CN104692668A - Rapid crystallization glass powder for positive electrode paste of solar cell - Google Patents
Rapid crystallization glass powder for positive electrode paste of solar cell Download PDFInfo
- Publication number
- CN104692668A CN104692668A CN201510070453.6A CN201510070453A CN104692668A CN 104692668 A CN104692668 A CN 104692668A CN 201510070453 A CN201510070453 A CN 201510070453A CN 104692668 A CN104692668 A CN 104692668A
- Authority
- CN
- China
- Prior art keywords
- glass powder
- pbo
- bao
- component
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract description 91
- 239000000843 powder Substances 0.000 title claims abstract description 59
- 238000002425 crystallisation Methods 0.000 title abstract description 11
- 230000008025 crystallization Effects 0.000 title abstract description 11
- 239000002003 electrode paste Substances 0.000 title abstract 2
- 239000002002 slurry Substances 0.000 claims description 34
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 25
- 229910052796 boron Inorganic materials 0.000 claims description 25
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 17
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 12
- 239000000377 silicon dioxide Substances 0.000 abstract description 6
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002667 nucleating agent Substances 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 31
- 229910052709 silver Inorganic materials 0.000 description 23
- 239000004332 silver Substances 0.000 description 23
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 16
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 16
- 238000002360 preparation method Methods 0.000 description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
- 229910052710 silicon Inorganic materials 0.000 description 14
- 239000010703 silicon Substances 0.000 description 14
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 239000000758 substrate Substances 0.000 description 10
- 238000005245 sintering Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000011267 electrode slurry Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910018557 Si O Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000005118 spray pyrolysis Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- LAJZODKXOMJMPK-UHFFFAOYSA-N tellurium dioxide Chemical compound O=[Te]=O LAJZODKXOMJMPK-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C12/00—Powdered glass; Bead compositions
-
- 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
-
- 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 invention discloses rapid crystallization glass powder for positive electrode paste of a solar cell. The rapid crystallization glass powder comprises the following components in percentage by mass: 15%-55% of PbO, 10%-25% of PeO2, 5%-15% of B2O3, 7%-20% of Al2O3, 3%-15% of BaO, 6%-25% of P2O5, 4%-10% of Na2O, 3%-18% of SiO2 and 1%-25% of a nucleating agent. Through a method for adding partial nucleating agent to a traditional glass system, the performance of the glass powder can be effectively improved; and the transfer efficiency of the solar cell is obviously improved; and series resistance is reduced.
Description
Invention field
The present invention relates to a kind of front electrode of solar battery slurry fast crystallization type glass powder.
Technical background
Conventional silicon (Si) based solar battery after electric slurry silk screen printing, carries out sintering by the silicon chip generated after pn ties to be prepared from.As everyone knows, in semiconducter device, the potential difference of pn knot can by the hole-electron by external energy source excitation to being separated, the movement in electronics and hole creates the electric current that externally circuit transmits electric power, and therefore the quality of electrode contact directly determines the performance of silica-based solar cell.
The formation of electrode contact be electric slurry and silica-based between the process of complex interaction effect, conventional electric slurry is primarily of conductive agent silver powder, organic solvent, and glass powder and other additives are formed.It is generally acknowledged that in electric slurry component, glass powder serves vital effect in the forming process of electrode.Glass powder mainly comprises leaded and other low-melting components obtain about 300 to 700 DEG C softening temperature by it.In the sintering process of battery, first plumbous and leaded material can carry out reaction with silicon nitride layer and generate plumbous simple substance, and following plumbous simple substance and silver powder generate argentalium alloy, along with the phase-splitting of temperature cooled alloy, form sizeable silver at silicon substrate surface brilliant, electrical contact is formed thus.Interface after whole end of processing can by multiple phase composite: the silver in substrate silicon is brilliant, silver precipitation in insulating glass layer and glass coating, and the bulk silver after having sintered.Therefore, contacting mechanism is divided into two kinds of forms, and silver is brilliant directly forms the penetration of electrons glass coating that ohmic contact and tunnel effect cause with the block silver of sintering.The mechanism of generally acknowledging so far biases toward the tunnel effect of glass coating, and the thickness of the glass coating of therefore silicon substrate surface formation determines the height of contact resistance.
