JP6324904B2 - シリコン基板の表面を粗面化する方法、粗面化した基板及び粗面化した基板を備える光電池 - Google Patents
シリコン基板の表面を粗面化する方法、粗面化した基板及び粗面化した基板を備える光電池 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims description 67
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims description 53
- 229910052710 silicon Inorganic materials 0.000 title claims description 53
- 239000010703 silicon Substances 0.000 title claims description 53
- 238000000034 method Methods 0.000 title claims description 40
- 238000007788 roughening Methods 0.000 title claims description 26
- 229910052739 hydrogen Inorganic materials 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 239000001257 hydrogen Substances 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000001939 inductive effect Effects 0.000 claims description 5
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 2
- 239000002131 composite material Substances 0.000 description 7
- 238000005530 etching Methods 0.000 description 7
- 238000002310 reflectometry Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000220317 Rosa Species 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- 208000016063 arterial thoracic outlet syndrome Diseases 0.000 description 1
- 229910021418 black silicon Inorganic materials 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910021424 microcrystalline silicon Inorganic materials 0.000 description 1
- 239000002110 nanocone Substances 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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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
- H01L31/0236—Special surface textures
- H01L31/02363—Special surface textures of the semiconductor body itself, e.g. textured active layers
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- 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
- H01L31/1804—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof comprising only elements of Group IV of the Periodic System
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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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
- H01L31/0248—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
- H01L31/0256—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 the material
- H01L31/0264—Inorganic materials
- H01L31/028—Inorganic materials including, apart from doping material or other impurities, only elements of Group IV of the Periodic System
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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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- 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
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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
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- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/547—Monocrystalline silicon PV cells
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- Inorganic Chemistry (AREA)
- Photovoltaic Devices (AREA)
- Chemical Vapour Deposition (AREA)
- Drying Of Semiconductors (AREA)
Description
非特許文献1では、フォトリソグラフィー及びウエットエッチングにより、シリコン基板c−Si(100)の表面に、逆ピラミッドが形成される。
