CN107216041A - Glass powder including its paste composition, electrode of solar battery and solar cell for preparing electrode of solar battery - Google Patents
Glass powder including its paste composition, electrode of solar battery and solar cell for preparing electrode of solar battery Download PDFInfo
- Publication number
- CN107216041A CN107216041A CN201710310870.2A CN201710310870A CN107216041A CN 107216041 A CN107216041 A CN 107216041A CN 201710310870 A CN201710310870 A CN 201710310870A CN 107216041 A CN107216041 A CN 107216041A
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- China
- Prior art keywords
- electrode
- glass powder
- solar battery
- oxides
- metal oxide
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 56
- 239000000843 powder Substances 0.000 title claims abstract description 53
- 239000011521 glass Substances 0.000 title claims abstract description 45
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 50
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 50
- 229910003069 TeO2 Inorganic materials 0.000 claims abstract description 5
- LAJZODKXOMJMPK-UHFFFAOYSA-N tellurium dioxide Chemical compound O=[Te]=O LAJZODKXOMJMPK-UHFFFAOYSA-N 0.000 claims abstract description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 14
- 239000000654 additive Substances 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 4
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002270 dispersing agent Substances 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 3
- 239000012963 UV stabilizer Substances 0.000 claims description 3
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 230000003078 antioxidant effect Effects 0.000 claims description 3
- 229910052681 coesite Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052682 stishovite Inorganic materials 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 229910052714 tellurium Inorganic materials 0.000 description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910000480 nickel oxide Inorganic materials 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000013008 thixotropic agent Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 239000001856 Ethyl cellulose Substances 0.000 description 3
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000004840 adhesive resin Substances 0.000 description 3
- 229920006223 adhesive resin Polymers 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001249 ethyl cellulose Polymers 0.000 description 3
- 235000019325 ethyl cellulose Nutrition 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- KZVBBTZJMSWGTK-UHFFFAOYSA-N 1-[2-(2-butoxyethoxy)ethoxy]butane Chemical compound CCCCOCCOCCOCCCC KZVBBTZJMSWGTK-UHFFFAOYSA-N 0.000 description 2
- OAYXUHPQHDHDDZ-UHFFFAOYSA-N 2-(2-butoxyethoxy)ethanol Chemical compound CCCCOCCOCCO OAYXUHPQHDHDDZ-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 229910052810 boron oxide Inorganic materials 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- CRWNQZTZTZWPOF-UHFFFAOYSA-N 2-methyl-4-phenylpyridine Chemical compound C1=NC(C)=CC(C=2C=CC=CC=2)=C1 CRWNQZTZTZWPOF-UHFFFAOYSA-N 0.000 description 1
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000896 Ethulose Polymers 0.000 description 1
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 1
- OHBRHBQMHLEELN-UHFFFAOYSA-N acetic acid;1-butoxybutane Chemical compound CC(O)=O.CCCCOCCCC OHBRHBQMHLEELN-UHFFFAOYSA-N 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- WUOACPNHFRMFPN-UHFFFAOYSA-N alpha-terpineol Chemical compound CC1=CCC(C(C)(C)O)CC1 WUOACPNHFRMFPN-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006121 base glass Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000005308 flint glass Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007603 infrared drying Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000320 mechanical mixture Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229940032007 methylethyl ketone Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000075 oxide glass Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- -1 phenolic aldehyde Chemical class 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- ONVGIJBNBDUBCM-UHFFFAOYSA-N silver;silver Chemical compound [Ag].[Ag+] ONVGIJBNBDUBCM-UHFFFAOYSA-N 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 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
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
-
- 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 a kind of glass powder including its paste composition, electrode of solar battery and solar cell for being used to prepare electrode of solar battery.Wherein, the glass powder includes 20~50wt% PbO, 31~70wt% TeO2, 0.1~7wt% IA family metal oxides, 0.1~7wt% Group IIA metal oxide and other oxides, and the mass ratio of IA family metal oxides and Group IIA metal oxide is 0.1~7:1, IA family metal oxide, the addition summation of Group IIA metal oxide and other described oxides in the glass powder are 1~25wt%.The electrode of solar battery prepared using the paste composition of the present invention, and welding have excellent bonding strength and minimize series resistance (Rs), so as to provide high conversion efficiency.