Glass powder plays conclusive effect in the formation of solar cell sintering process to emitting electrode, first in glass powder, leaded thing and SiNx layer react, the plumbous simple substance generated and Argent grain form argentalium alloy, in process of cooling, the phase-splitting of argentalium alloy, silver crystals growth is at silicon substrate surface, and deposition of layers of glass is at silicon substrate surface.If silver-colored brilliant size is comparatively large, pn knot may pierce through, battery drain; When glass coating is thicker, the brilliant electronics collected of silver cannot carry out effective transmission by tunnel effect and cause cell series resistance too high, and battery efficiency declines.The brilliant size of silver mainly contacts relevant with the glass powder of maintenance soft state for a long time with silver powder.Time is long, and silver-colored brilliant size is large affects battery efficiency, and glass coating thickness also can become large simultaneously, reduces the occurrence probability of tunnel effect.
Summary of the invention
The object of this invention is to provide a kind of fast crystallization type glass powder, its can control in the process of silicon solar cell sintering silica-based on generate the size of silver-colored brilliant size and sintering silver bullion and silica-based between the thickness of glass coating, impel the contact optimization of formation, promote the efficiency of silicon solar cell, reduce production cost.
Implementation procedure of the present invention is as follows:
A kind of front electrode of solar battery slurry glass powder, its component and weight percentage are:
15～55% PbO 10～25%TeO
25～15%B
2O
37～20%Al
2O
33～15%BaO 6～25%P
2O
5 4～10%Na
2O 3～18%SiO
2
And weight percentage is the component Fe being at least selected from one of following seven kinds of components of 1 ~ 25%
2o
3, Li
2o, Cr
2o
3, CaF
2, ZnO, ZrO
2, TiO
2, preferred weight percentage is 1 ~ 15%.
A kind of front electrode of solar battery slurry glass powder, its component and weight percentage are:
15～55% PbO 10～25%TeO
25～15%B
2O
37～20%Al
2O
33～15%BaO 6～25%P
2O
5 4～10%Na
2O 3～18%SiO
2
And weight percentage is the component Fe being at least selected from following seven kinds of components two of 5 ~ 15%
2o
3, Li
2o, Cr
2o
3, CaF
2, ZnO, ZrO
2, TiO
2.
A kind of front electrode of solar battery slurry glass powder, its component and weight percentage are:
20～50% PbO 15～25%TeO
25～10%B
2O
37～15%Al
2O
35～10%BaO 6～15%P
2O
55～10%Na
2O 5～15%SiO
2
And weight percentage is the component Fe being at least selected from one of following seven kinds of components of 1 ~ 25%
2o
3, Li
2o, Cr
2o
3, CaF
2, ZnO, ZrO
2, TiO
2, preferred weight percentage is 1 ~ 15%.
A kind of front electrode of solar battery slurry glass powder, its component and weight percentage are: 15 ~ 55% PbO 10 ~ 25%TeO
25 ~ 15%B
2o
37 ~ 20%Al
2o
33 ~ 15%BaO, 6 ~ 25%P
2o
54 ~ 10%Na
2o 3 ~ 18%SiO
21 ~ 5% CaF
2.
A kind of front electrode of solar battery slurry glass powder, its component and weight percentage are: 15 ~ 55% PbO 10 ~ 25%TeO
25 ~ 15%B
2o
37 ~ 20%Al
2o
33 ~ 15%BaO, 6 ~ 25%P
2o
54 ~ 10%Na
2o 3 ~ 18%SiO
21 ~ 5% Fe
2o
3.
A kind of front electrode of solar battery slurry glass powder, its component and weight percentage are: 15 ~ 55% PbO 10 ~ 25%TeO
25 ~ 15%B
2o
37 ~ 20%Al
2o
33 ~ 15%BaO, 6 ~ 25%P
2o
54 ~ 10%Na
2o 3 ~ 18%SiO
21 ~ 5% Cr
2o
3.
A kind of front electrode of solar battery slurry glass powder, its component and weight percentage are: 15 ~ 55% PbO 10 ~ 25%TeO
25 ~ 15%B
2o
37 ~ 20%Al
2o
33 ~ 15%BaO, 6 ~ 25%P
2o
54 ~ 10%Na
2o 3 ~ 18%SiO
21 ~ 5% ZrO
2.
