JP6741626B2 - 高効率裏面電極型太陽電池及びその製造方法 - Google Patents
高効率裏面電極型太陽電池及びその製造方法 Download PDFInfo
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- JP6741626B2 JP6741626B2 JP2017124479A JP2017124479A JP6741626B2 JP 6741626 B2 JP6741626 B2 JP 6741626B2 JP 2017124479 A JP2017124479 A JP 2017124479A JP 2017124479 A JP2017124479 A JP 2017124479A JP 6741626 B2 JP6741626 B2 JP 6741626B2
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- H01L31/0304—Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
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- 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
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- Photovoltaic Devices (AREA)
Description
最初に、150mm角、厚さ200μmおよび比抵抗1Ω・cmのリンドープn型アズカットシリコン基板において、熱濃水酸化カリウム水溶液によりダメージ層を除去後、80℃の5%水酸化カリウム水溶液中に20分間浸漬し、ランダムピラミッド状のテクスチャを形成し、引き続き塩酸/過酸化水素混合溶液中で洗浄を行った。
実施例1と同様の手順でパッシベーション膜と反射防止膜の形成まで行った結晶シリコン基板において、p型領域にアルミニウム粉末とガラスフリットの混合物を有機バインダーと混合させて得たアルミニウムペーストをスクリーン印刷により塗布し、200℃で1分間乾燥した。
実施例1と同様の手順でパッシベーション膜と反射防止膜の形成まで行った結晶シリコン基板において、p型領域に、銀粉末とガラスフリットの混合物にアルミニウム粉末を10重量%配合し、有機バインダーと混合させて得た銀ペーストをスクリーン印刷により塗布し、200℃で1分間乾燥した。
102、202、302…結晶シリコン基板、
103、203、303…p型領域、 104、204、304…n型領域、
105、205、…パッシベーション膜、 106、206…反射防止膜、
107、207、407…正電極、 108、208、408…負電極、
109…第1導電体、 209a…第1電極剤、
110…第2導電体、 210a…第2電極剤、 111…積層導電体、
212…拡散バリア、
420、520…太陽電池モジュール、 421…タブ、 422…正極端子、
423…負極端子、
530…太陽電池発電システム、 531…配線、 532…インバータ、
533…外部負荷回路。
Claims (9)
- 結晶シリコン基板の第1主表面に、p型の導電型を有するp型領域と、n型の導電型を有するn型領域とを有し、前記p型領域上に形成された正電極と、前記n型領域上に形成された負電極とを具備する裏面電極型太陽電池であって、
前記正電極が、前記p型領域上に形成され、III族元素を含む第1導電体と、該第1導電体の上に積層され、前記第1導電体よりもIII族元素の含有割合が低い第2導電体との積層導電体から成るものであり、
前記負電極が、前記n型領域上に形成された前記第2導電体から成るものであることを特徴とする太陽電池。 - 前記第1導電体が、銀を主成分とするものであることを特徴とする請求項1に記載の太陽電池。
- 前記第1導電体が、アルミニウムを主成分とするものであることを特徴とする請求項1に記載の太陽電池。
- さらに、前記p型領域と前記n型領域の前記正電極及び前記負電極が形成されていない表面に形成されたパッシベーション膜を具備するものであることを特徴とする請求項1から請求項3のいずれか1項に記載の太陽電池。
- 請求項1から請求項4のいずれか1項に記載の太陽電池を電気的に接続して成るものであることを特徴とする太陽電池モジュール。
- 請求項5に記載の太陽電池モジュールを電気的に複数接続して成るものであることを特徴とする太陽電池発電システム。
- 結晶シリコン基板の第1主表面にp型の導電型を有するp型領域及びn型の導電型を有するn型領域を形成する工程と、
前記p型領域の上にIII族元素を含む第1導電体を形成する工程と、
該第1導電体の上と前記n型領域の上の両方に前記第1導電体よりもIII族元素の含有割合が低い第2導電体を形成する工程と
を含み、
前記第1導電体を形成する工程と前記第2導電体を形成する工程とにより、前記第1導電体と前記第2導電体の積層導電体から成る正電極と、前記第2導電体から成る負電極とを形成することを特徴とする太陽電池の製造方法。 - 前記第1導電体を形成する工程と前記第2導電体を形成する工程は、電極剤をスクリーン印刷またはディスペンシング形成するステップを含む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。
- さらに、前記第1導電体を形成する工程と前記第2導電体を形成する工程よりも前に、前記p型領域と前記n型領域の表面にパッシベーション膜を形成する工程を含み、
前記第1導電体を形成する工程において、前記パッシベーション膜を介して前記p型領域の上にIII族元素を含む第1電極剤を塗布し、
前記第2導電体を形成する工程において、該第1電極剤の上と前記パッシベーション膜を介した前記n型領域の上の両方に前記第1電極剤よりもIII族元素の含有割合が低い第2電極剤を塗布し、
前記第2導電体を形成する工程の後に、前記第1電極剤と前記第2電極剤を焼結することで、前記正電極と前記負電極を形成することを特徴とする請求項7又は請求項8に記載の太陽電池の製造方法。
