KR20120002969A - Paste composition used for forming an electrode of solar cell - Google Patents
Paste composition used for forming an electrode of solar cell Download PDFInfo
- Publication number
- KR20120002969A KR20120002969A KR1020110139024A KR20110139024A KR20120002969A KR 20120002969 A KR20120002969 A KR 20120002969A KR 1020110139024 A KR1020110139024 A KR 1020110139024A KR 20110139024 A KR20110139024 A KR 20110139024A KR 20120002969 A KR20120002969 A KR 20120002969A
- Authority
- KR
- South Korea
- Prior art keywords
- methacrylate
- solar cell
- forming
- electrode
- paste composition
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 48
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- 239000000178 monomer Substances 0.000 claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 11
- 229920002678 cellulose Polymers 0.000 claims abstract description 11
- 239000001913 cellulose Substances 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 11
- 239000007870 radical polymerization initiator Substances 0.000 claims abstract description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002270 dispersing agent Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims abstract description 4
- 239000004014 plasticizer Substances 0.000 claims abstract description 4
- 239000003381 stabilizer Substances 0.000 claims abstract description 3
- 239000004094 surface-active agent Substances 0.000 claims abstract description 3
- 239000002562 thickening agent Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 23
- -1 hydroxyethyl hydroxypropyl Chemical group 0.000 claims description 15
- 238000010304 firing Methods 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- 150000002978 peroxides Chemical class 0.000 claims description 6
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 5
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 5
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical group CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000001856 Ethyl cellulose Substances 0.000 claims description 4
- 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 claims description 4
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 4
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 4
- 229920001249 ethyl cellulose Polymers 0.000 claims description 4
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 4
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 4
- LNCPIMCVTKXXOY-UHFFFAOYSA-N hexyl 2-methylprop-2-enoate Chemical compound CCCCCCOC(=O)C(C)=C LNCPIMCVTKXXOY-UHFFFAOYSA-N 0.000 claims description 4
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 4
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims description 3
- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical compound CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 claims description 2
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical group CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims description 2
- VMLATLXXUPZKMJ-UHFFFAOYSA-N (4-bromophenyl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=C(Br)C=C1 VMLATLXXUPZKMJ-UHFFFAOYSA-N 0.000 claims description 2
- LUFZFJMGPZMZFN-UHFFFAOYSA-N (4-bromophenyl)methyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=C(Br)C=C1 LUFZFJMGPZMZFN-UHFFFAOYSA-N 0.000 claims description 2
- SIADNYSYTSORRE-UHFFFAOYSA-N (4-chlorophenyl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=C(Cl)C=C1 SIADNYSYTSORRE-UHFFFAOYSA-N 0.000 claims description 2
- KJAUNJWNAZPHAH-UHFFFAOYSA-N (4-ethoxyphenyl)methyl 2-methylprop-2-enoate Chemical compound CCOC1=CC=C(COC(=O)C(C)=C)C=C1 KJAUNJWNAZPHAH-UHFFFAOYSA-N 0.000 claims description 2
- MVELOSYXCOVILT-UHFFFAOYSA-N (4-hydroxy-2-methylpentan-2-yl) 7,7-dimethyloctaneperoxoate Chemical compound CC(O)CC(C)(C)OOC(=O)CCCCCC(C)(C)C MVELOSYXCOVILT-UHFFFAOYSA-N 0.000 claims description 2
- WIZMCLXMWBKNKH-UHFFFAOYSA-N (4-methoxyphenyl) 2-methylprop-2-enoate Chemical compound COC1=CC=C(OC(=O)C(C)=C)C=C1 WIZMCLXMWBKNKH-UHFFFAOYSA-N 0.000 claims description 2
- PCFUAWBNLGYSRN-UHFFFAOYSA-N (4-methoxyphenyl)methyl 2-methylprop-2-enoate Chemical compound COC1=CC=C(COC(=O)C(C)=C)C=C1 PCFUAWBNLGYSRN-UHFFFAOYSA-N 0.000 claims description 2
- BEQKKZICTDFVMG-UHFFFAOYSA-N 1,2,3,4,6-pentaoxepane-5,7-dione Chemical compound O=C1OOOOC(=O)O1 BEQKKZICTDFVMG-UHFFFAOYSA-N 0.000 claims description 2
- VDYWHVQKENANGY-UHFFFAOYSA-N 1,3-Butyleneglycol dimethacrylate Chemical compound CC(=C)C(=O)OC(C)CCOC(=O)C(C)=C VDYWHVQKENANGY-UHFFFAOYSA-N 0.000 claims description 2
- CRJIYMRJTJWVLU-UHFFFAOYSA-N 2,4,4-trimethylpentan-2-yl 3-(5,5-dimethylhexyl)dioxirane-3-carboxylate Chemical compound CC(C)(C)CCCCC1(C(=O)OC(C)(C)CC(C)(C)C)OO1 CRJIYMRJTJWVLU-UHFFFAOYSA-N 0.000 claims description 2
- CYMIPSHAWPVQAM-UHFFFAOYSA-N 2-(butoxymethyl)oxirane;2-methylprop-2-enoic acid Chemical compound CC(=C)C(O)=O.CCCCOCC1CO1 CYMIPSHAWPVQAM-UHFFFAOYSA-N 0.000 claims description 2
- LLWXQTYTFXIHJG-UHFFFAOYSA-N 2-(ethoxymethyl)oxirane;2-methylprop-2-enoic acid Chemical compound CC(=C)C(O)=O.CCOCC1CO1 LLWXQTYTFXIHJG-UHFFFAOYSA-N 0.000 claims description 2
- WMYINDVYGQKYMI-UHFFFAOYSA-N 2-[2,2-bis(hydroxymethyl)butoxymethyl]-2-ethylpropane-1,3-diol Chemical compound CCC(CO)(CO)COCC(CC)(CO)CO WMYINDVYGQKYMI-UHFFFAOYSA-N 0.000 claims description 2
- HWSSEYVMGDIFMH-UHFFFAOYSA-N 2-[2-[2-(2-methylprop-2-enoyloxy)ethoxy]ethoxy]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCOCCOC(=O)C(C)=C HWSSEYVMGDIFMH-UHFFFAOYSA-N 0.000 claims description 2
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 claims description 2
- 125000006280 2-bromobenzyl group Chemical group [H]C1=C([H])C(Br)=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 125000006276 2-bromophenyl group Chemical group [H]C1=C([H])C(Br)=C(*)C([H])=C1[H] 0.000 claims description 2
