JP5006826B2 - 太陽電池及びその製造方法 - Google Patents
太陽電池及びその製造方法 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims description 35
- 239000004065 semiconductor Substances 0.000 claims description 93
- 239000000758 substrate Substances 0.000 claims description 91
- 238000000034 method Methods 0.000 claims description 47
- 238000010438 heat treatment Methods 0.000 claims description 36
- 239000013078 crystal Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 11
- 229910052709 silver Inorganic materials 0.000 description 11
- 239000004332 silver Substances 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000005360 phosphosilicate glass Substances 0.000 description 8
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 238000007650 screen-printing Methods 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910021419 crystalline silicon Inorganic materials 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- 229910000978 Pb alloy Inorganic materials 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- LWUVWAREOOAHDW-UHFFFAOYSA-N lead silver Chemical compound [Ag].[Pb] LWUVWAREOOAHDW-UHFFFAOYSA-N 0.000 description 2
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 2
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 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
- 238000003486 chemical etching Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002003 electrode paste Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
- H01L31/02245—Electrode arrangements specially adapted for back-contact solar cells for metallisation wrap-through [MWT] type solar cells
-
- 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
- H01L31/03529—Shape of the potential jump barrier or surface barrier
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Description
直径が100μmのビアホールが形成されて、厚さが240μmのp型のシリコンからなる半導体基板を準備した。前記半導体基板は、テクスチャリング工程によって微細な凹凸が形成されている。拡散炉(diffusion furnace)内で塩化ホスホリル(POCl3)を熱分解させて半導体基板の表面にPSG層を形成し、前記PSG層内のリンを半導体基板の内部に拡散させて、厚さが0.5μmのエミッタを形成した。希釈されたフッ酸(HF)を利用してPSG層を除去し、水酸化カリウム(KOH)を利用して、リンが拡散された部分のうちの不必要な部分を除去した。
第2熱処理を750℃で行った点を除いては、実験例と同一の方法で太陽電池を製造した。このような実験例による太陽電池及び比較例による太陽電池の電流密度(Jsc)、開放電圧(Voc)、並列抵抗(Rsh)、フィルファクター(FF)、効率(Eff)を測定した結果を、下記の表1に示した。
20 エミッタ
30 ベース
40 第1電極
42 第1電極部
44 第2電極部
46 伝導性結晶
50 第2電極
52 後面電界層
60 絶縁膜
61 第1部分
62 第2部分
70 隔離部
100 太陽電池
Claims (15)
- 互いに対向する第1面及び第2面を有し、ビアホールが形成された半導体基板と、
前記半導体基板の第1面、前記ビアホールの内壁、及び前記第2面にわたって形成されるエミッタと、
前記半導体基板で前記エミッタとp−n接合を形成するベースと、
前記エミッタと電気的に連結される第1電極と、
前記ベースと電気的に連結される第2電極と、
前記半導体基板の前記第1面上に形成される第1の部分と、前記ビアホールの内壁に形成される第2の部分と、を含む絶縁膜と、を備え、
前記第1電極は、
前記半導体基板の前記第1面に形成される第1電極部と、
前記ビアホール内及び前記半導体基板の前記第2面に形成され、前記第1電極部に連結される第2電極部と、
を含み、
前記エミッタに対向する前記第1電極部の界面及び前記エミッタに対向する前記第2電極部の界面は、互いに異なる構造を有し、
前記第2の部分は、前記第2電極部と前記エミッタとの間に位置することを特徴とする、太陽電池。 - 前記第1電極部の界面に、前記エミッタと電気的に連結され、互いに離隔する複数の伝導性結晶が形成されることを特徴とする、請求項1に記載の太陽電池。
- 前記伝導性結晶は、逆ピラミッド形状を有することを特徴とする、請求項2に記載の太陽電池。
- 前記エミッタに対向する前記第2電極部の界面及び前記エミッタは、面対向構造を有することを特徴とする、請求項1に記載の太陽電池。
- 前記第2の部分は、前記ビアホールの内壁を覆う膜形態であることを特徴とする、請求項1に記載の太陽電池。
- ビアホールが形成された半導体基板を準備する段階と、
前記半導体基板の第1面、前記ビアホールの内壁、及び前記第2面にわたってエミッタを形成し、前記エミッタとp−n接合を形成するベースを形成する段階と、