Description
Technical field
The present invention relates to technical field of solar cell manufacturing, it is used to prepare solar cell in particular to one kind
The glass powder of electrode including its paste composition, electrode of solar battery and solar cell.
Background technology
Solar cell changes the photon of sunshine using photovoltaic effect by p-n junction to produce electric energy.In solar energy
In battery, preceding electrode and rear electrode are formed in semiconductor wafer or the upper and lower surface of substrate with p-n junction respectively.Then, p-n
The photoelectric effect of knot is by the sun photoinduction into semiconductor wafer, and then the electronics produced by the photoelectric effect of p-n junction passes through
Electrode provides electric current to outside.Composition for electrodes is arranged on chip, then patterned and baking, forms solar cell
Electrode.
Solar battery efficiency is improved by the method for lasting reduction emitter stage thickness, shunting is likely to result on the contrary,
This will make the degradation of solar cell.In addition, solar cell has gradually increased area to improve efficiency.However,
In this case, it is understood that there may be due to the problem of efficiency declines caused by the increase of the contact resistance of solar cell.
Solar cell is connected to each other to constitute solar cell module by welding.At present, typical flint glass powder
The electrode of solar battery of composition manufacture inside and the bonding force of welding are not enough, and the low-adhesion between electrode and welding can be led
Cause the deterioration of high series resistance and conversion efficiency.
The content of the invention
The present invention is intended to provide a kind of glass powder including its paste composition for being used to prepare electrode of solar battery
Thing, electrode of solar battery and solar cell, to solve the bonding force of electrode of solar battery and welding in the prior art not
Foot, the low-adhesion between electrode and welding can cause the technical problem of the deterioration of high series resistance and conversion efficiency.
To achieve these goals, according to an aspect of the invention, there is provided a kind of be used to prepare solar cell electricity
The glass powder of pole.The glass powder includes 20~50wt% PbO, 31~70wt% TeO2, 0.1~7wt% IA races
The Group IIA metal oxide and other oxides of metal oxide, 0.1~7wt%, and IA family metal oxides and Group IIA gold
The mass ratio for belonging to oxide is 0.1~7:1, IA family metal oxide, Group IIA metal oxide and other oxides are in the glass
Addition summation in glass powder is 1~25wt%.
Further, IA family metal oxides are selected from by Li2O、Na2O and K2One or more in the group of O compositions.
Further, Group IIA metal oxide is one kind or many in the group being made up of MgO, CaO, SrO and BaO
Kind.
Further, other oxides are selected from by P2O5、B2O3、TiO2、WO3、NiO、SiO2In the group constituted with ZnO
It is one or more.
Further, the average grain diameter D50 of glass powder is 0.1~10 μm.
There is provided a kind of paste composition for being used to prepare electrode of solar battery according to another aspect of the present invention.Should
Paste composition includes 60~95wt% conductive powder, 1.0~20wt% organic carrier, 0.1~5wt% above-mentioned glass
Powder, and surplus additive.
Further, additive is selected from by dispersant, thixotropic agent, plasticizer, viscosity stabiliser, defoamer, pigment, UV
One or more in the group of stabilizer, antioxidant and coupling agent composition.
Further, conductive powder is silver powder.
There is provided a kind of electrode of solar battery according to a further aspect of the invention.The solar cell is by any of the above-described
The paste composition planted is prepared from.
There is provided a kind of solar cell, including electrode according to another aspect of the invention.The electrode is above-mentioned by this hair
The electrode of solar battery that bright paste composition is prepared from.
