JP2013125963A - 光起電力素子 - Google Patents
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- 239000000758 substrate Substances 0.000 claims abstract description 61
- 239000010410 layer Substances 0.000 claims description 100
- 239000004065 semiconductor Substances 0.000 claims description 54
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 29
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 29
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 24
- 238000002161 passivation Methods 0.000 claims description 24
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 24
- 239000012535 impurity Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 239000002356 single layer Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 9
- 239000000969 carrier Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000010949 copper Substances 0.000 description 7
- 238000005530 etching Methods 0.000 description 7
- 229910004205 SiNX Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- -1 regions Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001039 wet etching Methods 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
- H01L31/04—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
- 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
- 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
- H01L31/0682—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 back-junction, i.e. rearside emitter, solar cells, e.g. interdigitated base-emitter regions back-junction cells
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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
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- H01L31/0216—Coatings
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- 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
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- H—ELECTRICITY
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- 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
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- 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
- H01L31/022441—Electrode arrangements specially adapted for back-contact solar 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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Abstract
【解決手段】第1幅を有するベース領域及び第2幅を有するエミッタ領域を備える基板と、前記ベース領域と接触して電気的に連結され、前記ベース領域を覆う第3幅を有する第1電極と、前記エミッタ領域と接触して電気的に連結され、前記エミッタ領域を覆う第4幅を有する第2電極と、を備え、前記第3幅は、前記第1電極の少なくとも一側が前記ベース領域より突出するように、前記第1幅より広く、前記第3幅と前記第4幅との比率Cは、0.3以上3.4以下であることを特徴とする光起電力素子。
【選択図】図1
Description
Dn:第1フィンガー電極161の幅、Dn=M1
DP:第2フィンガー電極171の幅、Dp=M2
Sn:ベース領域140の幅、Sn=W1
Sp:エミッタ領域150の幅、Sp=W2
Nn:第1フィンガー電極161の個数
Np:第2フィンガー電極171の個数
L:フィンガー電極161,171の長さ、L>>Dn,Dp
W:光起電力素子100の幅
セルのピッチ:Sn+Sp
・・・(数式2)
110,510,610,710 半導体基板
120,520,620,720 パッシベーション膜
130,530,630,730 反射防止膜
140,540,640,740 ベース領域
150,550,650,750 エミッタ領域
160,560,660,760 第1電極
161,561,661,761 第1フィンガー電極
162 第1バスバー
170,570,670,770 第2電極
171,571,671,771 第2フィンガー電極
172 第2バスバー
180,580,680,780 絶縁層
181,581 第1絶縁層
182,582 第2絶縁層
Claims (20)
- 第1幅を有するベース領域及び第2幅を有するエミッタ領域を備える基板と、
前記ベース領域と接触して電気的に連結され、前記ベース領域を覆う第3幅を有する第1電極と、
前記エミッタ領域と接触して電気的に連結され、前記エミッタ領域を覆う第4幅を有する第2電極と、を備え、
前記第3幅は、前記第1電極の少なくとも一側が前記ベース領域より突出するように、前記第1幅より広く、前記第3幅と前記第4幅との比率Cは、0.3以上3.4以下であることを特徴とする光起電力素子。 - 前記第3幅と前記第4幅との比率は、0.4以上2.5以下であることを特徴とする請求項1に記載の光起電力素子。
- 前記基板は、複数のベース領域及び複数のエミッタ領域を備え、前記ベース領域と前記エミッタ領域とは、互いに交番的なストライプパターンに配置され、