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US16/623,872 US11984522B2 (en) | 2017-06-26 | 2018-05-07 | High-efficiency backside contact solar cell and method for manufacturing thereof |
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CN201880043093.2A CN110800114B (zh) | 2017-06-26 | 2018-05-07 | 高效背面电极型太阳能电池及其制造方法 |
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CN117153951B (zh) * | 2023-10-20 | 2024-07-19 | 正泰新能科技股份有限公司 | 一种背接触光伏组件的生产方法及背接触光伏组件 |
Family Cites Families (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5426674A (en) | 1977-07-29 | 1979-02-28 | Matsushita Electric Ind Co Ltd | Electrode material for semiconductor device |
JPS6159546A (ja) | 1984-08-30 | 1986-03-27 | Fujitsu Ltd | リカバリ・デ−タ制御方式 |
US6180869B1 (en) | 1997-05-06 | 2001-01-30 | Ebara Solar, Inc. | Method and apparatus for self-doping negative and positive electrodes for silicon solar cells and other devices |
JP2004179334A (ja) | 2002-11-26 | 2004-06-24 | Kyocera Corp | 太陽電池素子の形成方法 |
US8309844B2 (en) * | 2007-08-29 | 2012-11-13 | Ferro Corporation | Thick film pastes for fire through applications in solar cells |
CN101383386B (zh) * | 2008-10-24 | 2010-12-01 | 中国科学院电工研究所 | 一种发射极环绕型太阳电池及其制备方法 |
JP2012523696A (ja) * | 2009-04-08 | 2012-10-04 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | 太陽電池電極 |
JPWO2011074467A1 (ja) * | 2009-12-18 | 2013-04-25 | 東レ株式会社 | 半導体デバイスの製造方法および裏面接合型太陽電池 |
WO2011090169A1 (ja) * | 2010-01-22 | 2011-07-28 | シャープ株式会社 | 裏面電極型太陽電池セル、配線シート、配線シート付き太陽電池セル、太陽電池モジュールおよび配線シート付き太陽電池セルの製造方法 |
JP2013531894A (ja) | 2010-06-24 | 2013-08-08 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | シリコン太陽電池の銀後部アノードの形成方法 |
JP5642591B2 (ja) * | 2011-02-28 | 2014-12-17 | 三洋電機株式会社 | 太陽電池モジュール |
US20120222721A1 (en) * | 2011-03-02 | 2012-09-06 | General Electric Company | Photovoltaic module package and fabrication method |
KR20120113548A (ko) * | 2011-04-05 | 2012-10-15 | 주식회사 엘지화학 | 식각 마스크 페이스트 및 이를 이용한 후면전극형 태양전지 |
US20130288425A1 (en) * | 2011-08-05 | 2013-10-31 | Solexel, Inc. | End point detection for back contact solar cell laser via drilling |
US20140360567A1 (en) * | 2011-08-05 | 2014-12-11 | Solexel, Inc. | Back contact solar cells using aluminum-based alloy metallization |
JPWO2013024829A1 (ja) * | 2011-08-12 | 2015-03-05 | 日立化成株式会社 | はんだ接着体、はんだ接着体の製造方法、素子、太陽電池、素子の製造方法および太陽電池の製造方法 |
JP2013051112A (ja) | 2011-08-31 | 2013-03-14 | Sharp Corp | 導電性ペースト、半導体装置用電極、半導体装置および半導体装置の製造方法 |
EP2754185A4 (en) * | 2011-09-09 | 2015-06-03 | Heraeus Precious Metals North America Conshohocken Llc | SOLAR CELL CONTACTS WITH SILVER PASTILLE |
KR20130050721A (ko) * | 2011-11-08 | 2013-05-16 | 삼성에스디아이 주식회사 | 태양 전지 |