- 125000006282 2-chlorobenzyl group Chemical group [H]C1=C([H])C(Cl)=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 125000004182 2-chlorophenyl group Chemical group [H]C1=C([H])C(Cl)=C(*)C([H])=C1[H] 0.000 claims description 2
- ZACVGCNKGYYQHA-UHFFFAOYSA-N 2-ethylhexoxycarbonyloxy 2-ethylhexyl carbonate Chemical compound CCCCC(CC)COC(=O)OOC(=O)OCC(CC)CCCC ZACVGCNKGYYQHA-UHFFFAOYSA-N 0.000 claims description 2
- WDQMWEYDKDCEHT-UHFFFAOYSA-N 2-ethylhexyl 2-methylprop-2-enoate Chemical compound CCCCC(CC)COC(=O)C(C)=C WDQMWEYDKDCEHT-UHFFFAOYSA-N 0.000 claims description 2
- 125000002927 2-methoxybenzyl group Chemical group [H]C1=C([H])C([H])=C(C(OC([H])([H])[H])=C1[H])C([H])([H])* 0.000 claims description 2
- 125000004204 2-methoxyphenyl group Chemical group [H]C1=C([H])C(*)=C(OC([H])([H])[H])C([H])=C1[H] 0.000 claims description 2
- AQKYLAIZOGOPAW-UHFFFAOYSA-N 2-methylbutan-2-yl 2,2-dimethylpropaneperoxoate Chemical compound CCC(C)(C)OOC(=O)C(C)(C)C AQKYLAIZOGOPAW-UHFFFAOYSA-N 0.000 claims description 2
- IFXDUNDBQDXPQZ-UHFFFAOYSA-N 2-methylbutan-2-yl 2-ethylhexaneperoxoate Chemical compound CCCCC(CC)C(=O)OOC(C)(C)CC IFXDUNDBQDXPQZ-UHFFFAOYSA-N 0.000 claims description 2
- FTKULWDEXPLXRU-UHFFFAOYSA-N 2-methylprop-2-enoic acid;2-(propoxymethyl)oxirane Chemical compound CC(=C)C(O)=O.CCCOCC1CO1 FTKULWDEXPLXRU-UHFFFAOYSA-N 0.000 claims description 2
- 125000006283 4-chlorobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1Cl)C([H])([H])* 0.000 claims description 2
- SAPGBCWOQLHKKZ-UHFFFAOYSA-N 6-(2-methylprop-2-enoyloxy)hexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCOC(=O)C(C)=C SAPGBCWOQLHKKZ-UHFFFAOYSA-N 0.000 claims description 2
- NQSLZEHVGKWKAY-UHFFFAOYSA-N 6-methylheptyl 2-methylprop-2-enoate Chemical compound CC(C)CCCCCOC(=O)C(C)=C NQSLZEHVGKWKAY-UHFFFAOYSA-N 0.000 claims description 2
- XFZOHDFQOOTHRH-UHFFFAOYSA-N 7-methyloctyl 2-methylprop-2-enoate Chemical compound CC(C)CCCCCCOC(=O)C(C)=C XFZOHDFQOOTHRH-UHFFFAOYSA-N 0.000 claims description 2
- DQEFEBPAPFSJLV-UHFFFAOYSA-N Cellulose propionate Chemical compound CCC(=O)OCC1OC(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C1OC1C(OC(=O)CC)C(OC(=O)CC)C(OC(=O)CC)C(COC(=O)CC)O1 DQEFEBPAPFSJLV-UHFFFAOYSA-N 0.000 claims description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 2
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 239000000020 Nitrocellulose Substances 0.000 claims description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 2
- ULQMPOIOSDXIGC-UHFFFAOYSA-N [2,2-dimethyl-3-(2-methylprop-2-enoyloxy)propyl] 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(C)(C)COC(=O)C(C)=C ULQMPOIOSDXIGC-UHFFFAOYSA-N 0.000 claims description 2
- JUDXBRVLWDGRBC-UHFFFAOYSA-N [2-(hydroxymethyl)-3-(2-methylprop-2-enoyloxy)-2-(2-methylprop-2-enoyloxymethyl)propyl] 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(CO)(COC(=O)C(C)=C)COC(=O)C(C)=C JUDXBRVLWDGRBC-UHFFFAOYSA-N 0.000 claims description 2
- AOJOEFVRHOZDFN-UHFFFAOYSA-N benzyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=CC=C1 AOJOEFVRHOZDFN-UHFFFAOYSA-N 0.000 claims description 2
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- 150000001875 compounds Chemical class 0.000 claims description 2
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- ADXPHBMQMGJRRO-UHFFFAOYSA-N hydroxymethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCO.CC(=C)C(=O)OCO.CC(=C)C(=O)OCO ADXPHBMQMGJRRO-UHFFFAOYSA-N 0.000 claims description 2
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- NZIDBRBFGPQCRY-UHFFFAOYSA-N octyl 2-methylprop-2-enoate Chemical compound CCCCCCCCOC(=O)C(C)=C NZIDBRBFGPQCRY-UHFFFAOYSA-N 0.000 claims description 2
- QIWKUEJZZCOPFV-UHFFFAOYSA-N phenyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1=CC=CC=C1 QIWKUEJZZCOPFV-UHFFFAOYSA-N 0.000 claims description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
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- 150000001412 amines Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- SQIFACVGCPWBQZ-UHFFFAOYSA-N delta-terpineol Natural products CC(C)(O)C1CCC(=C)CC1 SQIFACVGCPWBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- RHFOYRRUVLOOJP-UHFFFAOYSA-N ethoxyethane;propanoic acid Chemical compound CCOCC.CCC(O)=O RHFOYRRUVLOOJP-UHFFFAOYSA-N 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 238000007542 hardness measurement Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000013035 low temperature curing Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229940116411 terpineol Drugs 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
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- 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
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- 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
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- 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
- H01L31/04—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 adapted as photovoltaic [PV] conversion devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
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- 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
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- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
Abstract
Description
본 발명은 태양전지 전극형성용 페이스트 조성물에 관한 것으로, 특히 저온소성 가능하고 우수한 전기비저항 특성 및 우수한 안정성을 가져 태양전지의 전극 또는 배선의 형성에 유용하게 사용되는 페이스트 조성물, 및 이를 이용한 전극 또는 배선 형성방법에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paste composition for forming a solar cell electrode, and in particular, a paste composition capable of low-temperature firing, having excellent electrical resistivity and excellent stability, and useful for forming an electrode or wiring of a solar cell, and an electrode or wiring using the same It relates to a formation method.
