JP6614559B2 - 太陽電池セルの製造方法 - Google Patents
太陽電池セルの製造方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 41
- 238000004519 manufacturing process Methods 0.000 title claims description 38
- 239000004065 semiconductor Substances 0.000 claims description 150
- 239000000758 substrate Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 18
- 229910052710 silicon Inorganic materials 0.000 claims description 18
- 239000010703 silicon Substances 0.000 claims description 18
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 2
- 238000005530 etching Methods 0.000 description 17
- 239000010408 film Substances 0.000 description 12
- 238000005229 chemical vapour deposition Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 229910052581 Si3N4 Inorganic materials 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000000059 patterning Methods 0.000 description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 238000000206 photolithography Methods 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- -1 amorphous silicon Chemical compound 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- H01L31/20—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials
- H01L31/202—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials including only elements of Group IV of the Periodic Table
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- H01L31/0745—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 heterojunction type comprising a AIVBIV heterojunction, e.g. Si/Ge, SiGe/Si or Si/SiC solar cells
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Description
半導体基板10の主面(第2主面10b)上の少なくとも一部に設けられた半導体層(n型非晶質半導体層22)の上に絶縁層23を設けることと、
絶縁層23の上にマスク層(第1のマスク層31または第2のマスク層32)を設けることと、
マスク層(第1のマスク層31または第2のマスク層32)の一部をレーザ照射により除去して絶縁層23が露出する第1開口部(第1開口部41または第4開口部44)を形成することと、
第1開口部(第1開口部41または第4開口部44)に露出する絶縁層23をエッチング剤により除去して半導体層(n型非晶質半導体層22)が露出する第2開口部(第2開口部42または第5開口部45)を形成することと、を備える。
レーザ照射は、液体または低屈折率膜の上から行われてもよい。
第1のマスク層31をエッチング剤により除去して絶縁層23の上を露出させることと、
第3開口部43に露出する半導体基板10の上と、絶縁層23の上とに第2のマスク層32を設けることと、
絶縁層23の上に位置する第2のマスク層32の一部をレーザ照射により除去して絶縁層23が露出する第4開口部44を形成することと、
第4開口部44に露出する絶縁層23をエッチング剤により除去して半導体層(n型非晶質半導体層22)が露出する第5開口部45を形成することと、をさらに備えてもよい。
第5開口部45に露出する半導体層(n型非晶質半導体層22)と電気的に接続されるn側電極14と、第2のマスク層と電気的に接続されるp側電極15とを形成することをさらに備えてもよい。
Claims (12)
- 半導体基板の主面上に設けられた半導体層の上にシリコンを含む材料で構成される絶縁層を設けることと、
前記絶縁層の直上および前記半導体基板の主面上であって前記絶縁層上と異なる領域上に前記半導体層と導電型の異なる半導体材料を備える第1のマスク層を設けることと、
前記絶縁層の直上に位置する前記第1のマスク層の一部をレーザ照射により除去して前記絶縁層が露出する第1開口部を形成することと、
前記第1開口部に露出する前記絶縁層をエッチング剤により除去して前記半導体層が露出する第2開口部を形成することと、を備える太陽電池セルの製造方法。 - 半導体基板の主面上に設けられた半導体層の上にシリコンを含む材料で構成される絶縁層を設けることと、
前記絶縁層の上に半導体材料で構成される第1のマスク層を設けることと、
前記第1のマスク層の一部をレーザ照射により除去して前記絶縁層が露出する第1開口部を形成することと、
前記第1開口部に露出する前記絶縁層をエッチング剤により除去して前記半導体層が露出する第2開口部を形成することと、
前記第2開口部に露出する前記半導体層をエッチング剤により除去して前記半導体基板が露出する第3開口部を形成することと、
前記第3開口部に露出する前記半導体基板の上と、前記絶縁層の上とに第2のマスク層を設けることと、を備える太陽電池セルの製造方法。 - 前記第1のマスク層をアルカリエッチング剤により除去することをさらに備え、
前記第1のマスク層は、前記絶縁層よりも耐アルカリ性が低い請求項2に記載の太陽電池セルの製造方法。 - 前記絶縁層の上に位置する前記第2のマスク層の一部をレーザ照射により除去して前記絶縁層が露出する第4開口部を形成することと、
