JP5142565B2 - 太陽電池の製造方法 - Google Patents
太陽電池の製造方法 Download PDFInfo
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- JP5142565B2 JP5142565B2 JP2007073576A JP2007073576A JP5142565B2 JP 5142565 B2 JP5142565 B2 JP 5142565B2 JP 2007073576 A JP2007073576 A JP 2007073576A JP 2007073576 A JP2007073576 A JP 2007073576A JP 5142565 B2 JP5142565 B2 JP 5142565B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 51
- 239000000758 substrate Substances 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 25
- 239000004065 semiconductor Substances 0.000 claims description 25
- 229910021417 amorphous silicon Inorganic materials 0.000 description 25
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 25
- 239000000463 material Substances 0.000 description 15
- 230000011218 segmentation Effects 0.000 description 12
- 230000001681 protective effect Effects 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
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- 238000009751 slip forming Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
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- 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
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- 239000002904 solvent Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
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- H—ELECTRICITY
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- 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
- H01L31/0248—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 characterised by their semiconductor bodies
- H01L31/0352—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 characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
- H01L31/035272—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 characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions characterised by at least one potential jump barrier or surface barrier
- H01L31/035281—Shape of the body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
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- 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
- H01L31/06—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 characterised by potential barriers
- H01L31/068—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 characterised by potential barriers the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
- H01L31/0687—Multiple junction or tandem solar cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- 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
- H01L31/06—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 characterised by potential barriers
- H01L31/075—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 characterised by potential barriers the potential barriers being only of the PIN type, e.g. amorphous silicon PIN solar cells
- H01L31/076—Multiple junction or tandem solar cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
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- 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
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- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/544—Solar cells from Group III-V materials
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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
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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
- Y02E10/548—Amorphous silicon PV 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
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- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
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- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Plasma & Fusion (AREA)
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Description
これによれば、太陽電池の外周において頂点を形成するためのレーザ光の方向転換を行う必要がない。従って、分割溝形成工程の時間を短縮することができ、太陽電池の生産性を向上することができる。
図2及び図3を用いて本実施形態に係る太陽電池モジュール100の構成について説明する。図2は、本実施形態に係る太陽電池モジュール100の断面図である。図3は、本実施形態に係る太陽電池101の拡大断面図である。なお、図3においては、下方面を太陽電池101の受光面として示している。
本実施形態に係る太陽電池モジュール100の製造方法について説明する。
次に、図面を用いて、本発明の特徴的部分に係る分割溝形成工程について説明する。図5(a)は、円形の太陽電池101(光電変換部10)の裏面に照射されるレーザ光の軌跡を示している。図5(b)は、円形の太陽電池101(光電変換部10)の裏面に形成された分割溝8を示している。
図5(b)に示すように、分割溝8aは、太陽電池101の外周よりも内側において、頂点を有することなく連続して形成されている。従って、分割溝8aは、直線状に形成された直線溝と曲線状に形成された曲線溝とが交互に連結された構成を有する。なお、本実施形態において「頂点」とは、2つの直線が交わる点をいう。
本実施形態に係る太陽電池の製造方法によれば、光電変換部10の厚み方向においてn型単結晶シリコン基板1に達する分割溝8aを形成する工程と、分割溝8aに沿って太陽電池101(光電変換部10)を割断する工程とを備え、分割溝8aは、太陽電池101(光電変換部10)の外周よりも内側において連続して形成される。
本発明は上記の実施形態によって記載したが、この開示の一部をなす論述及び図面はこの発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施形態、実施例及び運用技術が明らかとなろう。
Claims (3)
- 半導体基板を含む光電変換部を形成する工程と、
前記光電変換部上に集電電極を形成する工程と、
前記光電変換部の厚み方向において前記半導体基板に達する分割溝を形成する工程と、
前記分割溝に沿って前記光電変換部を割断する工程と、を備え、
前記分割溝は、前記光電変換部の除去される領域との境界として頂点を有することなくレーザ光により形成されていることを特徴とする太陽電池の製造方法。 - 前記分割溝は、直線状に形成された直線溝と曲線状に形成された曲線溝とが交互に連結された構成を有することを特徴とする請求項1に記載の太陽電池の製造方法。
- 前記分割溝は、直線溝と曲線溝とから構成されており、
前記曲線溝と前記光電変換部の外周との最短距離は、前記直線溝と前記光電変換部の外周との最短距離よりも小さい
ことを特徴とする請求項1又は2に記載の太陽電池の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007073576A JP5142565B2 (ja) | 2007-03-20 | 2007-03-20 | 太陽電池の製造方法 |
US12/046,551 US20080230116A1 (en) | 2007-03-20 | 2008-03-12 | Method for manufacturing solar cell, and the solar cell |
EP08250951.4A EP1973168B1 (en) | 2007-03-20 | 2008-03-18 | Method for manufacturing solar cell by fracturing along a dividing groove and the corresponding solar cell |
Applications Claiming Priority (1)
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JP2007073576A JP5142565B2 (ja) | 2007-03-20 | 2007-03-20 | 太陽電池の製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2008235604A JP2008235604A (ja) | 2008-10-02 |
JP5142565B2 true JP5142565B2 (ja) | 2013-02-13 |
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JP2007073576A Expired - Fee Related JP5142565B2 (ja) | 2007-03-20 | 2007-03-20 | 太陽電池の製造方法 |
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US (1) | US20080230116A1 (ja) |
EP (1) | EP1973168B1 (ja) |
JP (1) | JP5142565B2 (ja) |
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JPWO2013141232A1 (ja) * | 2012-03-23 | 2015-08-03 | パナソニックIpマネジメント株式会社 | 太陽電池及びその製造方法 |
WO2014054600A1 (ja) | 2012-10-02 | 2014-04-10 | 株式会社カネカ | 結晶シリコン太陽電池の製造方法、太陽電池モジュールの製造方法、結晶シリコン太陽電池並びに太陽電池モジュール |
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JP2019102576A (ja) * | 2017-11-30 | 2019-06-24 | セイコーエプソン株式会社 | 電子機器および光電変換素子の製造方法 |
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-
2007
- 2007-03-20 JP JP2007073576A patent/JP5142565B2/ja not_active Expired - Fee Related
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2008
- 2008-03-12 US US12/046,551 patent/US20080230116A1/en not_active Abandoned
- 2008-03-18 EP EP08250951.4A patent/EP1973168B1/en not_active Not-in-force
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EP1973168A2 (en) | 2008-09-24 |
EP1973168B1 (en) | 2014-06-04 |
JP2008235604A (ja) | 2008-10-02 |
EP1973168A3 (en) | 2011-11-09 |
US20080230116A1 (en) | 2008-09-25 |
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