종래의 전극 또는 배선 형성용 페이스트 조성물은 도전성 분말, 에폭시계 바인더, 경화제 및 용제 등을 혼합함으로써 제조되었다.Conventional electrode or wiring forming paste compositions have been prepared by mixing conductive powders, epoxy binders, curing agents, solvents and the like.
이러한 종래의 페이스트 조성물을 가열 경화하였을 때 우레탄 화합물이 생성되는데, 생성된 우레탄 화합물은 도전성 분말로서 주로 사용되는 Ag 입자의 밀착성 및 용접성을 크게 저하시키는 문제점을 갖는다. 또한, 이러한 종래의 페이스트 조성물은 느린 경화속도에 기인하여 선폭의 퍼짐현상을 야기시켜 고해상도의 전극 패턴을 구현하기에 어려움이 있었다(대한민국 특허공개 제10-2006-0049996호 및 제10-2008-0024444호, 및 일본 특허공개 제2005-268239호, 제2006-48149호 및 제2007-224191호 참조).The urethane compound is produced when the conventional paste composition is cured by heat. The resulting urethane compound has a problem of significantly lowering the adhesion and weldability of Ag particles mainly used as conductive powder. In addition, such a conventional paste composition has a difficulty in implementing a high-resolution electrode pattern due to the spreading of the line width due to the slow curing speed (Korean Patent Publication Nos. 10-2006-0049996 and 10-2008-0024444 And Japanese Patent Laid-Open Nos. 2005-268239, 2006-48149, and 2007-224191.
이에, 도전성 분말과 함께 사용하는 바인더 및 중합개시제 등의 유기물의 종류를 선별함으로써 도전성 분말의 접착력을 저하시키지 않으면서 높은 경화도 및 우수한 안정성을 갖는 전극 또는 배선 형성용 페이스트 조성물을 개발하려는 노력이 지속되고 있는 실정이다.
Accordingly, efforts to develop paste compositions for forming electrodes or wirings having high curability and excellent stability without degrading the adhesive strength of the conductive powder by selecting kinds of organic materials such as binders and polymerization initiators used with the conductive powder are ongoing. It's happening.
따라서, 본 발명은 종래의 전극 또는 배선 형성용 페이스트 조성물에 비해 저온에서 소성가능하고 우수한 경화도, 전기비저항 특성 및 안정성을 가져 전극 또는 배선의 형성에 유용하게 사용되는 열경화성 페이스트 조성물, 및 이를 이용한 전극 또는 배선 형성방법을 제공하는 것을 목적으로 한다.
Accordingly, the present invention is a thermosetting paste composition, and an electrode using the same, which can be baked at a low temperature and has excellent curability, electrical resistivity, and stability compared to conventional electrode or paste forming paste compositions, and is useful for forming electrodes or wirings. Another object is to provide a wiring forming method.
상기 목적을 달성하기 위하여, 본 발명은 In order to achieve the above object, the present invention
a) 도전성 분말;a) conductive powder;
b) 셀룰로오스계 바인더; b) a cellulose binder;
c) 아크릴레이트계 모노머; c) acrylate monomers;
d) 라디칼 중합개시제; 및 d) radical polymerization initiators; And
e) 용매e) solvent
를 포함하는 태양전지 전극형성용 페이스트 조성물을 제공한다.It provides a paste composition for forming a solar cell electrode comprising a.
또한 본 발명은Also,
상기 태양전지 전극형성용 페이스트 조성물을 기재 상에 도포하고 건조 및 소성하는 것을 포함하는 태양전지 전극 또는 배선 형성방법을 제공한다.It provides a solar cell electrode or a wiring forming method comprising applying, drying and firing the paste composition for forming a solar cell electrode on a substrate.
또한 본 발명은Also,
상기 전극 또는 배선 형성방법에 의하여 형성된 전극 또는 배선을 포함하는 것을 특징으로 하는 태양전지를 제공한다.
It provides a solar cell comprising an electrode or a wiring formed by the electrode or the wiring forming method.
본 발명의 태양전지 전극형성용 페이스트 조성물은,The paste composition for forming a solar cell electrode of the present invention,
① 인쇄 특성이 우수하여 고해상도의 전극 패턴을 구현할 수 있다.① It is possible to realize high resolution electrode pattern with excellent printing characteristics.
② 레올로지 특성이 우수하여 높은 종횡비 (aspect ratio)를 구현할 수 있다.② It has excellent rheological properties and can realize high aspect ratio.
③ 경화도가 우수하여 저온(400℃ 이하)에서도 우수한 전기비저항 특성을 얻을 수 있다.③ It has excellent hardening degree, so it can get excellent electric resistivity even at low temperature (below 400 ℃).
④ 점도 변화가 적어 보관안정성이 뛰어나다.④ Excellent storage stability due to little change in viscosity.
⑤ 기판 재질(폴리머, 유리, 금속, 세라믹 등)에 관계없이 높은 접착력을 나타내어 폭넓은 응용분야(태양전지, RFID, PCB 등)에 적용 가능하다.
⑤ It shows high adhesive strength regardless of substrate material (polymer, glass, metal, ceramic, etc.) and can be applied to a wide range of applications (solar cell, RFID, PCB, etc.).
본 발명에 따른 태양전지 전극형성용 페이스트 조성물은 a) 도전성 분말, b) 셀룰로오스계 바인더, c) 아크릴레이트계 모노머, d) 라디칼 중합개시제 및 e) 용매를 필수 성분으로서 포함하는 것을 특징으로 하며, 반응 온도가 80-150 ℃이어서 상온에서 자발적으로 경화되지 않으므로 80 ℃ 이하에서 보관상 변질의 위험이 없으며 150-400 ℃에서의 저온소성이 가능하다. The paste composition for forming a solar cell electrode according to the present invention is characterized in that it comprises a) conductive powder, b) cellulose binder, c) acrylate monomer, d) radical polymerization initiator and e) solvent as essential components. Since the reaction temperature is 80-150 ℃ does not spontaneously cure at room temperature, there is no risk of storage deterioration below 80 ℃ and low temperature firing at 150-400 ℃ is possible.