Using the present invention paste composition prepare electrode of solar battery, and welding have excellent bonding strength and
Minimize series resistance (Rs), so as to provide high conversion efficiency.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the signal of the solar cell of use paste composition manufacture middle according to an embodiment of the present invention
Figure.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
According to a kind of typical embodiment of the present invention, there is provided a kind of glass dust for being used to prepare electrode of solar battery
Material.The glass powder includes 20~50wt% PbO, 31~70wt% TeO2, 0.1~7wt% IA family metal oxides,
0.1~7wt% Group IIA metal oxide and other oxides, and the IA family metal oxides and Group IIA metal oxide
Mass ratio be 0.1~7:1, IA family metal oxide, Group IIA metal oxide and other described oxides are in glass powder
In addition summation be 1~25wt%.
Other oxides refer to the oxide in addition to IA family metal oxides and Group IIA metal oxide.
Using the present invention paste composition prepare electrode of solar battery, and welding have excellent bonding strength and
Minimize series resistance (Rs), so as to provide high conversion efficiency.
It is preferred that, IA family metal oxides are selected from by Li2O、Na2O and K2One or more in the group of O compositions；IIA
Family metal oxide is the one or more in the group being made up of MgO, CaO, SrO and BaO.
According to a kind of typical embodiment of the present invention, other oxides are selected from by P2O5、B2O3、TiO2、WO3、NiO、
SiO2One or more in the group constituted with ZnO.
According to a kind of typical embodiment of the present invention, there is provided for a kind of paste group for being used to prepare electrode of solar battery
Compound.The paste composition includes 60~95wt% conductive powder, 1.0~20wt% organic carrier, 0.1~5wt%
Above-mentioned glass powder, and surplus additive.Wherein, additive is selected from steady by dispersant, thixotropic agent, plasticizer, viscosity
Determine the one or more in the group of agent, defoamer, pigment, UV stabilizer, antioxidant and coupling agent composition.
According to one kind of the invention, typically embodiment there is provided a kind of electrode of solar battery.The solar cell by
Any of the above-described kind of paste composition is prepared from.
According to one kind of the invention, typically embodiment there is provided a kind of solar cell, including electrode.The electrode is upper
State the electrode of solar battery being prepared from by the paste composition of the present invention.
According to a kind of typical embodiment of the present invention, electrode of solar battery component includes silver powder, lead oxide-oxidation
Tellurium-IA family metal oxides-Group IIA metal oxide-based glasses powder and organic carrier.Now, this hair will be described in further detail
The composition of bright electrode of solar battery.
(A) silver powder
According to a kind of typical embodiment of the present invention, the paste composition for preparing electrode of solar battery includes silver
Powder is used as conductive powder.The granularity of silver powder can be nanometer or micron order.For example, silver powder can have tens to hundreds of nanometers,
Or several to tens microns of granularity.Or, silver powder can be the mixture of two or more silver powder with different-grain diameter.
Silver powder can have spherical, thin slice or amorphous shape.
Silver powder preferably has about 0.1 μm to about 10 μm of an average grain diameter (D50), and more preferably from about 0.5 μm to about 5 μm is averaged
Particle diameter (D50).Average grain diameter can use instrument, such as Mastersize 2000 (Malvern Co., Ltd.) by conducting powder
End is dispersed in isopropanol (IPA) after 3 minutes by ultrasonic wave at 25 DEG C and measured.In the average particle size range, combination
Thing can provide low contact resistance and low line resistance.
Gross weight based on composition, silver powder can about 60wt% to about 95wt% amount exist.Within the range, it is conductive
Powder can prevent the deterioration of conversion efficiency caused by the increase due to resistance.In the case of more preferably, conductive powder is with about
70wt% to about 95wt% amount is present.
(B) lead oxide-tellurium oxide-IA family metal oxides-Group IIA metal oxide-based glasses powder
Glass powder is used to strengthen the adhesion between conductive powder and chip or substrate, and sintered in electrocondution slurry
Cheng Zhong, contact resistance is reduced by etching antireflection layer and fusing silver powder and silver-colored crystal grain being formed in emitter region.In addition,
During sintering process, glass powder softens and reduces sintering temperature.