この目的のため、シリコン基板の表面を粗面化して、反射率を減少させ、光電池に好適な表面を形成する方法が提供される。
本発明の第1の変形例では、プラズマが、マトリックス分散型電子サイクロトロン共鳴型(MDECR)の高密度プラズマである。
バイアス電圧が100Vであると、12nm/minのエッチング率が得られる。この実施例では、少なくとも30分間のプラズマ露出時間が推奨される。200Vのバイアス電圧であると、純粋のArで、200nm/minのエッチング率が得られ、露出時間を1分と20分の間に減少させる。
図3と図4は、例えば、既にエッチングしたSi基板の表面に、ミクロン単位のピラミッド構造を生成し、粗面化した表面を、走査電子顕微鏡で見た像を示している。
Claims (23)
- シリコン基板の表面を粗面化する方法であって、
前記シリコン基板にRF電圧を印加することにより得られた100V〜300Vの範囲内のバイアス電圧で、前記シリコン基板をバイアスするとともに、1.5W/cm2〜6.5W/cm2の範囲内の出力で、Ar又はArとH2の混合物よりなる高密度プラズマに、前記シリコン基板の表面を露出させ、もって、前記シリコン基板の表面に、ナノメートル単位の多数の微細な巻回面構造を形成することを特徴とする方法。 - 前記高密度プラズマは、マトリックス分散型電子サイクロトロン共鳴型(MDECR)の高密度プラズマである、請求項1記載のシリコン基板の表面を粗面化する方法。
- 前記高密度プラズマは、誘導結合(ICP)により生成された高密度プラズマである、請求項1記載のシリコン基板の表面を粗面化する方法。
- 前記高密度プラズマは、共鳴誘導結合により生成されたプラズマ、即ちヘリコンプラズマである、請求項1記載のシリコン基板の表面を粗面化する方法。
- 前記高密度プラズマは、膨張型熱プラズマETPである、請求項1記載のシリコン基板の表面を粗面化する方法。
- 前記ArとH2との混合物からなる高密度プラズマにおいて、水素の流量がArの流量よりも少ない、請求項1〜5のいずれか1項に記載のシリコン基板の表面を粗面化する方法。
- Arの流量は、水素の流量の3倍である、請求項6に記載のシリコン基板の表面を粗面化する方法。
- 前記高密度プラズマに、前記シリコン基板の表面を露出させる露出段階における前記高密度プラズマの作動圧力は、0.7パスカルである、請求項1〜7のいずれか1項に記載のシリコン基板の表面を粗面化する方法。
- 前記Ar又はArとH2との混合物よりなる高密度プラズマに対する、前記シリコン基板の表面の露出時間を、1分より長くする、請求項1〜8のいずれか1項に記載のシリコン基板の表面を粗面化する方法。
- 前記Ar又はArとH2との混合物よりなる高密度プラズマに対する、前記シリコン基板の表面の露出時間を1分〜30分の範囲内とする、請求項1〜9のいずれか1項に記載のシリコン基板の表面を粗面化する方法。
- 前記Ar又はArとH2との混合物よりなる高密度プラズマに、前記シリコン基板の表面を露出する前に、前記シリコン基板の表面にミクロン単位のピラミッド構造を形成する、請求項1〜10のいずれか1項に記載のシリコン基板の表面を粗面化する方法。
- 前記高密度プラズマに露出させる前のシリコン基板が、磨かれるか、エッチングされるか、粗くギザギザにされた、(100)面若しくは(111)面を有する結晶性シリコンよりなる、請求項1〜11のいずれか1項に記載のシリコン基板の表面を粗面化する方法。
- ナノメートル単位の多数の微細な巻回面構造が形成された粗化面を備えることを特徴とする粗面化シリコン基板。
- 前記多数の巻回面構造は、各々単位的な構造を有する、請求項13記載の粗面化シリコン基板。
- 前記粗化面は、前記巻回面構造と複合化されたピラミッド状の構造を有する、請求項13又は14記載の粗面化シリコン基板。
- 前記巻回面構造は、約200nmの高さと、20nmの厚さを有する、請求項13〜15のいずれか1項に記載の粗面化シリコン基板。
- 前記巻回面構造における単位構造の平均外径は、150nm〜250nmの範囲内である、請求項14〜16のいずれか1項に記載の粗面化シリコン基板。
- 前記巻回面構造と前記ピラミッド状構造とが複合化された構造の平均外径と高さは、前記ピラミッド状構造のものと各々等しい、請求項15又は請求項15を引用する請求項16もしくは17に記載の粗面化シリコン基板。
- 磨かれるか、エッチングされるか、粗いギザギザにされた状態の(100)面若しくは(111)面を有する結晶性シリコンよりなるシリコン基板の表面上に、前記巻回面構造が形成されている、請求項13〜18のいずれか1項に記載の粗面化シリコン基板。
- 請求項13〜19のいずれか1項に記載の、前記粗化面を有する粗面化シリコン基板を備える光電池装置。
- 薄いフィルム状の装置である、請求項20に記載の光電池装置。
- 単結晶シリコンを含む、請求項20記載の光電池装置。
- ヘテロ接合光電池である、請求項22に記載の光電池装置。
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Application Number | Priority Date | Filing Date | Title |
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FR1104038A FR2984769B1 (fr) | 2011-12-22 | 2011-12-22 | Procede de texturation de la surface d'un substrat de silicium, substrat structure et dispositif photovoltaique comportant un tel substrat structure |
FR1104038 | 2011-12-22 | ||
PCT/EP2012/076338 WO2013092833A1 (fr) | 2011-12-22 | 2012-12-20 | Procede de texturation de la surface d'un substrat de silicium, substrat structure et dispositif photovoltaïque comportant un tel substrat structure |
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JP2015502670A JP2015502670A (ja) | 2015-01-22 |
JP6324904B2 true JP6324904B2 (ja) | 2018-05-16 |
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US (1) | US20140338744A1 (ja) |
EP (1) | EP2795677B1 (ja) |
JP (1) | JP6324904B2 (ja) |
KR (1) | KR20140105603A (ja) |
CN (1) | CN104488090B (ja) |
AU (1) | AU2012357017B2 (ja) |