KR101863294B1 (ko) * | 2011-11-25 | 2018-05-31 | 인텔렉츄얼 키스톤 테크놀로지 엘엘씨 | 태양전지 및 그 제조 방법 |
KR101356849B1 (ko) | 2012-03-15 | 2014-02-03 | 고려대학교 산학협력단 | 결정질 실리콘 태양 전지 및 이의 제조방법 |
TW201340347A (zh) * | 2012-03-22 | 2013-10-01 | Motech Ind Inc | 太陽能電池 |
KR101387718B1 (ko) * | 2012-05-07 | 2014-04-22 | 엘지전자 주식회사 | 태양 전지 및 이의 제조 방법 |
JP2014029963A (ja) * | 2012-07-31 | 2014-02-13 | Panasonic Corp | 太陽電池モジュール |
CN103151395A (zh) * | 2013-01-25 | 2013-06-12 | 友达光电股份有限公司 | 太阳能电池 |
JP6141223B2 (ja) * | 2013-06-14 | 2017-06-07 | 三菱電機株式会社 | 受光素子モジュールおよびその製造方法 |
CN105684159B (zh) * | 2013-10-25 | 2018-10-16 | 夏普株式会社 | 光电转换装置 |
KR101622090B1 (ko) | 2013-11-08 | 2016-05-18 | 엘지전자 주식회사 | 태양 전지 |
KR101620431B1 (ko) * | 2014-01-29 | 2016-05-12 | 엘지전자 주식회사 | 태양 전지 및 이의 제조 방법 |
KR102175893B1 (ko) * | 2014-02-24 | 2020-11-06 | 엘지전자 주식회사 | 태양 전지 모듈의 제조 방법 |
KR101867855B1 (ko) * | 2014-03-17 | 2018-06-15 | 엘지전자 주식회사 | 태양 전지 |
JP2015177175A (ja) * | 2014-03-18 | 2015-10-05 | シャープ株式会社 | 光電変換素子および光電変換素子の製造方法 |
US9349883B2 (en) * | 2014-06-19 | 2016-05-24 | E I Du Pont De Nemours And Company | Conductor for a solar cell |
US20160190365A1 (en) * | 2014-08-18 | 2016-06-30 | Solexel, Inc. | Photovoltaic solar module metallization and shade management connection and fabrication methods |
KR101551475B1 (ko) * | 2015-03-26 | 2015-09-08 | 주식회사 엘지화학 | 식각 마스크 페이스트 및 이를 이용한 후면전극형 태양전지 |
JP2015188089A (ja) * | 2015-04-30 | 2015-10-29 | 日立化成株式会社 | 素子及び太陽電池 |
US10217877B2 (en) * | 2015-07-27 | 2019-02-26 | Lg Electronics Inc. | Solar cell |
CN107980180B (zh) * | 2015-08-21 | 2023-03-21 | 夏普株式会社 | 太阳能电池 |
KR20170028548A (ko) * | 2015-09-04 | 2017-03-14 | 엘지전자 주식회사 | 태양 전지 모듈 |
JP6598608B2 (ja) | 2015-09-10 | 2019-10-30 | ホーチキ株式会社 | 消火栓装置 |
JP6559244B2 (ja) * | 2015-09-25 | 2019-08-14 | 三菱電機株式会社 | 太陽電池の製造方法および太陽電池 |
US20170098722A1 (en) * | 2015-10-01 | 2017-04-06 | Lg Electronics Inc. | Solar cell |
KR102570365B1 (ko) * | 2016-10-25 | 2023-08-23 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 고광전변환효율 태양전지 및 고광전변환효율 태양전지의 제조 방법 |
US11631779B2 (en) * | 2016-11-07 | 2023-04-18 | Shin-Etsu Chemical Co., Ltd. | Solar cell with high photoelectric conversion efficiency and method for manufacturing solar cell with high photoelectric conversion efficiency |
US10998463B2 (en) * | 2016-11-15 | 2021-05-04 | Shin-Etsu Chemical Co., Ltd. | High efficiency solar cell and method for manufacturing high efficiency solar cell |
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- 2017-06-26 JP JP2017124479A patent/JP6741626B2/ja active Active
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- 2018-05-07 US US16/623,872 patent/US11984522B2/en active Active
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