When increasing the area of solar cell to improve solar battery efficiency, it is understood that there may be solar cell
The problem of contact resistance increase.Accordingly, it would be desirable to minimize series resistance (Rs) and the influence to p-n junction.In addition, having with using
The suitable sintering temperature for having the various chips of different surfaces resistance changes in a wide range, and glass powder is necessary to ensure that enough heat
Stability is to be resistant to larger sintering temperature window.
Solar cell is connected to each other to constitute solar cell module by welding.In this case, solar-electricity
Low adhesion intensity between pond electrode and welding is likely to result in disengaging or the reduction reliability of battery.In the present invention, in order to
Ensure that solar cell has required electrically and physically property such as bonding strength, use lead oxide-tellurium oxide-IA races metal
Oxide-Group IIA metal oxide-based glasses powder.
In the present invention, lead oxide-tellurium oxide-IA family metal oxides-Group IIA metal oxide-based glasses powder can be with
The TeO of PbO, 31~70wt% comprising 20~50wt%2, 0.1~7wt% IA family metal oxides, 0.1~7wt%
Group IIA metal oxide and other oxides RO, and the mass ratio of IA family metal oxides and Group IIA metal oxide is 0.1
~7:The addition summation of 1, IA family metal oxide, Group IIA metal oxide and other oxides in glass powder be 1~
25wt%.Within the range, glass powder may insure excellent bonding strength and excellent transformation efficiency.
According to a kind of typical embodiment of the present invention, lead oxide-tellurium oxide-IA family metal oxides-Group IIA metal oxygen
Compound base glass powder may further include other at least one oxides, selected from phosphorous oxide (P2O5), boron oxide (B2O3),
Titanium oxide (TiO2), tungsten oxide (WO3), nickel oxide (NiO), silica (SiO2), zinc oxide (ZnO).
Glass powder can pass through any allusion quotation by lead oxide-tellurium oxide-IA family metal oxides-Group IIA metal oxide
It is prepared by the method for type.For example, oxide is mixed in certain proportion with lead oxide-bismuth oxide-tellurium oxide-tungsten oxide.Mixing can
To be carried out using ball mill or planetary mill.The composition of mixing is melted at about 900 DEG C to about 1300 DEG C, is then quenched
To about 25 DEG C.Using disc mill, planetary mill etc. is crushed to resulting materials, so as to provide glass powder.
The average grain diameter D50 of glass powder can be about 0.1 μm to about 10 μm, and accounts for the pact of the total amount based on composition
0.1wt% to about 5wt% amount.Glass powder can have spherical or amorphous shape.
(C) organic carrier
By the mechanical mixture with the inorganic component in electrode of solar battery, it is printed that organic carrier assigns electrocondution slurry
Cheng Suoxu appropriate viscosity and rheological behavior.
Organic carrier can be any typical organic carrier for electrode of solar battery composition, and can wrap
Include adhesive resin, solvent etc..
Adhesive resin can be selected from acrylate or celluosic resin.Bonding is used as usually using ethyl cellulose
Agent resin.In addition, adhesive resin can be selected from ethylhydroxyethylcellulose, nitrocellulose, ethyl cellulose and phenolic aldehyde tree
The blend of fat, alkyd resin, phenol, acrylate, dimethylbenzene, polybutene, polyester, urea, melamine, vinyl acetate tree
Fat, wood rosin, polymethacrylates of alcohol etc..
Solvent can be selected from such as hexane, toluene, ethyl cellosolve, cyclohexanone, butyl cellosolve, butyl carbitol (two
Ethylene glycol monobutyl ether), dibutyl carbitol (DBC) (diethylene glycol dibutyl ether), acetate of butyl carbitol (monobutyl ether-acetate), third
Glycol monomethyl ether, hexylene glycol, terpineol, methyl ethyl ketone, benzylalcohol, gamma-butyrolacton, ethyl lactate and combinations thereof.