FR (1) | FR2984769B1 (ja) |
MX (1) | MX344326B (ja) |
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JP2744350B2 (ja) * | 1990-11-22 | 1998-04-28 | キヤノン株式会社 | 半導体基板およびその製造方法 |
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FR2838020B1 (fr) | 2002-03-28 | 2004-07-02 | Centre Nat Rech Scient | Dispositif de confinement de plasma |
WO2005087977A1 (en) | 2004-03-09 | 2005-09-22 | Exatec, Llc | Expanding thermal plasma deposition system |
JP2006253366A (ja) * | 2005-03-10 | 2006-09-21 | Matsushita Electric Ind Co Ltd | 半導体装置製造方法 |
WO2008007944A1 (en) * | 2006-07-12 | 2008-01-17 | Technische Universiteit Eindhoven | Method and device for treating a substrate by means of a plasma |
EP1918965A1 (en) * | 2006-11-02 | 2008-05-07 | Dow Corning Corporation | Method and apparatus for forming a film by deposition from a plasma |
EP1918414A1 (en) * | 2006-11-02 | 2008-05-07 | Dow Corning Corporation | Film deposition of amorphous films with a graded bandgap by electron cyclotron resonance |
KR101393785B1 (ko) * | 2007-05-21 | 2014-05-13 | 엘지이노텍 주식회사 | 반도체 발광 소자 및 그 제조방법 |
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JP5425404B2 (ja) * | 2008-01-18 | 2014-02-26 | 東京エレクトロン株式会社 | アモルファスカーボン膜の処理方法およびそれを用いた半導体装置の製造方法 |
US20100236607A1 (en) * | 2008-06-12 | 2010-09-23 | General Electric Company | Monolithically integrated solar modules and methods of manufacture |
KR20100037765A (ko) | 2008-10-02 | 2010-04-12 | 삼성전자주식회사 | 플라즈마 발생장치 |
KR20120003859A (ko) * | 2009-03-17 | 2012-01-11 | 아이엠이씨 | 플라즈마 텍스처링 방법 |
FR2949276B1 (fr) * | 2009-08-24 | 2012-04-06 | Ecole Polytech | Procede de texturation de la surface d'un substrat de silicium et substrat de silicium texture pour cellule solaire |
US8765611B2 (en) * | 2009-11-09 | 2014-07-01 | 3M Innovative Properties Company | Etching process for semiconductors |
US20110120536A1 (en) * | 2009-11-20 | 2011-05-26 | Dapeng Wang | Roughness control of a wavelength selective reflector layer for thin film solar applications |
US8187979B2 (en) * | 2009-12-23 | 2012-05-29 | Varian Semiconductor Equipment Associates, Inc. | Workpiece patterning with plasma sheath modulation |
JP2011254041A (ja) * | 2010-06-04 | 2011-12-15 | Renesas Electronics Corp | 半導体装置 |
US9847225B2 (en) * | 2011-11-15 | 2017-12-19 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device and method of manufacturing the same |
US20130140592A1 (en) * | 2011-12-01 | 2013-06-06 | Taiwan Semiconductor Manufacturing Company, Ltd. | Light emitting diode with improved light extraction efficiency and methods of manufacturing same |
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ZA201404027B (en) | 2016-08-31 |
FR2984769A1 (fr) | 2013-06-28 |
FR2984769B1 (fr) | 2014-03-07 |
US20140338744A1 (en) | 2014-11-20 |
WO2013092833A1 (fr) | 2013-06-27 |
JP2015502670A (ja) | 2015-01-22 |
AU2012357017B2 (en) | 2016-04-14 |
KR20140105603A (ko) | 2014-09-01 |
EP2795677B1 (fr) | 2020-05-06 |
CN104488090A (zh) | 2015-04-01 |
MX2014007392A (es) | 2015-10-09 |
EP2795677A1 (fr) | 2014-10-29 |
MX344326B (es) | 2016-12-13 |
AU2012357017A1 (en) | 2014-08-07 |
CN104488090B (zh) | 2018-01-30 |
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