A kind of preferred front electrode of solar battery slurry glass powder, its component and weight percentage are: 37%PbO, 15%TeO
2, 8%B
2o
3, 6%Al
2o
3, 6%BaO, 6%P
2o
5, 6%Na
2o, 10%SiO
2, 3%Fe
2o
3, 3%TiO
2, or 37%PbO, 15%TeO
2, 8%B
2o
3, 4.5%Al
2o
3, 4.5%BaO, 4.5%P
2o
5, 4.5%Na
2o, 10%SiO
2, 3%Fe
2o
3, 3%TiO
2, 3%Li
2o, 3%Cr
2o
3, or 37%PbO, 15%TeO
2, 8%B
2o
3, 2.25%Al
2o
3, 2.25%BaO, 2.25%P
2o
5, 2.25%Na
2o, 10%SiO
2, 3%Fe
2o
3, 3%TiO
2, 3%Li
2o, 3%Cr
2o
3, 3%ZnO, 3%CaF
2, 3%ZrO
2.
The preparation of glass powder can adopt conventional water quenching method, specific as follows, required various components proportionally being mixed is positioned in platinum alloy crucibles, in 1000 ~ 1600 DEG C of fusings 10 ~ 30 minutes until form homogeneous phase molten mass in retort furnace, then it is poured onto rapidly in deionized water and obtains required glass block, the glass block ball milling obtained obtained the glass powder that median size is 0.5 ~ 4 μm, dries, sieve for the preparation of solar cell front side silver paste material.Also other mode can be adopted to carry out the synthesis of glass.Such as, sol-gel method, spray pyrolysis method or other similar methods reach identical object.
The present invention take Pb-Te-B-Al-Ba-P-Na-Si-O as traditional glass system, adds on this basis can be allowed to condition at rapid crystallization in process of cooling and reduce and the related component of silver powder duration of contact and nucleator, as CaF
2, Fe
2o
3, Cr
2o
3and ZrO
2, ZnO, TiO
2, Li
2o or other compound etc. of nucleus can be provided.It is known that the new type functional glass powder of preparation and Pb-Te-B-Al-Ba-P-Na-Si-O system glass powder carry out contrast, its advantage is the rapid crystallization occurred in the process of glass powder sintering cooling centered by nucleus, cause freezing thus preventing its continuation at the deposition growing of silicon substrate surface of glass coating, also cut off the continued growth that silicon substrate surface silver is brilliant simultaneously, reach the dual purpose controlling glass coating thickness and the brilliant size of silver.Some silver precipitations that can not deposit to silicon substrate surface in time also can be frozen in glass coating, add the tunnel effect occurrence probability of glass coating.Therefore effectively can improve the performance of glass powder by the method for adding portion nucleator in traditional glass system, the efficiency of conversion significantly improving solar cell reduces series resistance.
Accompanying drawing explanation
Fig. 1 is the silicon substrate surface pattern Electronic Speculum figure that the solar battery sheet being printed with slurry prepared by glass I obtains after removing grid line, glass coating, silver-colored crystalline substance;
Fig. 2 is the Electronic Speculum figure after the cell piece process of the slurry being printed with glass III preparation;
Fig. 3 is the Electronic Speculum figure after the cell piece process of the slurry being printed with glass V preparation.
Embodiment
Embodiment 1 prepares glass powder I
Weigh 37%PbO, 15%TeO
2, 8%B
2o
3, 7.5%Al
2o
3, 7.5%BaO, 7.5%P
2o
5, 7.5%Na
2o, 10%SiO
2be placed in platinum crucible, in 1000 ~ 1600 DEG C of fusings 10 ~ 30 minutes until form homogeneous phase molten mass in retort furnace, then it is poured onto rapidly in deionized water and obtains required glass block, the glass block ball milling obtained is obtained the glass powder that median size is 0.5 ~ 4 μm, dries, sieving obtains the preparation of traditional glass powder I for solar cell front side silver paste material.
Embodiment 2 prepares glass powder II
Weigh 37%PbO, 15%TeO
2, 8%B
2o
3, 6%Al
2o
3, 6%BaO, 6%P
2o
5, 6%Na
2o, 10%SiO
2wherein add two kinds of nucleator 3%Fe
2o
3, 3%TiO
2adopt and obtain the preparation of glass powder II for solar cell front side silver paste material with the preparation method that embodiment 1 is identical.