Gross weight based on composition, organic carrier can about 1wt% to about 20wt% amount exist.Within the range,
Organic carrier can provide enough bonding strengths and excellent impressionability for composition.
(D) additive
As needed, composition may further include typical additive, to strengthen mobile performance, processing characteristics and steady
It is qualitative.Additive can include dispersant, thixotropic agent, plasticizer, viscosity stabiliser, defoamer, pigment, UV stabilizer, antioxygen
Agent, coupling agent etc., but not limited to this.These additives can be used alone or be used as its mixture.These additives
Can exist with about 0.1wt% in composition to about 5wt% amount, but the amount can change as needed.
According to a kind of typical embodiment of the present invention, the solar cell manufactured using paste composition.Such as Fig. 1 institutes
Show, backplate 210 and front electrode 230 can be by printed battery electrode components in including p layers 101 and as emitter stage
On the chip or substrate 100 of n-layer 102, and formed through oversintering.For example, by printing composition on the backside of the wafer simultaneously
Printed composition is dried at about 200 DEG C to about 400 DEG C about 10 seconds to 60 seconds, to carry out for preparing backplate
Preliminary process.Furthermore, it is possible to carry out being used to make by the printing slurry on the preceding surface of chip and the composition of dry printing
The preliminary process of standby preceding electrode.It is then possible to by being sintered at about 400 DEG C to about 950 DEG C, preferably from about 850 DEG C to about 950 DEG C
Chip about 30 seconds formed front electrode and backplate to 50 seconds.
Next, the present invention will be more fully described by reference to embodiment.It should be noted, however, that these embodiments
Offer is merely to illustrate the present invention, should not be construed as in any way limiting the present invention.
For purposes of clarity, those skilled in the art are eliminated clearly to be described in detail.
Embodiment and comparative example
Composition according to table 1 mixes oxide, and is melted and sintered at 900 DEG C~1400 DEG C, so that
Prepare lead oxide-tellurium oxide-IA family metal oxides-Group IIA metal oxide-based glasses that average grain diameter (D50) is 2.0 μm
Powder.
As organic bond, 1.0 weight % ethyl cellulose is substantially dissolved in 9.0 weight % fourth at 60 DEG C
In base carbitol, and it is 1.5 μm of ball shape silver powders, 1.5 weight % prepared oxygen that addition, which includes 86 weight % average grain diameter,
Change lead-tellurium oxide-IA family metal oxides-Group IIA metal oxide glass powder and 0.5 weight % thixotropic agent Thixatrol
ST is then ground, so as to prepare electrode of solar battery composition into binder solution in three-roller.
By electrod composition produced as described above by silk-screen printing, the preceding surface of monocrystalline silicon piece is deposited on predetermined pattern
On, then dried in infra-red drying stove.Then, the composition that aluminium electrode is carried on the back for preparing is printed on the backside of the wafer simultaneously
Dry in an identical manner.By the cell piece handled by above step in belt firing furnace, in being burnt till at 910 DEG C 40 seconds.
The conversion efficiency (%) of battery, series resistance Rs (m Ω), open-circuit voltage are measured using solar energy efficiency tester (CT-801)
(Voc) etc..Then, the electrode of battery and welding are welded with solder flux at 300 DEG C to 400 DEG C using flatiron.Then, battery
The bonding strength (N/mm) of electrode and welding is surveyed using tester under 180 ° of peel angle and 50mm/min rate of extension
Amount.The conversion efficiency and tensile test of measurement are shown in table 1.
Embodiment 1~11 and comparative example 1~7
Embodiment 1~11 and comparative example 1~7 prepare use in an identical manner using the composition of glass dust as shown in table 1
In the composition of electrode of solar battery, and evaluate physical property.Need to show be the embodiment and comparative example in table 1 be for
The characteristics of prominent one or more examples, rather than be limitation the scope of the present invention, nor explanation comparative example is in this hair
Outside bright scope.In addition, invention main body is not limited to the specific detail described in embodiment and comparative example.
