JP5917129B2 - 電極の作製方法、及び光電変換装置の作製方法 - Google Patents
電極の作製方法、及び光電変換装置の作製方法 Download PDFInfo
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- 238000006243 chemical reaction Methods 0.000 title claims description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 239000000758 substrate Substances 0.000 claims description 93
- 239000004065 semiconductor Substances 0.000 claims description 88
- 238000000034 method Methods 0.000 claims description 69
- 239000012535 impurity Substances 0.000 claims description 44
- 239000004020 conductor Substances 0.000 claims description 39
- 238000007639 printing Methods 0.000 claims description 35
- 230000003100 immobilizing effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 126
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 77
- 229910052710 silicon Inorganic materials 0.000 description 77
- 239000010703 silicon Substances 0.000 description 77
- 229910021419 crystalline silicon Inorganic materials 0.000 description 60
- 239000011347 resin Substances 0.000 description 42
- 229920005989 resin Polymers 0.000 description 42
- 238000007650 screen-printing Methods 0.000 description 25
- 238000005530 etching Methods 0.000 description 12
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 10
- 239000002344 surface layer Substances 0.000 description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 229910021417 amorphous silicon Inorganic materials 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000007772 electroless plating Methods 0.000 description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 4
- 229910021424 microcrystalline silicon Inorganic materials 0.000 description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 4
- 229910001887 tin oxide Inorganic materials 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 206010048799 Acute generalised exanthematous pustulosis Diseases 0.000 description 1
- 208000005441 Acute generalized exanthematous pustulosis Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- H01L31/022433—Particular geometry of the grid contacts
-
- 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
- H01L31/0248—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
-
- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Photovoltaic Devices (AREA)
Description
本発明の一態様である基板に設けた溝部、及び該溝部を充填する電極の構成を図1に示す。なお、図1(A)は断面図であり、平面図である図1(B)の線分A−Bの断面に相当する。なお、本発明の一態様における電極とは、その用途を限定するものではない。従って、例えば、電子デバイスの電極などに限らず、配線としても適用可能である。
本実施の形態では、実施の形態1で説明した電極をグリッド電極として有する光電変換装置、及びその作製方法を説明する。
本実施の形態では、実施の形態2で説明した光電変換装置とは異なる構成の光電変換装置、及びその作製方法を説明する。なお、実施の形態1と共通する構成及び作製方法などの詳細な説明は、本実施の形態では省略する。
101 基板
110 第1の溝部
120 第2の溝部
150 領域
200 電極
201 導電性樹脂
220 初期形状
240 電極
300 結晶性シリコン基板
302 第1の不純物層
304 第2の不純物層
306 グリッド電極
308 裏面電極
309 透光性絶縁膜
400 結晶性シリコン基板
406 透光性導電膜
408 グリッド電極
409 裏面電極
306a バスバー電極
306b フィンガー電極
311a 第1の溝部
311b 第1の溝部
312a 第2の溝部
312b 第2の溝部
313a 領域
313b 領域
402a 第1のシリコン半導体層
402b 第3のシリコン半導体層
404a 第2のシリコン半導体層
404b 第4のシリコン半導体層
408a バスバー電極
408b フィンガー電極
411a 第1の溝部
411b 第1の溝部
412a 第2の溝部
412b 第2の溝部
413a 領域
413b 領域
500 印刷版
510 スキージ
Claims (2)
- 基板に第1の溝部を形成し、
前記基板に前記第1の溝部に沿うように第2の溝部を形成し、
前記基板上方に、開口部を有する印刷版を設置し、
前記開口部に導電性材料を充填し、
前記第1の溝部と前記第2の溝部の間の領域に前記導電性材料を接触させ、
前記印刷版を移動させ、
前記第1の溝部及び前記第2の溝部に前記導電性材料を流し入れ、
前記導電性材料を固定化する電極の作製方法であって、
前記印刷版を設置するときに、前記開口部が前記第1の溝部、前記第2の溝部、及び前記第1の溝部と前記第2の溝部の間の領域、と重なる位置に設置し、
前記開口部の幅は、前記第1の溝部、前記第2の溝部、及び前記第1の溝部と前記第2の溝部の間の領域、の幅の総和よりも小さく、
前記第1の溝部と前記第2の溝部の間の領域の幅は、前記第1の溝部の幅よりも大きく、
前記第1の溝部と前記第2の溝部の間の領域の幅は、前記第2の溝部の幅よりも大きく、
前記導電性材料は、前記第1の溝部及び前記第2の溝部に充填されることを特徴とする電極の作製方法。 - 半導体基板に第1の溝部を形成し、
前記半導体基板に前記第1の溝部に沿うように第2の溝部を形成し、
前記第1の溝部及び前記第2の溝部を含む前記半導体基板の一方の面に第1の不純物層を形成し、