Embodiment 3 prepares glass powder III
Weigh 37%PbO, 15%TeO
2, 8%B
2o
3, 4.5%Al
2o
3, 4.5%BaO, 4.5%P
2o
5, 4.5%Na
2o, 10%SiO
2wherein add four kinds of nucleator 3%Fe
2o
3, 3%TiO
2, 3%Li
2o, 3%Cr
2o
3adopt and obtain the preparation of glass powder III for solar cell front side silver paste material with the preparation method that embodiment 1 is identical.
Embodiment 4 prepares glass powder IV
Weigh 37%PbO, 15%TeO
2, 8%B
2o
3, 3.75%Al
2o
3, 3.75%BaO, 3.75%P
2o
5, 3.75%Na
2o, 10%SiO
2wherein add five kinds of nucleator 3%Fe
2o
3, 3%TiO
2, 3%Li
2o, 3%Cr
2o
3, 3%ZnO adopt obtain the preparation of glass powder IV for solar cell front side silver paste material with the preparation method that embodiment 1 is identical.
Embodiment 5 prepares glass powder V
Weigh 37%PbO, 15%TeO
2, 8%B
2o
3, 2.25%Al
2o
3, 2.25%BaO, 2.25%P
2o
5, 2.25%Na
2o, 10%SiO
2wherein add seven kinds of nucleator 3%Fe
2o
3, 3%TiO
2, 3%Li
2o, 3%Cr
2o
3, 3%ZnO, 3%CaF
2, 3%ZrO2 adopt obtain the preparation of glass powder V for solar cell front side silver paste material with the preparation method that embodiment 1 is identical.
The preparation of embodiment 6 front electrode slurry and the test and comparison of battery parameter
The test of glass melting point adopts DTA or DSC/TG, and its melting temperature is within 320 ~ 760 DEG C of scopes.Front electrode slurry used for solar batteries is formed primarily of following several composition, the silver powder as conductive phase, the glass powder as binding agent, as the organic carrier and the thinner that carry agent.Because special emphasis of the present invention is glass powder, as long as so silver powder and organic carrier meet the present invention be all suitable.
In table 2, sequence number 1-5 represents embodiment 1-5.
Take appropriate organic carrier and be placed in stainless steel vessel, select different functional glass powder and silver powder to carry out uniformly mixing 10-15 minute.Be placed into by mixture on three-roll grinder and carry out repeat-rolling, pressure is increased to 500psi gradually from 0.Gap between roller and roller is adjusted to 1 mil.Final employing mesh-of-grind (FOG) judges the quality of slurry, in general starches FOG value between 20/10 for front electrode of solar battery silver.The adjustment of last slurry viscosity needs the consumption controlling thinner, and general control is between 150 ~ 380Pas, and thixotropy index is 4.0 ~ 8.0.Frit of different nature is for purposes of the invention main component, glass powder I ~ V is prepared five kinds of different types of electrode slurrys to carry out the contrast of battery efficiency.
These five kinds of solar battery electrode slurries are printed on the polycrystalline silicon battery plate of 156 × 156cm by the mode of silk screen printing, the infrared chain-type sintering furnace setting parameter sinters.Adopt the parameter of business IV tester to cell piece to measure, IV tester can simulate the solar radiation under some strength.The data obtained is electric current I and voltage V, therefore draws out I-V curve, calculates battery efficiency (E
fF), packing factor (FF), series resistance (R
s) and shunting resistance (R
sh).The sign of electrode microtexture adopts scanning electronic microscope.
Embodiment 1 is implemented as a comparison, the electric slurry and traditional glass powder electric slurry with rapid crystallization glass powder is contrasted, the excellence of outstanding glass powder performance of the present invention.Also the component with different nucleation capability is effectively contrasted simultaneously, prepare the electrode slurry that solar cell can be allowed to obtain optimum performance parameters.Table 1 presents the proportioning of each embodiment, and table 2 is corresponding battery performance parameter.
Contrast as can be seen from table, the battery parameter printed containing having rapid crystallization quality glass powder slurry is obviously excellent in traditional glass slurry, when limiting the plumbous oxide played a major role in glass powder, tellurium dioxide, after boron oxide content, along with the kind of nucleator of adding and increasing of content, short-circuit current and the open circuit voltage of battery increase thereupon, simultaneously packing factor increase the effect also better serving extending battery life with the decline of series resistance, and the reduction of string resistance also better describes in battery and better defines ohmic contact, the thickness of glass coating reduces, the occurrence probability increase etc. of tunnel effect.