Table 1
As shown in table 1, the electrode of solar battery and other comparative examples of the composition manufacture prepared in embodiment 1~11
1-7 is compared, and is shown and welding very high bonding strength and excellent conversion efficiency.And comparative example 1~7 is shown or
Relatively low battery efficiency or relatively low pulling force, or both are simultaneously relatively low.
Comparative example 1 shows the situation for containing relatively low PbO contents in glass composition, the efficiency for the solar energy electrode being made and drawing
Power is all relatively low with respect to invention example.Comparative example 2 shows the situation for containing higher PbO contents in glass composition, the solar energy being made
Battery it is less efficient.Similar, comparative example 3 does not have first family oxide, the solar cell being made it is less efficient.Contrast
Example 4,5 does not have second family oxide, and the efficiency and pulling force for the solar energy electrode being made are all relatively low with respect to invention example.Comparative example
6th, 7 contents for showing II races oxide not within the scope of the invention, the solar cell that is made or have relatively low efficiency or had
Relatively low pulling force or both is all relatively low.
Invention example shows that glass dust composition is 20~50wt% PbO, 31~70wt% TeO2, 0.1~7wt%
IA family metal oxides, 0.1~7wt% Group IIA metal oxide and other oxides, and IA family metal oxides with
The mass ratio of Group IIA metal oxide is 0.1~7:1, IA family metal oxide, Group IIA metal oxide and other oxides
Addition summation in glass powder is 1~25wt%, and the solar cell being made has higher performance.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of be used to prepare the glass powder of electrode of solar battery, it is characterised in that the glass powder comprising 20~
50wt% PbO, 31~70wt% TeO2, 0.1~7wt% IA family metal oxides, 0.1~7wt% Group IIA metal
Oxide and other oxides, and the mass ratio of the IA family metal oxides and Group IIA metal oxide is 0.1~7:1, institute
State the addition of IA family metal oxides, the Group IIA metal oxide and other described oxides in the glass powder
Summation is 1~25wt%.
2. glass powder according to claim 1, it is characterised in that the IA family metal oxides are selected from by Li2O、
Na2O and K2One or more in the group of O compositions.
3. glass powder according to claim 1, it is characterised in that the Group IIA metal oxide be selected from by MgO,
One or more in the group of CaO, SrO and BaO composition.
4. glass powder according to claim 1, it is characterised in that other described oxides are selected from by P2O5、B2O3、
TiO2、WO3、NiO、SiO2One or more in the group constituted with ZnO.
5. glass powder according to claim 1, it is characterised in that the average grain diameter D50 of the glass powder is 0.1~
10μm。
6. a kind of paste composition for being used to prepare electrode of solar battery, it is characterised in that the conduction comprising 60~95wt%
Powder, 1.0~20wt% organic carrier, the 0.1~5wt% glass powder as any one of claim 1 to 5, with
And the additive of surplus.
7. paste composition according to claim 6, it is characterised in that the additive is selected from by dispersant, thixotroping
Agent, plasticizer, viscosity stabiliser, defoamer, pigment, UV stabilizer, antioxidant and coupling agent composition group in one kind or
It is a variety of.
8. paste composition according to claim 6, it is characterised in that the conductive powder is silver powder.
9. a kind of electrode of solar battery, it is characterised in that as the paste composition system any one of claim 6 to 8
It is standby to form.
10. a kind of solar cell, including electrode, it is characterised in that the electrode is solar-electricity as claimed in claim 9
Pond electrode.
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| CN201710310870.2A CN107216041B (en) | 2017-05-04 | 2017-05-04 | Glass frit for preparing solar cell electrode, paste composition comprising same, solar cell electrode and solar cell |
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| CN114538782A (en) * | 2020-11-26 | 2022-05-27 | 无锡帝科电子材料股份有限公司 | Glass frit for preparing solar cell electrode, paste composition comprising same, solar cell electrode and solar cell |
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