본 발명의 조성물은 바람직하게는 a) 도전성 분말 30 내지 90 중량%, b) 셀룰로오스계 바인더 1 내지 30 중량%, c) 아크릴레이트계 모노머 1 내지 30 중량%, d) 라디칼 중합개시제 0.01 내지 10 중량% 및 e) 잔량의 용매를 포함할 수 있다.The composition of the present invention is preferably a) 30 to 90% by weight of the conductive powder, b) 1 to 30% by weight of the cellulose binder, c) 1 to 30% by weight of the acrylate monomer, d) 0.01 to 10% by weight of the radical polymerization initiator % And e) residual amount of solvent.
본 발명에서 상기 a) 도전성 분말은 전극 또는 배선의 형성에 사용되는 통상적인 금속분말 또는 금속 파우더를 사용할 수 있으며, 가장 대표적인 도전성 분말로는 은(Ag) 분말을 들 수 있다. 본 발명에 사용되는 도전성 분말은 평균입경은 0.05 내지 10 ㎛의 분말을 사용할 수 있으며, 바람직하게는 0.1 내지 5 ㎛의 분말을 사용할 수 있다.In the present invention, a) the conductive powder may be used a conventional metal powder or metal powder used for the formation of the electrode or wiring, the most representative conductive powder is a silver (Ag) powder. As the conductive powder used in the present invention, a powder having an average particle diameter of 0.05 to 10 μm may be used, and preferably a powder of 0.1 to 5 μm may be used.
또한 도전성 분말을 2종 이상 혼합하여 사용할 수 있으며, 이 경우 나노입경인 0.05 내지 1 ㎛의 분말과 마이크로 입경인 1 내지 10㎛의 평균입경을 갖는 분말을 2종 이상 혼합하여 사용할 수 있다.In addition, two or more kinds of conductive powders may be mixed and used. In this case, two or more kinds of powders having a nanoparticle diameter of 0.05 to 1 μm and a micro particle diameter of 1 to 10 μm may be mixed and used.
도전성 분말의 형상은 구형, 비구형 또는 판상(플레이크상)을 사용할 수 있으며 이들을 2종 이상 혼합하여 사용할 수 있다. The shape of the conductive powder may be spherical, non-spherical or plate-like (flakes), and two or more kinds thereof may be mixed and used.
본 발명에서 상기 b) 셀룰로오스계 바인더의 구체적인 예로는 메틸셀룰로오스, 에틸셀룰로오스, 프로필셀룰로오스, 니트로셀룰로오스, 아세트산셀룰로오스, 프로피온산셀룰로오스, 히드록시에틸 셀룰로오스, 히드록시프로필 셀룰로오스, 히드록시에틸히드록시프로필 셀룰로오스 및 이들의 혼합물로 이루어지는 군으로부터 선택되는 것을 사용할 수 있으며, 바람직하게는 에틸셀룰로오스를 사용할 수 있다.Specific examples of the b) cellulose-based binder in the present invention are methyl cellulose, ethyl cellulose, propyl cellulose, nitrocellulose, cellulose acetate, cellulose propionate, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl hydroxypropyl cellulose and these It may be used selected from the group consisting of a mixture of, preferably ethyl cellulose may be used.
본 발명에서 상기 c) 아크릴레이트계 모노머의 구체적인 예로는 메타아크릴산, 메타아크릴레이트, 에틸글리시딜에테르 메타아크릴레이트, 프로필글리시딜에테르 메타아크릴레이트, 2 또는 4-브로모벤질 메타아크릴레이트, 헥실메타아크릴레이트, n-옥틸 메타아크릴레이트, 이소옥틸 메타아크릴레이트, 2-에틸헥실 메타아크릴레이트, 이소노닐 메타아크릴레이트, 에틸이소아밀아크릴레이트, 부틸글리시딜에테르 메타아크릴레이트, 페닐글리시딜에테르 아크릴레이트, 트리사이클로데실 메타아크릴레이트, 페닐 메타아크릴레이트, 벤질 메타아크릴레이트, 2 또는 4-메톡시페닐 메타아크릴레이트, 2 또는 4-메톡시벤질 메타아크릴레이트, 2 또는 4-에톡시페닐 메타아크릴레이트, 2 또는 4-에톡시벤질 메타아크릴레이트, 2 또는 4-클로로페닐 메타아크릴레이트, 2 또는 4 클로로 벤질 메타아크릴레이트, 2 또는 4-브로모페닐 메타아크릴레이트, 다관능성 단량체인 트리메틸올프로판 트리아크릴레이트, 에틸렌글리콜 디메타아크릴레이트, 트리에틸렌글리콜 디메타아크릴레이트, 1,3-부탄디올 디메타아크릴레이트, 네오펜틸글리콜 디메타아크릴레이트, 1,6-헥산디올 디메타아크릴레이트, 트리메틸롤 트리메타아크릴레이트, 트리메틸롤프로판 트리케타아크릴레이트, 펜타에리트리톨 트리메타아크릴레이트, 디트리메틸롤프로판 테트라메타아크릴레이트, 디펜타에리트리톨 헥실메타아크릴레이트 또는 이들의 혼합물을 들 수 있으며, 바람직하게는 트리메틸올프로판 트리아크릴레이트, 트리메틸올프로판 트리메타아크릴레이트, 에틸렌글리콜디메타아크릴레이트를 사용할 수 있다.Specific examples of the c) acrylate monomer in the present invention are methacrylic acid, methacrylate, ethylglycidyl ether methacrylate, propylglycidyl ether methacrylate, 2 or 4-bromobenzyl methacrylate, Hexyl methacrylate, n-octyl methacrylate, isooctyl methacrylate, 2-ethylhexyl methacrylate, isononyl methacrylate, ethyl isoamyl acrylate, butylglycidyl ether methacrylate, phenylglycol Cydylether acrylate, tricyclodecyl methacrylate, phenyl methacrylate, benzyl methacrylate, 2 or 4-methoxyphenyl methacrylate, 2 or 4-methoxybenzyl methacrylate, 2 or 4- Oxyphenyl methacrylate, 2 or 4-ethoxybenzyl methacrylate, 2 or 4-chlorophenyl methacrylate , 2 or 4 chlorobenzyl methacrylate, 2 or 4-bromophenyl methacrylate, trimethylolpropane triacrylate as polyfunctional monomer, ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, 1,3 Butanediol dimethacrylate, neopentylglycol dimethacrylate, 1,6-hexanediol dimethacrylate, trimethylol trimethacrylate, trimethylolpropane triketacrylate, pentaerythritol trimethacrylate, di Trimethylolpropane tetramethacrylate, dipentaerythritol hexyl methacrylate, or a mixture thereof. Preferably, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, and ethylene glycol dimethacrylate are used. Can be used.
본 발명에서 상기 d) 라디칼 중합개시제로는 라디칼 중합반응에 사용되는 퍼옥사이드계 화합물을 사용하는 것이 바람직하다. 이러한 퍼옥사이드계 개시제의 구체적인 예로는 디라우로일 퍼옥사이드, 디벤조일 퍼옥사이드, tert-부틸 퍼옥시네오데카노에이트, tert-아밀 퍼옥시피발레이트, 디(2-에틸헥실) 퍼옥시디카보네이트, 디(3-메톡시 부틸_퍼옥시디카보네이트, 3-히드록시-1,1-디메틸부틸퍼옥시네오데카노에이트, 디(3,5,5-트리메틸헥사노일)퍼옥사이드, tert-아밀 퍼옥시-2-에틸헥사노에이트, tert-부틸 퍼옥시-2-틸헥사노에이트, tert-부틸 이소프로필 모노퍼옥시카보네이트, tert-부틸퍼옥시-2-에틸헥셀카보네이트, 디벤조일퍼옥사이드, tert-아밀 (2-에틸헥실) 모노퍼옥시 카보네이트, tert-부틸퍼옥사이드, 테트라부틸퍼옥사이드, tert-부틸퍼옥시 이소프로필 카보네이트, tert-부틸 퍼옥시 벤조에이트, 1,1,3,3-테트라메틸부틸 퍼옥시네오데카노에이트, 디쿠밀퍼옥사이드, 디데카노일 퍼옥사이드 또는 이들의 혼합물을 들 수 있으며, 바람직하게는 tert-부틸 퍼옥사이드, 테트라부틸 퍼옥사이드, 디벤조일퍼옥사이드, tert-부틸퍼옥시벤조에이트, tert-부틸퍼옥시에오데카노에이트를 사용할 수 있다.In the present invention, it is preferable to use the peroxide-based compound used for the radical polymerization reaction as the radical polymerization initiator d). Specific examples of such peroxide initiators include dilauroyl peroxide, dibenzoyl peroxide, tert-butyl peroxy neodecanoate, tert-amyl peroxy pivalate, di (2-ethylhexyl) peroxydicarbonate, Di (3-methoxy butyl_peroxydicarbonate, 3-hydroxy-1,1-dimethylbutylperoxy neodecanoate, di (3,5,5-trimethylhexanoyl) peroxide, tert-amyl peroxy 2-ethylhexanoate, tert-butyl peroxy-2-tylhexanoate, tert-butyl isopropyl monoperoxycarbonate, tert-butylperoxy-2-ethylhexcarbonate, dibenzoylperoxide, tert- Amyl (2-ethylhexyl) monoperoxy carbonate, tert-butylperoxide, tetrabutylperoxide, tert-butylperoxy isopropyl carbonate, tert-butyl peroxy benzoate, 1,1,3,3-tetramethyl Butyl Peroxyneodecanoate, Dicumyl Peroxide, Didecanoyl Per Side or And mixtures thereof. Preferably tert-butyl peroxide, tetrabutyl peroxide, dibenzoyl peroxide, tert-butylperoxybenzoate and tert-butylperoxyeodecanoate can be used.
또한, 본 발명에 따른 태양전지 전극형성용 페이스트 조성물은 상술한 필수성분 이외에도 통상적으로 전극 또는 배선 형성용 페이스트에 포함될 수 있는 첨가제들을 필요에 따라 추가로 포함할 수 있다. 이러한 첨가제의 예로는 가소제, 증점제, 안정화제, 분산제, 탈포제 및 계면활성제 등을 들 수 있으며, 각각의 첨가제는 본 발명의 페이스트에 0.01 내지 10 중량%의 양으로 사용될 수 있다.In addition, the paste composition for forming a solar cell according to the present invention may further include additives that may be included in the paste for forming an electrode or a wiring, in addition to the essential components described above. Examples of such additives include plasticizers, thickeners, stabilizers, dispersants, defoamers and surfactants, each of which may be used in the paste of the present invention in an amount of 0.01 to 10% by weight.
상기 도전성 분말, 셀룰로오스계 바인더, 아크릴레이트계 모노머, 라디칼 중합개시제 및 임의의 첨가제를 상술한 사용량 범위 내에서 용매와 함께 블렌더 또는 3롤 혼련기 등으로 균일하게 혼합함으로써 본 발명의 페이스트 조성물을 제조할 수 있다.The paste composition of the present invention may be prepared by uniformly mixing the conductive powder, the cellulose binder, the acrylate monomer, the radical polymerization initiator and any additives with a solvent in a blender or a three-roll kneader with the solvent within the above-mentioned usage range. Can be.
본 발명의 페이스트 조성물은 특정 점도를 달성하는 양으로 용매를 포함할 수 있으며, 바람직하게는 브룩필드(Brookfield) HBT 점도계를 사용하여 #51 스핀들로서 상온(온도 25 ℃)하에서 shear rate 3.84 sec-1 조건으로 측정하는 경우 1 내지 300 Pa·S의 점도를 가질 수 있다.The paste composition of the present invention may comprise a solvent in an amount to achieve a certain viscosity, preferably a shear rate of 3.84 sec −1 at room temperature (temperature 25 ° C.) as a # 51 spindle using a Brookfield HBT viscometer When measured under conditions, it may have a viscosity of 1 to 300 Pa · S.