前記半導体基板の第1面及び前記ビアホールの内壁に絶縁膜を形成する段階と、
前記半導体基板の第1面に第1電極部形成用ペーストを塗布する段階と、
前記第1電極部形成用ペーストを第1の温度で熱処理することで、第1電極部を形成し、前記絶縁膜のうち前記半導体基板の第1面に形成される部分をエッチングする第1熱処理段階と、
前記ビアホールの内部と、前記第1面と対向する前記半導体基板の第2面と、に第2電極部形成用ペーストを塗布する段階と、
前記第2電極部形成用ペーストを前記第1の温度より低い第2の温度で熱処理することで、前記第1電極部と電気的に連結される第2電極部を形成する一方、前記絶縁膜のうち前記ビアホールの内壁に形成される部分をエッチングしない第2熱処理段階と、を含むことを特徴とする、太陽電池の製造方法。 - 前記第1熱処理段階では、前記エミッタに対向する前記第1電極部の界面に、前記エミッタと連結される伝導性結晶が形成される
ことを特徴とする、請求項6に記載の太陽電池の製造方法。 - 前記伝導性結晶は、逆ピラミッド形状を有することを特徴とする、請求項7に記載の太陽電池の製造方法。
- 前記第1熱処理段階では、ファイヤースルーが発生することを特徴とする、請求項6に記載の太陽電池の製造方法。
- 前記エミッタに対向する前記第2電極部の界面及び前記エミッタは、面対向構造を有することを特徴とする、請求項6に記載の太陽電池の製造方法。
- 前記第2熱処理段階では、ファイヤースルーが発生しないことを特徴とする、請求項6に記載の太陽電池の製造方法。
- 前記第1電極部形成用ペースト及び前記第2電極部形成用ペーストは、互いに同一な物質であることを特徴とする、請求項6に記載の太陽電池の製造方法。
- 前記半導体基板を準備する段階及び前記第1電極部形成用ペーストを塗布する段階の間に、前記半導体基板の第2面に第2電極形成用ペーストを塗布する段階をさらに含み、
前記第1熱処理段階では、前記第2電極形成用ペーストを前記第1の温度で共に熱処理して、第2電極を形成することを特徴とする、請求項6に記載の太陽電池の製造方法。 - 前記第1の温度は、650〜850℃であることを特徴とする、請求項6に記載の太陽電池の製造方法。
- 前記第2の温度は200〜600℃であることを特徴とする、請求項6に記載の太陽電池の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2008-0007991 | 2008-01-25 | ||
KR1020080007991A KR100927725B1 (ko) | 2008-01-25 | 2008-01-25 | 태양 전지 및 이의 제조 방법 |
Publications (2)
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JP2009177109A JP2009177109A (ja) | 2009-08-06 |
JP5006826B2 true JP5006826B2 (ja) | 2012-08-22 |
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JP2008085491A Expired - Fee Related JP5006826B2 (ja) | 2008-01-25 | 2008-03-28 | 太陽電池及びその製造方法 |
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US (1) | US20090188550A1 (ja) |
EP (1) | EP2086015A2 (ja) |
JP (1) | JP5006826B2 (ja) |
KR (1) | KR100927725B1 (ja) |
CN (1) | CN101494249B (ja) |
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JP2007311425A (ja) * | 2006-05-16 | 2007-11-29 | Nippon Telegr & Teleph Corp <Ntt> | 太陽電池の製造方法および太陽電池 |
JP5025184B2 (ja) * | 2006-07-28 | 2012-09-12 | 京セラ株式会社 | 太陽電池素子及びこれを用いた太陽電池モジュール、並びに、これらの製造方法 |
US20080174028A1 (en) * | 2007-01-23 | 2008-07-24 | General Electric Company | Method and Apparatus For A Semiconductor Structure Forming At Least One Via |
JP5103038B2 (ja) * | 2007-03-14 | 2012-12-19 | シャープ株式会社 | 光電変換素子、太陽電池モジュール、太陽光発電システム |
JP5258325B2 (ja) * | 2007-03-29 | 2013-08-07 | 京セラ株式会社 | 太陽電池モジュール |
-
2008
- 2008-01-25 KR KR1020080007991A patent/KR100927725B1/ko not_active IP Right Cessation
- 2008-03-28 JP JP2008085491A patent/JP5006826B2/ja not_active Expired - Fee Related
- 2008-05-16 US US12/122,166 patent/US20090188550A1/en not_active Abandoned
- 2008-09-02 CN CN200810214324XA patent/CN101494249B/zh not_active Expired - Fee Related
- 2008-10-09 EP EP08166200A patent/EP2086015A2/en not_active Withdrawn
Also Published As
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EP2086015A2 (en) | 2009-08-05 |
US20090188550A1 (en) | 2009-07-30 |
CN101494249B (zh) | 2010-11-03 |
JP2009177109A (ja) | 2009-08-06 |
CN101494249A (zh) | 2009-07-29 |
KR20090081864A (ko) | 2009-07-29 |
KR100927725B1 (ko) | 2009-11-18 |
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