As can be seen from Electronic Speculum Fig. 1 also, be printed with the cell piece of traditional glass slurry after removing grid line, glass coating and silver crystalline substance, the pit left on silica-based is obviously large and dark than the vestige had left by rapid crystallization glass paste, and the brilliant size of larger silver often pierces through pn knot and causes battery drain, reduce the correlation performance parameters of battery.Increasing along with nucleation dosage and kind can be found out from Electronic Speculum Fig. 2 and 3, the pit of silicon substrate surface reduces gradually, can infer, in glass powder, nucleator is in the process of sintering cooling emitting electrode formation, well inhibit the growth that silver is brilliant, result in formation of better metallizing, decrease the generation of leaky.Functional glass material prepared by the present invention compensate for the related defects of traditional glass powder, improves the efficiency of solar cell, greatly reduces the production cost of battery.
Claims (10)
1. a front electrode of solar battery slurry glass powder, its component and weight percentage are:
15～55% PbO 10～25%TeO
25～15%B
2O
37～20%Al
2O
33～15%BaO 6～25%P
2O
5 4～10%Na
2O 3～18%SiO
2
And weight percentage is the component Fe being at least selected from one of following seven kinds of components of 1 ~ 25%
2o
3, Li
2o, Cr
2o
3, CaF
2, ZnO, ZrO
2, TiO
2.
2. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are:
15～55% PbO 10～25%TeO
25～15%B
2O
37～20%Al
2O
33～15%BaO 6～25%P
2O
5 4～10%Na
2O 3～18%SiO
2
And weight percentage is the component Fe being at least selected from following seven kinds of components two of 5 ~ 15%
2o
3, Li
2o, Cr
2o
3, CaF
2, ZnO, ZrO
2, TiO
2.
3. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are:
20～50% PbO 15～25%TeO
25～10%B
2O
37～15%Al
2O
35～10%BaO 6～15%P
2O
55～10%Na
2O 5～15%SiO
2
And weight percentage is the component Fe being at least selected from one of following seven kinds of components of 1 ~ 25%
2o
3, Li
2o, Cr
2o
3, CaF
2, ZnO, ZrO
2, TiO
2.
4. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are: 15 ~ 55% PbO 10 ~ 25%TeO
25 ~ 15%B
2o
37 ~ 20%Al
2o
33 ~ 15%BaO, 6 ~ 25%P
2o
54 ~ 10%Na
2o 3 ~ 18%SiO
21 ~ 5% CaF
2.
5. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are: 15 ~ 55% PbO 10 ~ 25%TeO
25 ~ 15%B
2o
37 ~ 20%Al
2o
33 ~ 15%BaO, 6 ~ 25%P
2o
54 ~ 10%Na
2o 3 ~ 18%SiO
21 ~ 5% Fe
2o
3.
6. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are: 15 ~ 55% PbO 10 ~ 25%TeO
25 ~ 15%B
2o
37 ~ 20%Al
2o
33 ~ 15%BaO, 6 ~ 25%P
2o
54 ~ 10%Na
2o 3 ~ 18%SiO
21 ~ 5% Cr
2o
3.
7. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are: 15 ~ 55% PbO 10 ~ 25%TeO
25 ~ 15%B
2o
37 ~ 20%Al
2o
33 ~ 15%BaO, 6 ~ 25%P
2o
54 ~ 10%Na
2o 3 ~ 18%SiO
21 ~ 5% ZrO
2.
8. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are: 37%PbO, 15%TeO
2, 8%B
2o
3, 6%Al
2o
3, 6%BaO, 6%P
2o
5, 6%Na
2o, 10%SiO
2, 3%Fe
2o
3, 3%TiO
2.
9. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are: 37%PbO, 15%TeO
2, 8%B
2o
3, 4.5%Al
2o
3, 4.5%BaO, 4.5%P
2o
5, 4.5%Na
2o, 10%SiO
2, 3%Fe
2o
3, 3%TiO
2, 3%Li
2o, 3%Cr
2o
3.