前記第4開口部に露出する前記絶縁層をエッチング剤により除去して前記半導体層が露出する第5開口部を形成することと、をさらに備える請求項2または3に記載の太陽電池セルの製造方法。 - 前記第1のマスク層は、シリコンを含む材料で形成される請求項1から4のいずれか一項に記載の太陽電池セルの製造方法。
- 前記第1のマスク層の上に前記第1のマスク層よりも屈折率の低い液体または低屈折率膜を設けることをさらに備え、
前記第1のマスク層への前記レーザ照射は、前記液体または前記低屈折率膜の上から行われる請求項1から5のいずれか一項に記載の太陽電池セルの製造方法。 - 前記半導体層は、シリコンを含むn型半導体材料を備え、前記第1のマスク層は、非晶質シリコン層である請求項1から6のいずれか一項に記載の太陽電池セルの製造方法。
- 前記第2開口部に露出する前記半導体層と電気的に接続されるn側電極と、前記第1のマスク層と電気的に接続されるp側電極とを形成することをさらに備える請求項1に記載の太陽電池セルの製造方法。
- 前記第5開口部に露出する前記半導体層と電気的に接続されるn側電極と、前記第2のマスク層と電気的に接続されるp側電極とを形成することをさらに備える請求項4に記載の太陽電池セルの製造方法。
- 前記半導体層および前記第1のマスク層の少なくとも一方は、シリコンを含むi型半導体材料を備える請求項1から9のいずれか一項に記載の太陽電池セルの製造方法。
- 前記半導体基板の主面上に設けられた前記半導体層は、第1導電型の半導体材料を備える第1半導体層であり、前記第1のマスク層は、前記第1導電型とは異なる第2導電型の半導体材料を備える第2半導体層である請求項1に記載の太陽電池セルの製造方法。
- 前記半導体基板の主面上に設けられた前記半導体層は、第1導電型の半導体材料を備える第1半導体層であり、前記第2のマスク層は、前記第1導電型とは異なる第2導電型の半導体材料を備える第2半導体層である請求項2に記載の太陽電池セルの製造方法。
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CN113632245B (zh) * | 2019-03-29 | 2023-10-13 | 株式会社钟化 | 太阳能电池的制造方法 |
CN113809186A (zh) * | 2021-09-13 | 2021-12-17 | 福建金石能源有限公司 | 一种采用形成电极、开槽绝缘二步法的背接触异质结太阳能电池制造方法 |
CN114203833A (zh) * | 2021-11-30 | 2022-03-18 | 福建金石能源有限公司 | 一种低激光损伤的背接触异质结太阳能电池制造方法 |
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US20100071765A1 (en) | 2008-09-19 | 2010-03-25 | Peter Cousins | Method for fabricating a solar cell using a direct-pattern pin-hole-free masking layer |
JP4964222B2 (ja) * | 2008-12-26 | 2012-06-27 | 三菱電機株式会社 | 光起電力装置の製造方法 |
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US9537043B2 (en) * | 2010-04-23 | 2017-01-03 | Semiconductor Energy Laboratory Co., Ltd. | Photoelectric conversion device and manufacturing method thereof |
EP2395554A3 (en) * | 2010-06-14 | 2015-03-11 | Imec | Fabrication method for interdigitated back contact photovoltaic cells |
KR101665722B1 (ko) * | 2010-09-27 | 2016-10-24 | 엘지전자 주식회사 | 태양 전지 및 이의 제조 방법 |
WO2012090643A1 (ja) | 2010-12-29 | 2012-07-05 | 三洋電機株式会社 | 太陽電池の製造方法及び太陽電池 |
WO2012132836A1 (ja) * | 2011-03-28 | 2012-10-04 | 三洋電機株式会社 | 光電変換装置及び光電変換装置の製造方法 |
JP2013026269A (ja) * | 2011-07-15 | 2013-02-04 | Sanyo Electric Co Ltd | 太陽電池及び太陽電池の製造方法 |
US20150027522A1 (en) * | 2011-11-16 | 2015-01-29 | Trina Solar Energy Development Pte Ltd | All-black-contact solar cell and fabrication method |
FR2985608B1 (fr) | 2012-01-05 | 2016-11-18 | Commissariat Energie Atomique | Cellule photovoltaique et procede de realisation |
JP2013187388A (ja) * | 2012-03-08 | 2013-09-19 | Sanyo Electric Co Ltd | 半導体装置の製造方法 |
US8959022B2 (en) * | 2012-07-03 | 2015-02-17 | Motorola Solutions, Inc. | System for media correlation based on latent evidences of audio |
CN102856328B (zh) * | 2012-10-10 | 2015-06-10 | 友达光电股份有限公司 | 太阳能电池及其制作方法 |
JP2014110256A (ja) * | 2012-11-30 | 2014-06-12 | Sharp Corp | 太陽電池セルの製造方法および太陽電池セル |
KR101622089B1 (ko) | 2013-07-05 | 2016-05-18 | 엘지전자 주식회사 | 태양 전지 및 이의 제조 방법 |
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