frit be particle diameter be the glass dust of 1 μm～10mm.
The present invention separately provides the purposes of a kind of such as above-mentioned nano-glass powder, and this nano-glass powder is for preparation too
Sun energy battery electrode ink jet ink for printing, it is characterised in that by mass percentage, in described slurry
Comprise nano-glass powder, 20%～45% organic of nano metal powder, 2%～15% of 50%～70%
Carrier and the modified additive of 0%～1%.
Useful the having the technical effect that of the present invention
The present invention is by using laser-resistance composite heating evaporation to prepare nano-glass powder, and for preparing receives
Rice glass dust productivity is high, powder size is uniform, and purity is high, putting down of the nano-glass powder simultaneously prepared
All particle diameters are less, effectively avoid because because being added with particle diameter in traditional solaode marking ink
Bigger glass dust and the problem that causes ink gun plug.
The present invention prepares, by using laser-resistance composite heating evaporation, the nanometer that nano-glass powder is prepared
Glass dust activity is big, and sintering temperature is low.
By the content of each component in reasonably regulation glass dust, the sintering temperature of nano-glass powder is made to reduce,
Frit after sintering can play the best simultaneously is bonding effect.
By the rational air pressure regulating vaporization chamber in preparation process and valve and the liquid level of melt,
The particle diameter making nano-glass powder is less, and relatively big compared with the content of whole nano-glass powder shared by small particle,
And productivity is the biggest.
By maintaining gaseous environment to contain certain density oxygen in evaporation process, it is to avoid nano-glass
Expect to decompose in fusing and evaporation process, also maintain certain pressure environment simultaneously, be conducive to relatively granule
The formation of the nano-glass powder in footpath.
[detailed description of the invention]
The preparation method that the present invention relates to a kind of nano-glass powder and the nanometer glass using the method to prepare
Glass powder and application thereof.By using laser-resistance composite heating evaporation to prepare nano-glass powder, prepare
Nano-glass powder productivity high, powder size uniform, purity is high, the nano-glass powder simultaneously prepared
Mean diameter less, effectively avoid because because being added with in traditional solaode marking ink
Glass dust that particle diameter is bigger and the problem that causes ink gun plug.
Below in conjunction with specific embodiment, the invention will be further elaborated:
Embodiment 1
A kind of nano-glass powder, this nano-glass powder is prepared via a method which to form:
(1) frit being made up of metal-oxide that particle diameter is 50 μm is placed in the straight of Φ 40 × 40
In barrel-shaped silica crucible, according to mass percent in described frit, including the SiO of 30%2, 35%
B2O3, the P of 5%2O5, the Na of 5%2O, the MgO of 5%, the Al of 15%2O3And 5%
ZnO, and described crucible is placed in the vaporization chamber of closing, vaporization chamber is evacuated to 10-1Pa, so
After be filled with the argon of 95%, the gaseous mixture of the oxygen composition of 5% makes air pressure in vaporization chamber to 1000Pa；
(2) two ends at crucible connect electrode, import big electric current, make crucible heat, and the crucible being heated will
Glass dust heating in crucible, continues to turn on electric current to glass powder, molten in the centre of glass dust
After change, i.e. control the size of electric current, make glass dust be in keeping warm mode, draw from the top of vaporization chamber simultaneously
Enter the CO that power is 1800W2Laser, laser injects the melt of crucible top by lens, and hot spot is straight
Footpath is Φ 5mm, and the laser injected makes the melt temperature being positioned at crucible top rise rapidly and gasify；
(3) steam evaporated is introduced a catcher being used for trapping and condensation from a side of vaporization chamber
In, and from another side of vaporization chamber by valve constantly to the argon being filled with 95% in vaporization chamber,
The gaseous mixture of the oxygen composition of 5%, keeping valve is 50mm with the liquid level of melt, and be filled with
The steam of evaporation is blowed to catcher by gaseous mixture, and maintain the air pressure in vaporization chamber is 1000Pa simultaneously；
(4) in catcher, collect the steam evaporated and condense, obtaining nano level glass dust, simultaneously
Constantly extract gaseous mixture out from the opposite side of catcher, make the air pressure in vaporization chamber and catcher maintain
1000Pa.When melt in crucible is evaporated, stops injecting laser, and stop crucible being energized,
Take out the gaseous mixture in vaporization chamber, treat crucible Slow cooling.