10. front electrode of solar battery slurry glass powder according to claim 1, its component and weight percentage are: 37%PbO, 15%TeO
2, 8%B
2o
3, 2.25%Al
2o
3, 2.25%BaO, 2.25%P
2o
5, 2.25%Na
2o, 10%SiO
2, 3%Fe
2o
3, 3%TiO
2, 3%Li
2o, 3%Cr
2o
3, 3%ZnO, 3%CaF
2, 3%ZrO
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070453.6A CN104692668B (en) | 2015-02-11 | 2015-02-11 | Rapid crystallization glass powder for positive electrode paste of solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070453.6A CN104692668B (en) | 2015-02-11 | 2015-02-11 | Rapid crystallization glass powder for positive electrode paste of solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104692668A true CN104692668A (en) | 2015-06-10 |
| CN104692668B CN104692668B (en) | 2017-04-12 |
Family
ID=53340274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510070453.6A Active CN104692668B (en) | 2015-02-11 | 2015-02-11 | Rapid crystallization glass powder for positive electrode paste of solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104692668B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495496A (en) * | 2017-01-03 | 2017-03-15 | 四川东树新材料有限公司 | For preparing glass dust and the preparation method of PERC silicon solar cell backs face silver paste |
| WO2018201375A1 (en) * | 2017-05-04 | 2018-11-08 | 无锡帝科电子材料股份有限公司 | Glass powder used for fabricating photovoltaic cell electrode, paste composition comprising same, photovoltaic cell electrode, and photovoltaic cell |
| CN111548021A (en) * | 2020-05-04 | 2020-08-18 | 上海匡宇科技股份有限公司 | Mixed glass powder and conductive silver paste prepared from same |
| WO2021016863A1 (en) * | 2019-07-30 | 2021-02-04 | 深圳市首骋新材料科技有限公司 | Conductive paste for semiconductor element, preparation method thereof and perc solar cell |
| CN114550971A (en) * | 2022-02-22 | 2022-05-27 | 上海银浆科技有限公司 | Silicon solar cell front conductive silver paste and preparation method thereof, silicon solar cell and front electrode for silicon solar cell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102947235A (en) * | 2010-05-04 | 2013-02-27 | E·I·内穆尔杜邦公司 | Thick-film pastes containing lead-tellurium-boron-oxides, and their use in the manufacture of semiconductor devices |
| WO2013109583A2 (en) * | 2012-01-16 | 2013-07-25 | Ferro Corporation | Non fire-through aluminum conductor reflector paste for back surface passivated cells with laser fired contacts |
| CN103681949A (en) * | 2012-08-30 | 2014-03-26 | E·I·内穆尔杜邦公司 | Use of conductive composition containing leadtellurium- based oxide in manufacture of semiconductor devices with lightly doped emitters |
| CN103915127A (en) * | 2013-01-03 | 2014-07-09 | 上海匡宇电子技术有限公司 | Front silver paste for high sheet resistance silicon-based solar cell and preparing method of front silver paste |
| CN104150777A (en) * | 2014-08-07 | 2014-11-19 | 贵阳晶华电子材料有限公司 | Tellurium-containing glass for solar positive electrode silver paste and preparation method of tellurium-containing glass |
-
2015
- 2015-02-11 CN CN201510070453.6A patent/CN104692668B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102947235A (en) * | 2010-05-04 | 2013-02-27 | E·I·内穆尔杜邦公司 | Thick-film pastes containing lead-tellurium-boron-oxides, and their use in the manufacture of semiconductor devices |
| WO2013109583A2 (en) * | 2012-01-16 | 2013-07-25 | Ferro Corporation | Non fire-through aluminum conductor reflector paste for back surface passivated cells with laser fired contacts |
| CN103681949A (en) * | 2012-08-30 | 2014-03-26 | E·I·内穆尔杜邦公司 | Use of conductive composition containing leadtellurium- based oxide in manufacture of semiconductor devices with lightly doped emitters |
| CN103915127A (en) * | 2013-01-03 | 2014-07-09 | 上海匡宇电子技术有限公司 | Front silver paste for high sheet resistance silicon-based solar cell and preparing method of front silver paste |
| CN104150777A (en) * | 2014-08-07 | 2014-11-19 | 贵阳晶华电子材料有限公司 | Tellurium-containing glass for solar positive electrode silver paste and preparation method of tellurium-containing glass |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495496A (en) * | 2017-01-03 | 2017-03-15 | 四川东树新材料有限公司 | For preparing glass dust and the preparation method of PERC silicon solar cell backs face silver paste |