前記半導体基板上方に、開口部を有する印刷版を設置し、
前記開口部に導電性材料を充填し、
前記第1の溝部と前記第2の溝部の間の領域に前記導電性材料を接触させ、
前記印刷版を移動させ、
前記第1の溝部及び前記第2の溝部に前記導電性材料を流し入れ、
前記導電性材料を固定化する光電変換装置の作製方法であって、
前記印刷版を設置するときに、前記開口部が前記第1の溝部、前記第2の溝部、及び前記第1の溝部と前記第2の溝部の間の領域、と重なる位置に設置し、
前記開口部の幅は、前記第1の溝部、前記第2の溝部、及び前記第1の溝部と前記第2の溝部の間の領域、の幅の総和よりも小さく、
前記第1の溝部と前記第2の溝部の間の領域の幅は、前記第1の溝部の幅よりも大きく、
前記第1の溝部と前記第2の溝部の間の領域の幅は、前記第2の溝部の幅よりも大きく、
前記導電性材料は、前記第1の溝部及び前記第2の溝部に充填されることを特徴とする光電変換装置の作製方法。
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JP2011280132A JP5917129B2 (ja) | 2010-12-23 | 2011-12-21 | 電極の作製方法、及び光電変換装置の作製方法 |
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JP2010286810 | 2010-12-23 | ||
JP2010286810 | 2010-12-23 | ||
JP2011280132A JP5917129B2 (ja) | 2010-12-23 | 2011-12-21 | 電極の作製方法、及び光電変換装置の作製方法 |
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Publication Number | Publication Date |
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JP2012146969A JP2012146969A (ja) | 2012-08-02 |
JP2012146969A5 JP2012146969A5 (ja) | 2015-01-15 |
JP5917129B2 true JP5917129B2 (ja) | 2016-05-11 |
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JP2011280132A Expired - Fee Related JP5917129B2 (ja) | 2010-12-23 | 2011-12-21 | 電極の作製方法、及び光電変換装置の作製方法 |
Country Status (4)
Country | Link |
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US (1) | US8735213B2 (ja) |
EP (1) | EP2469602B1 (ja) |
JP (1) | JP5917129B2 (ja) |
CN (1) | CN102569534B (ja) |
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JP2015130367A (ja) * | 2012-04-24 | 2015-07-16 | 三菱電機株式会社 | 太陽電池およびその製造方法 |
JP6323689B2 (ja) * | 2013-02-28 | 2018-05-16 | パナソニックIpマネジメント株式会社 | 太陽電池モジュールの製造方法 |
CN118658901A (zh) * | 2024-08-20 | 2024-09-17 | 金阳(泉州)新能源科技有限公司 | 一种降低栅线短路风险的背接触电池制备方法及背接触电池 |
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JP2732524B2 (ja) | 1987-07-08 | 1998-03-30 | 株式会社日立製作所 | 光電変換デバイス |
US5356488A (en) | 1991-12-27 | 1994-10-18 | Rudolf Hezel | Solar cell and method for its manufacture |
JP2002118347A (ja) * | 2000-10-11 | 2002-04-19 | Micro Tekku Kk | 印刷スクリーン及び有底ビア穴埋め方法 |
JP2002305311A (ja) | 2001-01-31 | 2002-10-18 | Shin Etsu Handotai Co Ltd | 太陽電池の製造方法および太陽電池 |
CN1291502C (zh) * | 2001-03-19 | 2006-12-20 | 信越半导体株式会社 | 太阳能电池及其制造方法 |
JP2005150614A (ja) * | 2003-11-19 | 2005-06-09 | Sharp Corp | 太陽電池及びその製造方法 |
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US20090314338A1 (en) * | 2008-06-19 | 2009-12-24 | Renewable Energy Corporation Asa | Coating for thin-film solar cells |
JP2010103510A (ja) | 2008-09-29 | 2010-05-06 | Semiconductor Energy Lab Co Ltd | 光電変換装置及びその作製方法 |
TWI408831B (zh) * | 2008-12-05 | 2013-09-11 | 私立中原大學 | 發光二極體及其製程 |
JP2010286810A (ja) | 2009-05-15 | 2010-12-24 | Nikon Corp | ブレ補正装置および光学機器 |
WO2011001842A1 (en) | 2009-07-03 | 2011-01-06 | Semiconductor Energy Laboratory Co., Ltd. | Photoelectric conversion device and manufacturing method thereof |
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2011
- 2011-12-14 US US13/325,166 patent/US8735213B2/en not_active Expired - Fee Related
- 2011-12-21 EP EP11194774.3A patent/EP2469602B1/en not_active Not-in-force
- 2011-12-21 JP JP2011280132A patent/JP5917129B2/ja not_active Expired - Fee Related
- 2011-12-23 CN CN201110439853.1A patent/CN102569534B/zh not_active Expired - Fee Related
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US8735213B2 (en) | 2014-05-27 |
JP2012146969A (ja) | 2012-08-02 |
CN102569534A (zh) | 2012-07-11 |
CN102569534B (zh) | 2016-06-01 |
EP2469602A2 (en) | 2012-06-27 |
EP2469602A3 (en) | 2013-05-29 |
EP2469602B1 (en) | 2014-09-24 |
US20120161130A1 (en) | 2012-06-28 |
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