The productivity of the nano-glass powder prepared by said method is 400g/h, and passes through electron microscopic
The pattern of nano-glass powder described in sem observation is also taken pictures, and record by computer image statistics analysis mode
The granularity of powder, its particle size range is 1～100nm, wherein, the nano-glass powder of 10% a diameter of
1nm～20nm, a diameter of 20nm～30nm of the nano-glass powder of 35%, the nano-glass powder of 25%
A diameter of 30nm～40nm, a diameter of 40nm～50nm of the nano-glass powder of 20%, the nanometer of 2%
A diameter of 50nm～60nm of glass dust, a diameter of 60nm～70nm of the nano-glass powder of 2%, 2%
A diameter of 70nm～80nm of nano-glass powder, the nano-glass powder of 2% a diameter of
80nm～90nm, a diameter of 90nm～100nm of the nano-glass powder of 2%.
This nano-glass powder is used for preparing electrode of solar battery ink jet ink for printing, during proportioning, described
Ink comprises following component by mass percentage: the nano metal powder of 50%, the nanometer glass of 15%
Glass powder, the organic carrier of 34% and the auxiliary agent of 1%.Described nano metal powder includes Ag powder, Au
One or more in powder, Al powder, resin that described organic carrier is dissolved in solvent, such as ethyl
Cellulose, it is also possible to mixing of ethylhydroxyethylcellulose, wood rosin, ethyl cellulose and phenolic resin
The monobutyl ether of compound, hydroxyl resin, the polymethylacrylic acid of lower alcohol and ethylene monoacetate substitutes.
Solvent is conventional organic solvent, such as lower alcohols, rudimentary ethers, rudimentary ketone etc..
Described auxiliary agent includes the easer such as gel, surfactant.
Embodiment 2
A kind of nano-glass powder, this nano-glass powder is prepared via a method which to form:
(1) 11 parts of SiO by weight, are weighed2, 10 parts of B2O3, 10 parts of P2O5, 35 parts
Na2O, the Al of 15 parts2O3And after the electron level raw material mix homogeneously such as 19 parts of ZnO, it is placed in graphite material
In the crucible of matter, using plasma heating makes each oxide melt, until all melting and after mix homogeneously,
It is cooled into the glass state material of disordered structure, mills and form the thin glass dust that mean diameter is 100 μm
End；
(2) above-mentioned glass powder is placed in the straight barrel-shaped graphite crucible of Φ 40 × 40, and by described
Iron crucible is placed in the vaporization chamber of closing, and vaporization chamber is evacuated to 10Pa, be then charged with 95% argon,
The gaseous mixture of the oxygen composition of 5% makes air pressure in vaporization chamber to 6000Pa；
(2) two ends at crucible connect electrode, import big electric current, make crucible heat, and the crucible being heated will
Glass dust heating in crucible, continues to turn on electric current to glass powder, molten in the centre of glass dust
After change, i.e. control the size of electric current, make glass dust be in keeping warm mode, draw from the top of vaporization chamber simultaneously
Enter the CO that power is 1800W2Laser, laser injects the melt of crucible top by lens, and hot spot is straight
Footpath is Φ 5mm, and the laser injected makes the melt temperature being positioned at crucible top rise rapidly and gasify；
(3) steam evaporated is introduced a catcher being used for trapping and condensation from a side of vaporization chamber
In, and from another side of vaporization chamber by valve constantly to the argon being filled with 95% in vaporization chamber,
The gaseous mixture of the oxygen composition of 5%, keeping valve is 100mm with the liquid level of melt, and is filled with
Gaseous mixture the steam of evaporation is blowed to catcher, be filled with while gaseous mixture the air pressure maintained in vaporization chamber
For 6000Pa；
(4) in catcher, collect the steam evaporated and condense, obtaining nano level glass dust, simultaneously
Constantly extract gaseous mixture out from the opposite side of catcher, make the air pressure in vaporization chamber and catcher maintain
6000Pa.When melt in crucible is evaporated, stops injecting laser, and stop crucible being energized,
Take out the gaseous mixture in vaporization chamber, treat crucible Slow cooling.
The productivity of the nano-glass powder prepared by said method is 10g/h, and passes through ultramicroscope
Observe the pattern of described nano-glass powder and take pictures, and recording powder by computer image statistics analysis mode
The granularity at end, its particle size range is 20～100nm, wherein, the nano-glass powder of 0% a diameter of
1nm～20nm, a diameter of 20nm～30nm of the nano-glass powder of 1%, the nano-glass powder of 3% straight
Footpath is 30nm～40nm, a diameter of 40nm～50nm of the nano-glass powder of 10%, the nanometer glass of 20%
A diameter of 50nm～60nm of glass powder, a diameter of 60nm～70nm of the nano-glass powder of 32%, 25%
A diameter of 70nm～80nm of nano-glass powder, the nano-glass powder of 7% a diameter of
80nm～90nm, a diameter of 90nm～100nm of the nano-glass powder of 2%.
This nano-glass powder is used for preparing electrode of solar battery ink jet ink for printing, during proportioning, described
Ink comprises following component by mass percentage: the nano metal powder of 70%, the nanometer glass of 2%
Glass powder and the organic carrier of 28%.Described nano metal powder includes in Ag powder, Au powder, Al powder
Kind or multiple, resin that described organic carrier is dissolved in solvent, such as ethyl cellulose, it is also possible to
With the mixture of ethylhydroxyethylcellulose, wood rosin, ethyl cellulose and phenolic resin, hydroxyl resin,
The polymethylacrylic acid of lower alcohol and the monobutyl ether of ethylene monoacetate substitute.Solvent is conventional having
Machine solvent, such as lower alcohols, rudimentary ethers, rudimentary ketone etc..
Embodiment 3
A kind of nano-glass powder, this nano-glass powder is prepared via a method which to form:
(1) 5 parts of SiO by weight, are weighed2, 5 parts of B2O3, 5 parts of P2O5, the Na of 35 parts2O、
The Al of 15 parts2O3And after the electron level raw material mix homogeneously such as 35 parts of ZnO, it is placed in diamond material
In crucible, using plasma heating makes each oxide melt, until all melting and after mix homogeneously, cold
But form the glass state material of disordered structure, mill and form the thin glass powder that mean diameter is 1mm；
(2) above-mentioned glass powder is placed in the straight barrel-shaped iron crucible of Φ 40 × 40, and by described ferrum
Crucible is placed in the vaporization chamber of closing, and vaporization chamber is evacuated to 10Pa, be then charged with 95% argon,
The gaseous mixture of the oxygen composition of 5% makes air pressure in vaporization chamber to 200Pa；
(2) two ends at crucible connect electrode, import big electric current, make crucible heat, and the crucible being heated will
Glass dust heating in crucible, continues to turn on electric current to glass powder, molten in the centre of glass dust
After change, i.e. control the size of electric current, make glass dust be in keeping warm mode, draw from the top of vaporization chamber simultaneously
Enter the CO that power is 800W2Laser, laser injects the melt of crucible top, spot diameter by lens
For Φ 4mm, the laser injected makes the melt temperature being positioned at crucible top rise rapidly and gasify；
(3) steam evaporated is introduced a catcher being used for trapping and condensation from a side of vaporization chamber
In, and from another side of vaporization chamber by valve constantly to the argon being filled with 95% in vaporization chamber,
The gaseous mixture of the oxygen composition of 5%, keeping valve is 50mm with the liquid level of melt, and be filled with
The steam of evaporation is blowed to catcher by gaseous mixture, and while being filled with gaseous mixture, the air pressure in maintenance vaporization chamber is
200Pa；
(4) in catcher, collect the steam evaporated and condense, obtaining nano level glass dust, simultaneously
Constantly extract gaseous mixture out from the opposite side of catcher, make the air pressure in vaporization chamber and catcher maintain
200Pa.When melt in crucible is evaporated, stops injecting laser, and stop crucible being energized, take out
Fall the gaseous mixture in vaporization chamber, treat crucible Slow cooling.
The productivity of the nano-glass powder prepared by said method is 11g/h, and passes through ultramicroscope
Observe the pattern of described nano-glass powder and take pictures, and recording powder by computer image statistics analysis mode
The granularity at end, its particle size range is 10～100nm, wherein, the nano-glass powder of 1% a diameter of
10nm～20nm, a diameter of 20nm～30nm of the nano-glass powder of 1%, the nano-glass powder of 2%
A diameter of 30nm～40nm, a diameter of 40nm～50nm of the nano-glass powder of 9%, the nanometer of 21%
A diameter of 50nm～60nm of glass dust, a diameter of 60nm～70nm of the nano-glass powder of 33%,
A diameter of 70nm～80nm of the nano-glass powder of 25%, the nano-glass powder of 6% a diameter of
80nm～90nm, a diameter of 90nm～100nm of the nano-glass powder of 2%.
This nano-glass powder is used for preparing electrode of solar battery ink jet ink for printing, during proportioning, described
Ink comprises following component by mass percentage: the nano metal powder of 52%, the nanometer glass of 2%
Glass powder, the organic carrier of 45% and the auxiliary agent of 1%.Described nano metal powder include Ag powder, Au powder,
One or more in Al powder, resin that described organic carrier is dissolved in solvent, such as ethyl cellulose
Element, it is also possible to use ethylhydroxyethylcellulose, wood rosin, ethyl cellulose and the mixture of phenolic resin,
The monobutyl ether of hydroxyl resin, the polymethylacrylic acid of lower alcohol and ethylene monoacetate substitutes.Solvent is
Conventional organic solvent, such as lower alcohols, rudimentary ethers, rudimentary ketone etc..
Described auxiliary agent includes the easer such as gel, surfactant.
It should be noted that those skilled in the art can also the most simply expect for the above embodiments
Other embodiment, and by simple many experiments, it becomes possible to obtain some and improve.But no matter
How to improve, as long as these technical schemes are within the spirit and scope of the present invention, the skill of this patent should be equal to
Art scheme, belongs to the protection domain of this patent.
Claims (3)
1. a nano-glass powder, it is characterised in that: this nano-glass powder is to be prepared via a method which to form
:
(1) 11 parts of SiO by weight, are weighed2, 10 parts of B2O3, 10 parts of P2O5, 35 parts of Na2O, 15 parts
Al2O3And 19 parts of ZnO, described SiO2、B2O3、P2O5、Na2O、Al2O3, that ZnO is electron level is former
Material；After each raw material mix homogeneously, being placed in the crucible of graphite material, using plasma heating makes each oxygen
Compound melts, until all melting and after mix homogeneously, being cooled into the glass state material of disordered structure, mill
Form the thin glass powder that mean diameter is 100 μm；
(2) above-mentioned glass powder is placed in the straight barrel-shaped graphite crucible of Φ 40 × 40, and by described
Crucible is placed in the vaporization chamber of closing, and vaporization chamber is evacuated to 10Pa, be then charged with 95% argon, 5
The gaseous mixture of the oxygen composition of % makes air pressure in vaporization chamber to 6000Pa；
(3) two ends at crucible connect electrode, import big electric current, make crucible heat, and the crucible being heated is by earthenware
Glass dust heating in crucible, continues to turn on electric current to glass powder, after the centre of glass dust is melted,
I.e. controlling the size of electric current, make glass dust be in keeping warm mode, introduce power from the top of vaporization chamber be simultaneously
The CO of 1800W2Laser, laser injects the melt of crucible top by lens, and spot diameter is Φ 5mm, penetrates
The laser entered makes the melt temperature being positioned at crucible top rise rapidly and gasify；
(4) steam evaporated is introduced a catcher being used for trapping and condensation from a side of vaporization chamber
In, and from another side of vaporization chamber by valve constantly to the argon being filled with 95% in vaporization chamber, 5
The gaseous mixture of the oxygen composition of %, keeping valve is 100mm with the liquid level of melt, and the mixing being filled with
The steam of evaporation is blowed to catcher by gas, and maintaining the air pressure in vaporization chamber while being filled with gaseous mixture is 6000Pa；
(5) in catcher, collect the steam evaporated and condense, obtaining nano level glass dust, simultaneously from
The opposite side of catcher constantly extracts gaseous mixture out, makes the air pressure in vaporization chamber and catcher maintain
6000Pa；When melt in crucible is evaporated, stops injecting laser, and stop crucible being energized, take out
Fall the gaseous mixture in vaporization chamber, treat crucible Slow cooling.
2. nano-glass powder as claimed in claim 1, it is characterised in that: the particle diameter model of this nano-glass powder
Enclosing is 20～100nm, wherein, a diameter of 20nm～30nm of the nano-glass powder of 1%, the nano-glass of 3%
A diameter of 30nm～40nm of powder, a diameter of 40nm～50nm of the nano-glass powder of 10%, the nanometer glass of 20%
A diameter of 50nm～60nm of glass powder, a diameter of 60nm～70nm of the nano-glass powder of 32%, the nanometer of 25%
A diameter of 70nm～80nm of glass dust, a diameter of 80nm～90nm of the nano-glass powder of 7%, the nanometer of 2%
A diameter of 90nm～100nm of glass dust.
3. the purposes of nano-glass powder as claimed in claim 1, is used for preparing electrode of solar battery ink-jet and beats
Print ink, it is characterised in that: during proportioning, described ink comprises following component by mass percentage:
The nano metal powder of 50%, the nano-glass powder of 15%, the organic carrier of 34% and the auxiliary agent of 1%；
Described nano metal powder includes one or more in Ag powder, Au powder, Al powder；
Described organic carrier is dissolved in the resin in solvent, selects ethyl cellulose, ethyl-hydroxyethyl fiber
The mixture of element, wood rosin, ethyl cellulose and phenolic resin, hydroxyl resin, the polymethyl of lower alcohol
Acid or the monobutyl ether of ethylene monoacetate；
Described solvent is conventional organic solvent, selected from lower alcohols, rudimentary ethers or rudimentary ketone；
Described auxiliary agent includes gel or surfactant.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250701A (en) * | 1999-11-18 | 2000-04-19 | 华中理工大学 | Process and equipment for preparing superfine powder by heating and evaporation |
| 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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| DE102004026433A1 (en) * | 2004-05-29 | 2005-12-22 | Schott Ag | Nanoglass powder and its use |
| US8058195B2 (en) * | 2007-06-19 | 2011-11-15 | Cabot Corporation | Nanoglass and flame spray processes for producing nanoglass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1250701A (en) * | 1999-11-18 | 2000-04-19 | 华中理工大学 | Process and equipment for preparing superfine powder by heating and evaporation |
| CN101796650A (en) * | 2007-08-31 | 2010-08-04 | 费罗公司 | Layered contact structure for solar cells |
| CN101434454A (en) * | 2007-11-13 | 2009-05-20 | 飞诺迪显示电子有限公司 | Dielectric medium powder for display |
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