前記第1電極は、複数の第1部分を備え、前記第1電極の第1部分は、前記ベース領域とそれぞれ対応し、
前記第2電極は、複数の第1部分を備え、前記第2電極の第1部分は、前記エミッタ領域とそれぞれ対応することを特徴とする請求項1または2に記載の光起電力素子。 - 前記第1電極の前記第1部分それぞれは、上部及び下部を備え、前記上部は、第3幅を有し、前記下部は、前記第3幅より狭い第5幅を有し、前記第5幅は、前記下部及び前記下部と対応するベース領域の接触界面に対応する値であり、
前記第2電極の前記第1部分それぞれは、上部及び下部を備え、前記上部は、第4幅を有し、前記下部は、前記第4幅より狭い第6幅を有し、前記第6幅は、前記下部及び前記下部と対応するエミッタ領域の接触界面に対応する値であることを特徴とする請求項3に記載の光起電力素子。 - 前記第1電極の前記第1部分は、前記第1電極の第2部分と接続され、前記第2電極の前記第1部分は、前記第2電極の第2部分と接続されることを特徴とする請求項3または4に記載の光起電力素子。
- 前記第1電極の前記第1部分は、前記第2電極の前記第1部分の間に配置されることを特徴とする請求項3〜5のいずれか一項に記載の光起電力素子。
- 前記ベース領域は、第1不純物でドーピングされ、前記エミッタ領域は、第2不純物でドーピングされ、前記基板は、前記ベース領域と同じ不純物でドーピングされたことを特徴とする請求項1〜6のいずれか一項に記載の光起電力素子。
- 前記ベース領域及び前記エミッタ領域は、前記基板上に形成されるか、または前記基板に形成されたことを特徴とする請求項1〜7のいずれか一項に記載の光起電力素子。
- 前記ベース領域より突出した前記第1電極の側部は、隣接したエミッタ領域の部分とオーバーラップされることを特徴とする請求項1〜8のいずれか一項に記載の光起電力素子。
- 前記第2幅は、前記第1幅より広いことを特徴とする請求項9に記載の光起電力素子。
- 前記第1電極の側部と前記エミッタ領域の部分との間に挟まれる絶縁層をさらに備えることを特徴とする請求項9または10に記載の光起電力素子。
- 前記絶縁層は、第1層及び第2層を備えることを特徴とする請求項11に記載の光起電力素子。
- 前記第1層及び前記第2層は、異なる物質を含むことを特徴とする請求項12に記載の光起電力素子。
- 前記第1層は、酸化シリコンまたは窒化シリコンで形成され、前記第2層は、ポリマーで形成されたことを特徴とする請求項13に記載の光起電力素子。
- 前記第1層の厚さは、500Å以上3000Å以下であり、前記第2層の厚さは、0.5μm以上30μm以下であることを特徴とする請求項14に記載の光起電力素子。
- 前記第1層は、酸化シリコンまたは窒化シリコンで形成され、前記第2層は、酸化シリコンまたは窒化シリコンで形成されたことを特徴とする請求項12に記載の光起電力素子。
- 前記第1層の厚さは、500Å以上3000Å以下であり、前記第2層の厚さは、500Å以上3000Å以下であることを特徴とする請求項12に記載の光起電力素子。
- 前記絶縁層は、8000Åより厚い厚さを有する単一層であることを特徴とする請求項12に記載の光起電力素子。
- 前記第1電極は、前記絶縁層のコンタクトホールを通じて前記ベース領域と接触し、前記第2電極は、前記絶縁層のコンタクトホールを通じて前記エミッタ領域と接触することを特徴とする請求項12〜18のいずれか一項に記載の光起電力素子。
- 前記第1の電極及び前記第2の電極と反対側に備えられた前記基板の前面は、パッシベーション膜を備え、前記パッシベーション膜は、ドーピングされた非晶質の半導体物質で形成されたことを特徴とする請求項1〜19のいずれか一項に記載の光起電力素子。
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Application Number | Priority Date | Filing Date | Title |
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US201161569946P | 2011-12-13 | 2011-12-13 | |
US61/569946 | 2011-12-13 | ||
US13/584,917 US20130147003A1 (en) | 2011-12-13 | 2012-08-14 | Photovoltaic device |
US13/584917 | 2012-08-14 |
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US (1) | US20130147003A1 (ja) |
EP (1) | EP2605285B1 (ja) |
JP (1) | JP2013125963A (ja) |
KR (1) | KR101521872B1 (ja) |
CN (1) | CN103165691B (ja) |
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FR2988908B1 (fr) * | 2012-04-03 | 2015-03-27 | Commissariat Energie Atomique | Procede de fabrication d'une cellule photovoltaique a contacts interdigites en face arriere |
US20150179834A1 (en) * | 2013-12-20 | 2015-06-25 | Mukul Agrawal | Barrier-less metal seed stack and contact |
US9362427B2 (en) * | 2013-12-20 | 2016-06-07 | Sunpower Corporation | Metallization of solar cells |
CN106784104B (zh) * | 2017-02-10 | 2018-12-25 | 泰州中来光电科技有限公司 | 一种背接触太阳能电池串及其制备方法和组件、系统 |
CN108807562B (zh) * | 2017-04-28 | 2021-01-05 | 清华大学 | 光电探测器及其制备方法 |
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- 2012-08-23 EP EP12181566.6A patent/EP2605285B1/en not_active Revoked
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Also Published As
Publication number | Publication date |
---|---|
US20130147003A1 (en) | 2013-06-13 |
KR101521872B1 (ko) | 2015-05-20 |
CN103165691B (zh) | 2017-08-22 |
EP2605285A2 (en) | 2013-06-19 |
EP2605285B1 (en) | 2020-05-06 |
EP2605285A3 (en) | 2015-12-16 |
KR20130067207A (ko) | 2013-06-21 |
CN103165691A (zh) | 2013-06-19 |
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