| CN106495496B (en) * | 2017-01-03 | 2019-05-07 | 四川东树新材料有限公司 | It is used to prepare the glass powder and preparation method of PERC silicon solar cell back face silver paste |
| WO2018201375A1 (en) * | 2017-05-04 | 2018-11-08 | 无锡帝科电子材料股份有限公司 | Glass powder used for fabricating photovoltaic cell electrode, paste composition comprising same, photovoltaic cell electrode, and photovoltaic cell |
| WO2021016863A1 (en) * | 2019-07-30 | 2021-02-04 | 深圳市首骋新材料科技有限公司 | Conductive paste for semiconductor element, preparation method thereof and perc solar cell |
| CN112585765A (en) * | 2019-07-30 | 2021-03-30 | 深圳市首骋新材料科技有限公司 | Conductive paste for semiconductor element, preparation method thereof and PERC solar cell |
| CN112585765B (en) * | 2019-07-30 | 2022-09-27 | 深圳市首骋新材料科技有限公司 | Conductive paste for semiconductor element, preparation method thereof and PERC solar cell |
| CN111548021A (en) * | 2020-05-04 | 2020-08-18 | 上海匡宇科技股份有限公司 | Mixed glass powder and conductive silver paste prepared from same |
| CN114550971A (en) * | 2022-02-22 | 2022-05-27 | 上海银浆科技有限公司 | Silicon solar cell front conductive silver paste and preparation method thereof, silicon solar cell and front electrode for silicon solar cell |
| CN114550971B (en) * | 2022-02-22 | 2022-11-15 | 上海银浆科技有限公司 | Front conductive silver paste of silicon solar cell, preparation method of front conductive silver paste, silicon solar cell and front electrode for silicon solar cell |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104692668B (en) | 2017-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104692668B (en) | Rapid crystallization glass powder for positive electrode paste of solar cell | |
| US8778232B2 (en) | Lead-free conductive compound for solar cell electrodes | |
| JP5616002B2 (en) | Lithium ion conductive solid electrolyte and method for producing the same | |
| CN107721183B (en) | A kind of two-sided PERC back of solar cell electrode slurry glass powder and preparation method thereof | |
| CN106477897A (en) | Glass dust and apply this glass dust be obtained anelectrode silver paste, solaode | |
| CN104118992A (en) | Glass powder for solar high-sheet-resistance paste and preparation method thereof | |
| US20130298982A1 (en) | Glass composition and its use in conductive silver paste | |
| CN101597136A (en) | A kind of lead-free low-melting sealing glass and preparation method thereof | |
| CN109659064A (en) | A kind of front side silver paste material and its preparation process of the crystal silicon Perc battery with high-tensile strength | |
| JP2011258954A (en) | Use of glass for application to photovoltaic power generation | |
| US11634355B2 (en) | Ceramic glass powder and solar cell metallization paste containing ceramic glass powder | |
| CN104445962A (en) | Glass powder for solar high sheet resistance slurry and preparation method of glass powder | |
| WO2023124495A1 (en) | Glass powder for thick film silver paste adapting to crystalline silicon p+ layer contact and preparation method therefor | |
| CN104176939A (en) | Superfine lead-free glass powder for electrode slurry of solar battery, and preparation method thereof | |
| CN108352212B (en) | Method for forming conductor rails or coatings | |
| CN103693854B (en) | A kind of Unlead low-smelting point microcrystalline glass powder and preparation method thereof | |
| JP2015071504A (en) | Glass powder material | |
| CN113443833A (en) | Glass composition for front silver paste of crystalline silicon PERC battery and preparation method thereof | |
| CN104844004A (en) | Leadless glass powder for solar high-square resistance slurry, and preparation method thereof | |
| CN109493993B (en) | Silver paste for front electrode of crystalline silicon solar cell and preparation method thereof | |
| US10868200B2 (en) | Conductive paste and conductive track or coating | |
| JP2014007347A (en) | Paste composition for solar battery electrodes | |
| CN110255889B (en) | Glass composition for crystalline silicon solar double-side passivated PERC cell front silver paste and preparation method thereof | |
| CN104876448A (en) | Low-lead solar silver paste glass powder and preparation method thereof | |
| CN110342827A (en) | A kind of low temperature modification glass powder and its application in the dual layer passivation Perc battery of front |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |