KR102245585B1 - 태양 전지 내의 금속 구조물의 형성 - Google Patents
태양 전지 내의 금속 구조물의 형성 Download PDFInfo
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- KR102245585B1 KR102245585B1 KR1020167001885A KR20167001885A KR102245585B1 KR 102245585 B1 KR102245585 B1 KR 102245585B1 KR 1020167001885 A KR1020167001885 A KR 1020167001885A KR 20167001885 A KR20167001885 A KR 20167001885A KR 102245585 B1 KR102245585 B1 KR 102245585B1
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- aluminum
- solar cell
- electroplating
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 title claims abstract description 15
- 230000015572 biosynthetic process Effects 0.000 title description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 62
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 60
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 44
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000009713 electroplating Methods 0.000 claims abstract description 42
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052802 copper Inorganic materials 0.000 claims abstract description 41
- 239000010949 copper Substances 0.000 claims abstract description 41
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000009792 diffusion process Methods 0.000 claims abstract description 32
- 229940098779 methanesulfonic acid Drugs 0.000 claims abstract description 21
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 20
- 238000007747 plating Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 238000007650 screen-printing Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims 2
- 125000004432 carbon atom Chemical group C* 0.000 claims 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 2
- 239000001257 hydrogen Substances 0.000 claims 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 2
- 238000006116 polymerization reaction Methods 0.000 claims 2
- 238000007639 printing Methods 0.000 claims 1
- 239000003115 supporting electrolyte Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 60
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 8
- SDFNZYMSEOUVIF-UHFFFAOYSA-N copper;methanesulfonic acid Chemical compound [Cu].CS(O)(=O)=O SDFNZYMSEOUVIF-UHFFFAOYSA-N 0.000 description 4
- 238000001000 micrograph Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- 229920005591 polysilicon Polymers 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/20—Electrodes
- H10F77/206—Electrodes for devices having potential barriers
- H10F77/211—Electrodes for devices having potential barriers for photovoltaic cells
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- H01L31/022425—
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/001—Apparatus specially adapted for electrolytic coating of wafers, e.g. semiconductors or solar cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/38—Electroplating: Baths therefor from solutions of copper
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- H01L31/022441—
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- H01L31/0392—
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- H01L31/0475—
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- H01L31/068—
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- H01L31/0682—
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- H01L31/077—
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- H01L31/18—
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F10/00—Individual photovoltaic cells, e.g. solar cells
- H10F10/10—Individual photovoltaic cells, e.g. solar cells having potential barriers
- H10F10/14—Photovoltaic cells having only PN homojunction potential barriers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F10/00—Individual photovoltaic cells, e.g. solar cells
- H10F10/10—Individual photovoltaic cells, e.g. solar cells having potential barriers
- H10F10/14—Photovoltaic cells having only PN homojunction potential barriers
- H10F10/146—Back-junction photovoltaic cells, e.g. having interdigitated base-emitter regions on the back side
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/20—Electrodes
- H10F77/206—Electrodes for devices having potential barriers
- H10F77/211—Electrodes for devices having potential barriers for photovoltaic cells
- H10F77/219—Arrangements for electrodes of back-contact photovoltaic cells
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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
- Y02E10/547—Monocrystalline silicon PV cells
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
- Photovoltaic Devices (AREA)
- Organic Chemistry (AREA)
- Sustainable Energy (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Molecular Biology (AREA)
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- Electrodes Of Semiconductors (AREA)
Abstract
Description
도 1 내지 도 3은 알루미늄 전기도금 시드가 황산에 노출된 경우의 알루미늄 전기도금 시드의 현미경 사진.
도 4 내지 도 7은 본 개시 내용의 일 실시예에 따른 태양 전지의 제조를 개략적으로 예시하는 단면도.
도 8은 본 개시 내용의 일 실시예에 따라 태양 전지의 금속 구조물을 형성하는 방법의 흐름도.
도 9 내지 도 11은 알루미늄 전기도금 시드가 황산 대신에 메탄술폰산에 노출된 경우의 알루미늄 전기도금 시드의 현미경 사진.
Claims (20)
- 태양 전지(solar cell)를 제조하는 방법으로서,
유전체 층(dielectric layer) 내의 접점 구멍을 통해 태양 전지의 확산 영역에 접속되도록 유전체 층 상에 알루미늄 층을 형성하는 단계;
전기도금 시드(electroplating seed)를 형성하는 단계 - 상기 전기도금 시드를 형성하는 단계는 알루미늄 층 상에 니켈 층을 형성하는 것을 포함함 -; 및
태양 전지의 확산 영역에 접속되는 금속 접점을 형성하는 단계 - 상기 금속 접점을 형성하는 단계는 태양 전지의 배면 상에 구리 층을 전기도금하는 것을 포함하고, 구리 층은 메탄술폰산을 포함하고 황산을 갖지 않는 구리 도금조(copper plating bath) 내에서 전기도금됨 - 를 포함하고,
상기 구리 도금조는 아래 화학식으로 표시되는 물질을 포함하지 않는 것인, 방법.
(여기서, R은 수소 또는 탄소수 1 내지 6의 알킬이고, m은 평균 중합도이고, 6 내지 14의 정수임) - 태양 전지를 제조하는 방법으로서,
태양 전지 기판 상에 유전체 층을 형성하는 단계;
태양 전지의 확산 영역을 노출시키도록 유전체 층을 통해 접점 구멍을 형성하는 단계;
확산 영역에 접속되도록 유전체 층 상에 그리고 접점 구멍 내에 알루미늄 층을 형성하는 단계; 및
메탄술폰산을 포함하는 구리 전기도금조 내에서 전기도금 시드로서 알루미늄 층을 사용하여 구리 층을 전기도금하는 단계를 포함하고,
상기 구리 전기도금조는 아래 화학식으로 표시되는 물질을 포함하지 않는 것인, 방법.
(여기서, R은 수소 또는 탄소수 1 내지 6의 알킬이고, m은 평균 중합도이고, 6 내지 14의 정수임) - 제1항 또는 제2항에 있어서, 니켈 층은 알루미늄 층 상에 도금되는, 방법.
- 제1항 또는 제2항에 있어서, 상기 알루미늄 층을 형성하는 단계는 산화규소를 포함하는 유전체 층 상에 알루미늄 층을 형성하는 것을 포함하는, 방법.
- 제1항 또는 제2항에 있어서, 상기 알루미늄 층을 형성하는 단계는 유전체 층 상에 알루미늄 층을 인쇄하는 것을 포함하는, 방법.
- 제1항 또는 제2항에 있어서, 상기 알루미늄 층을 형성하는 단계는 유전체 층 상에 알루미늄 층을 스크린 인쇄하는 것을 포함하는, 방법.
- 제1항 또는 제2항에 있어서, 상기 유전체 층 상에 알루미늄 층을 형성하는 단계는 태양 전지의 기판 내에 형성되는 확산 영역에 접속되도록 유전체 층 상에 알루미늄 층을 형성하는 것을 포함하는, 방법.
- 제1항 또는 제2항에 있어서, 상기 유전체 층 상에 알루미늄 층을 형성하는 단계는 단결정 규소(monocrystalline silicon)를 포함하는 태양 전지 기판 상에 형성되는 유전체 층 상에 알루미늄 층을 형성하는 것을 포함하는, 방법.
- 제1항 또는 제2항에 있어서, 상기 구리 층을 전기도금하는 단계는 황산을 갖지 않는 전기도금조 내에서 구리 층을 전기도금하는 것을 포함하는, 방법.
- 제1항 또는 제2항의 방법에 따라 제조된 태양 전지.
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Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US13/931,520 | 2013-06-28 | ||
US13/931,520 US8945978B2 (en) | 2013-06-28 | 2013-06-28 | Formation of metal structures in solar cells |
PCT/US2014/041973 WO2014209617A1 (en) | 2013-06-28 | 2014-06-11 | Formation of metal structures in solar cells |
Publications (2)
Publication Number | Publication Date |
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KR20160025568A KR20160025568A (ko) | 2016-03-08 |
KR102245585B1 true KR102245585B1 (ko) | 2021-04-27 |
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KR1020167001885A KR102245585B1 (ko) | 2013-06-28 | 2014-06-11 | 태양 전지 내의 금속 구조물의 형성 |
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US (1) | US8945978B2 (ko) |
EP (1) | EP3014659A4 (ko) |
JP (1) | JP2016523458A (ko) |
KR (1) | KR102245585B1 (ko) |
CN (1) | CN105283963B (ko) |
WO (1) | WO2014209617A1 (ko) |
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- 2013-06-28 US US13/931,520 patent/US8945978B2/en active Active
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JP2002540291A (ja) | 1999-03-19 | 2002-11-26 | テクニツク・インコーポレーテツド | 電気めっき槽 |
JP2008057035A (ja) | 2006-06-05 | 2008-03-13 | Rohm & Haas Electronic Materials Llc | めっき方法 |
JP2012172264A (ja) * | 2011-02-18 | 2012-09-10 | Samsung Electronics Co Ltd | 銅めっき溶液およびこれを用いた銅めっき方法 |
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WO2014209617A1 (en) | 2014-12-31 |
KR20160025568A (ko) | 2016-03-08 |
CN105283963A (zh) | 2016-01-27 |
EP3014659A4 (en) | 2016-06-15 |
US20150004744A1 (en) | 2015-01-01 |
CN105283963B (zh) | 2018-01-16 |
US8945978B2 (en) | 2015-02-03 |
EP3014659A1 (en) | 2016-05-04 |
JP2016523458A (ja) | 2016-08-08 |
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