상기 용매로는 테르피네올, 부틸카비톨아세테이트, 부틸카비톨, 에틸렌 글리콜, 에틸렌 글리콜 모노부틸 에테르, 에틸렌 글리콜 모노부틸 에테르 아세테이트, 부틸렌글리콜 모노메틸에테르, 프로필렌 글리콜 메틸 에테르, 프로필렌글리콜 모노메틸에테르 프로피오네이트, 프로필렌 글리콜 메틸 에테르 아세테이트, 디프로필렌글리콜 메틸 에테르, 디프로필렌글리콜 모노메틸에테르, 디프로필렌글리콜 메틸 에테르 아세테이트, 프로필렌글리콜 모노메틸에테르 프로피오네이트, 에틸에테르 프로피오네이트, 프로필렌글리콜 모노메틸에테르 아세테이트, 디메틸아미노 포름알데히드, 메틸에틸케톤, 감마부티로락톤, 에틸락테이트, 2,2,4-트리메틸-1,3-펜타네디올 모노이소부틸레이트(텍사놀), 톨루엔, 1-메톡시-2-프로파놀 또는 이들의 혼합물 등을 사용할 수 있다.As the solvent, terpineol, butyl carbitol acetate, butyl carbitol, ethylene glycol, ethylene glycol monobutyl ether, ethylene glycol monobutyl ether acetate, butylene glycol monomethyl ether, propylene glycol methyl ether, propylene glycol monomethyl ether Propionate, propylene glycol methyl ether acetate, dipropylene glycol methyl ether, dipropylene glycol monomethyl ether, dipropylene glycol methyl ether acetate, propylene glycol monomethyl ether propionate, ethyl ether propionate, propylene glycol monomethyl ether Acetate, dimethylamino formaldehyde, methyl ethyl ketone, gamma butyrolactone, ethyl lactate, 2,2,4-trimethyl-1,3-pentanediol monoisobutylate (texanol), toluene, 1-methoxy 2-propanol or mixtures thereof There.
또한, 본 발명은 상기 페이스트 조성물을 기재 상에 도포하고 건조 및 소성하여 태양전지 전극 또는 배선을 형성하는 방법을 제공한다. 상기 전극 또는 배선은 태양전지의 전극 또는 배선일 수 있으며, 본 발명에 따른 태양전지는 본 발명에 따른 페이스트 조성물을 사용하여 전극 또는 배선을 형성하는 것을 제외하고는 통상적인 재료 및 방법에 의해 제조될 수 있다.The present invention also provides a method of applying the paste composition on a substrate, drying and baking to form a solar cell electrode or wiring. The electrode or wiring may be an electrode or wiring of a solar cell, and the solar cell according to the present invention may be manufactured by conventional materials and methods except for forming an electrode or wiring using the paste composition according to the present invention. have.
본 발명의 페이스트 조성물로부터 형성되는 상기 전극 또는 배선은 3 내지 50 ㎛의 두께를 가질 수 있다. 또한, 예를 들어, 태양전지의 경우, 상기 기재는 전면 전극(예: Ag 전극)이 도포되어 건조된 Si 기판일 수 있다. 상기 도포는 스크린 인쇄법에 의해 수행할 수 있으며, 상기 건조는 60 -150 ℃에서 3 내지 30분 동안, 그리고 소성은 150-400 ℃에서 5 내지 60분 동안 수행할 수 있다. 또한 건조와 소성을 동시에 시행하여 100-400 ℃의 저온에서 5 내지 60분 동안 수행할 수 있다.The electrode or wiring formed from the paste composition of the present invention may have a thickness of 3 to 50 ㎛. Also, for example, in the case of a solar cell, the substrate may be a Si substrate on which a front electrode (eg, an Ag electrode) is coated and dried. The application can be carried out by screen printing, the drying for 3 to 30 minutes at 60 -150 ℃, And firing can be carried out at 150-400 ℃ for 5 to 60 minutes. In addition, the drying and firing may be performed simultaneously for 5 to 60 minutes at a low temperature of 100-400 ℃.
상술한 바와 같이, 본 발명의 태양전지 전극형성용 페이스트 조성물은 다음과 같은 장점을 갖는다;As described above, the solar cell electrode forming paste composition of the present invention has the following advantages;
① 고해상도 (high resolution) : 페이스트의 레올로지 특성이 우수하여 80 ㎛ 이하의 고해상도 패턴구현이 용이하다.① High resolution: It is easy to implement high resolution pattern of 80 ㎛ or less because of excellent rheology of paste.
② 높은 종횡비 (aspect ratio) : 인쇄시 스크린 메쉬 빠짐성이 우수하여 높은 종횡비의 패턴을 구현할 수 있어서 고해상도에서도 우수한 선저항 특성을 얻을 수 있다.② High aspect ratio: It is possible to realize a high aspect ratio pattern because of excellent screen mesh dissipation when printing, and thus excellent line resistance characteristics can be obtained even at high resolution.
③ 400 ℃ 이하 저온경화에서도 전기저항 특성 우수 : 소량의 바인더+모노머+중합개시제로도 경화도가 우수하여 전기비저항 특성이 뛰어나다.③ Excellent electrical resistance characteristics even at low temperature curing below 400 ℃: Even with a small amount of binder + monomer + polymerization initiator, it has excellent curability and excellent electrical resistivity characteristics.
④ 보관 안정성이 뛰어나다 : 상온에서 경화반응이 억제되어 25~40 ℃ 조건하에서 점도변화가 적다. ④ Excellent storage stability: hardening reaction is suppressed at room temperature, so the viscosity change is small under 25 ~ 40 ℃.
⑤ 높은 경화도를 가지므로 필름, 투명 도전층, 실리콘, 유리 등과 같은 전자재료에 쓰이는 모든 기판과의 접착력이 우수하여, 태양전지, RFID, PCB 등의 폭넓은 응용분야에 효율적으로 적용 가능하다.
⑤ It has a high degree of hardening, so it has excellent adhesion to all substrates used in electronic materials such as film, transparent conductive layer, silicon, glass, etc., and can be efficiently applied to a wide range of applications such as solar cells, RFID, and PCB.
이하, 본 발명의 이해를 돕기 위하여 바람직한 실시예를 제시하나, 하기 실시예는 본 발명을 예시하는 것일 뿐 본 발명의 범위가 하기 실시예에 한정되는 것은 아니다.
Hereinafter, the present invention will be described in more detail with reference to the following examples. However, the scope of the present invention is not limited to the following examples.
[실시예][Example]
실시예 1 내지 3, 및 비교예 1 및 2Examples 1 to 3, and Comparative Examples 1 and 2
하기 표 1에 기재된 성분들을 해당량 사용하여 3롤 혼련기로 혼합하여 목적하는 페이스트 조성물을 제조하였다.To prepare the desired paste composition by mixing in a three-roll kneader using the corresponding amounts of the components shown in Table 1 below.
이어, 제조된 페이스트 조성물에 대해 비저항, 점도 변화, 해상도, 종횡비, 기판 부착력 및 소성후 강도 등을 측정하여 물성 측정결과 또한 하기 표 1에 나타내었다.Next, specific resistance, viscosity change, resolution, aspect ratio, substrate adhesion, strength after firing, etc. of the prepared paste composition were measured.
배합
(중량부)
combination
(Parts by weight)
모노머
Monomer
중합개시제
Polymerization initiator
특성
characteristic
경화very
Hardening
10% 이내 구현Line width change rate after printing
Implement within 10%
상기 표 1로부터, 실시예 1 내지 3에서 제조된 본 발명의 페이스트 조성물은, 비교예 1 및 2에서 제조된 조성물에 비해, 훨씬 우수한 전기비저항 특성, 안정성, 강도 및 기판부착력을 나타낼 뿐만 아니라 고해상도 및 높은 종횡비의 전극 패턴을 구현할 수 있음을 알 수 있다.From the above Table 1, the paste compositions of the present invention prepared in Examples 1 to 3, compared with the compositions prepared in Comparative Examples 1 and 2, not only shows much better electrical resistivity characteristics, stability, strength and substrate adhesion, but also high resolution and It can be seen that it is possible to implement a high aspect ratio electrode pattern.
Claims (14)
b) 셀룰로오스계 바인더;
c) 아크릴레이트계 모노머;
d) 라디칼 중합개시제; 및
e) 용매
를 포함하는 태양전지 전극형성용 페이스트 조성물.a) conductive powder;
b) a cellulose binder;
c) acrylate monomers;
d) radical polymerization initiators; And
e) solvent
Paste composition for forming a solar cell electrode comprising a.
a) 도전성 분말 30 내지 90 중량%;
b) 셀룰로오스계 바인더 1 내지 30 중량%;
c) 아크릴레이트계 모노머 1 내지 30 중량%;
d) 라디칼 중합개시제 0.01 내지 10 중량% 및
e) 잔량의 용매를 포함하는 것을 특징으로 하는 태양전지 전극형성용 페이스트 조성물.The method of claim 1,
a) 30 to 90% by weight of conductive powder;
b) 1 to 30% by weight of a cellulose binder;
c) 1 to 30% by weight of acrylate monomers;
d) 0.01 to 10 wt% of a radical polymerization initiator and
e) A paste composition for forming a solar cell electrode comprising a residual amount of solvent.
상기 도전성 분말이 은(Ag) 분말인 것을 특징으로 하는 태양전지 전극형성용 페이스트 조성물.The method of claim 1,
The electroconductive powder is a silver (Ag) powder, The paste composition for solar cell electrode formation characterized by the above-mentioned.
상기 도전성 분말이 0.05 내지 10 ㎛의 평균 입경을 갖는 것을 특징으로 하는 태양전지 전극형성용 페이스트 조성물.The method of claim 1,
The paste composition for forming a solar cell electrode, characterized in that the conductive powder has an average particle diameter of 0.05 to 10 ㎛.
상기 셀룰로오스계 바인더가 메틸셀룰로오스, 에틸셀룰로오스, 프로필셀룰로오스, 니트로셀룰로오스, 아세트산셀룰로오스, 프로피온산셀룰로오스, 히드록시에틸 셀룰로오스, 히드록시프로필 셀룰로오스, 히드록시에틸히드록시프로필 셀룰로오스 및 이들의 2종 이상의 혼합물로 이루어지는 군으로부터 선택되는 것을 특징으로 하는 태양전지 전극형성용 페이스트 조성물.The method of claim 1,
The cellulose binder is methyl cellulose, ethyl cellulose, propyl cellulose, nitro cellulose, cellulose acetate, cellulose propionate, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxyethyl hydroxypropyl cellulose and a mixture of two or more thereof Paste composition for forming a solar cell electrode, characterized in that selected from.
상기 아크릴레이트계 모노머가 트리메틸올프로판 트리아크릴레이트, 메타아크릴산, 메타아크릴레이트, 에틸글리시딜에테르 메타아크릴레이트, 프로필글리시딜에테르 메타아크릴레이트, 2 또는 4-브로모벤질 메타아크릴레이트, 헥실메타아크릴레이트, n-옥틸 메타아크릴레이트, 이소옥틸 메타아크릴레이트, 2-에틸헥실 메타아크릴레이트, 이소노닐 메타아크릴레이트, 에틸이소아밀아크릴레이트, 부틸글리시딜에테르 메타아크릴레이트, 페닐글리시딜에테르 아크릴레이트, 트리사이클로데실 메타아크릴레이트, 페닐 메타아크릴레이트, 벤질 메타아크릴레이트, 2 또는 4-메톡시페닐 메타아크릴레이트, 2 또는 4-메톡시벤질 메타아크릴레이트, 2 또는 4-에톡시페닐 메타아크릴레이트, 2 또는 4-에톡시벤질 메타아크릴레이트, 2 또는 4-클로로페닐 메타아크릴레이트, 2 또는 4 클로로 벤질 메타아크릴레이트, 2 또는 4-브로모페닐 메타아크릴레이트, 다관능성 단량체인 트리메틸올프로판 트리아크릴레이트, 에틸렌글리콜디 메타아크릴레이트, 트리에틸렌글리콜 디메타아크릴레이트, 1,3-부탄디올 디메타아크릴레이트, 네오펜틸글리콜 디메타아크릴레이트, 1,6-헥산디올 디메타아크릴레이트, 트리메틸롤 트리메타아크릴레이트, 트리메틸롤프로판 트리케타아크릴레이트, 펜타에리트리톨 트리메타아크릴레이트, 디트리메틸롤프로판 테트라메타아크릴레이트, 디펜타에리트리톨 헥실메타아크릴레이트 및 이들의 혼합물로 이루어진 군으로부터 1종 이상 선택되는 것을 특징으로 하는 태양전지 전극형성용 페이스트 조성물.The method of claim 1,
The acrylate monomers are trimethylolpropane triacrylate, methacrylic acid, methacrylate, ethylglycidyl ether methacrylate, propylglycidyl ether methacrylate, 2 or 4-bromobenzyl methacrylate, hexyl Methacrylate, n-octyl methacrylate, isooctyl methacrylate, 2-ethylhexyl methacrylate, isononyl methacrylate, ethylisoamyl acrylate, butylglycidyl ether methacrylate, phenylglycid Dilether acrylate, tricyclodecyl methacrylate, phenyl methacrylate, benzyl methacrylate, 2 or 4-methoxyphenyl methacrylate, 2 or 4-methoxybenzyl methacrylate, 2 or 4-ethoxy Phenyl methacrylate, 2 or 4-ethoxybenzyl methacrylate, 2 or 4-chlorophenyl methacrylate Rate, 2 or 4 chlorobenzyl methacrylate, 2 or 4-bromophenyl methacrylate, trimethylolpropane triacrylate as a multifunctional monomer, ethylene glycol di methacrylate, triethylene glycol dimethacrylate, 1, 3-butanediol dimethacrylate, neopentylglycol dimethacrylate, 1,6-hexanediol dimethacrylate, trimethylol trimethacrylate, trimethylolpropane triketacrylate, pentaerythritol trimethacrylate, Paste composition for forming a solar cell electrode, characterized in that at least one selected from the group consisting of ditrimethylolpropane tetramethacrylate, dipentaerythritol hexyl methacrylate and mixtures thereof.
상기 라디칼 중합개시제가 tert-부틸 퍼옥사이드, 테트라부틸 퍼옥사이드, 디라우로일 퍼옥사이드, 디벤조일 퍼옥사이드, tert-부틸 퍼옥시네오데카노에이트, tert-아밀 퍼옥시피발레이트, 디(2-에틸헥실) 퍼옥시디카보네이트, 디(3-메톡시 부틸_퍼옥시디카보네이트, 3-히드록시-1,1-디메틸부틸퍼옥시네오데카노에이트, 디(3,5,5-트리메틸헥사노일)퍼옥사이드, tert-아밀 퍼옥시-2-에틸헥사노에이트, tert-부틸 퍼옥시-2-틸헥사노에이트, tert-부틸 이소프로필 모노퍼옥시카보네이트, tert-부틸퍼옥시-2-에틸헥셀카보네이트, 디벤조일퍼옥사이드, tert-아밀 (2-에틸헥실) 모노퍼옥시 카보네이트, tert-부틸퍼옥사이드, 테트라부틸퍼옥사이드, tert-부틸퍼옥시 이소프로필 카보네이트, tert-부틸 퍼옥시 벤조에이트, 1,1,3,3-테트라메틸부틸 퍼옥시네오데카노에이트, 디쿠밀퍼옥사이드, 디데카노일 퍼옥사이드 및 이들의 혼합물로 이루어진 군으로부터 선택되는 퍼옥사이드계 화합물인 것을 특징으로 하는 태양전지 전극형성용 페이스트 조성물.The method of claim 1,
The radical polymerization initiator is tert-butyl peroxide, tetrabutyl peroxide, dilauroyl peroxide, dibenzoyl peroxide, tert-butyl peroxy neodecanoate, tert-amyl peroxypivalate, di (2- Ethylhexyl) peroxydicarbonate, di (3-methoxy butyl_peroxydicarbonate, 3-hydroxy-1,1-dimethylbutylperoxy neodecanoate, di (3,5,5-trimethylhexanoyl) per Oxides, tert-amyl peroxy-2-ethylhexanoate, tert-butyl peroxy-2-tylhexanoate, tert-butyl isopropyl monoperoxycarbonate, tert-butylperoxy-2-ethylhexahexacarbonate, Dibenzoylperoxide, tert-amyl (2-ethylhexyl) monoperoxy carbonate, tert-butylperoxide, tetrabutylperoxide, tert-butylperoxy isopropyl carbonate, tert-butyl peroxy benzoate, 1,1 , 3,3-tetramethylbutyl peroxyneodecanoate, dicumylfer Side, dideoxy Kano one peroxide, and mixtures thereof Paste composition for forming a solar cell electrode, characterized in that the peroxide-based compound selected from the group consisting of.
상기 조성물이 가소제, 증점제, 안정화제, 분산제, 탈포제, 계면활성제, 또는 이들의 혼합물을 0.01 내지 10 중량%의 양으로 추가로 포함하는 것을 특징으로 하는 태양전지 전극형성용 페이스트 조성물.The method of claim 1,
Paste composition for forming a solar cell electrode, characterized in that the composition further comprises a plasticizer, thickener, stabilizer, dispersant, defoamer, surfactant, or a mixture thereof in an amount of 0.01 to 10% by weight.
상기 페이스의 점도가 상온 (25 ℃)에서 측정하는 경우 1 내지 300 Pa·S의 점도를 가지는 것을 특징으로 하는 태양전지 전극형성용 페이스트 조성물.The method of claim 1,
The paste composition for forming a solar cell electrode, characterized in that the viscosity of the face has a viscosity of 1 to 300 Pa · S when measured at room temperature (25 ° C.).
상기 소성이 150-400 ℃ 범위에서 수행되는 것을 특징으로 하는 태양전지 전극 또는 배선 형성방법.The method of claim 10,
The firing is carried out in the range of 150-400 ℃ solar cell electrode or wiring forming method.
상기 전극 또는 배선이 3 내지 50 ㎛의 두께를 갖는 것을 특징으로 하는 태양전지 전극 또는 배선 형성방법.The method of claim 10,
The electrode or wiring has a thickness of 3 to 50 ㎛ Solar cell electrode or wiring forming method, characterized in that.
상기 전극 또는 배선이 태양전지, RFID(Radio Frequency Identification) 또는 PCB(Printed Circuit Board)의 전극 또는 배선인 것을 특징으로 하는 태양전지 전극 또는 배선 형성방법.The method of claim 10,
The electrode or wiring is an electrode or wiring of a solar cell, a radio frequency identification (RFID) or a printed circuit board (PCB). Solar cell electrode or wiring forming method, characterized in that.
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