JP2011518422A5 - - Google Patents

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JP2011518422A5
JP2011518422A5 JP2010538044A JP2010538044A JP2011518422A5 JP 2011518422 A5 JP2011518422 A5 JP 2011518422A5 JP 2010538044 A JP2010538044 A JP 2010538044A JP 2010538044 A JP2010538044 A JP 2010538044A JP 2011518422 A5 JP2011518422 A5 JP 2011518422A5
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Prior art keywords
light absorption
absorption layer
solar cell
back contact
silicon nitride
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JP2010538044A
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JP2011518422A (ja
JP5221674B2 (ja
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Priority claimed from US12/325,878 external-priority patent/US8198528B2/en
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Claims (12)

  1. 裏面コンタクト太陽電池を製造する方法であって、
    前記裏面コンタクト太陽電池の正面側のシリコン基板の表面にテクスチャ加工を施してテクスチャ加工された正面側の表面を生成する工程と、
    前記テクスチャ加工された正面側の表面の上に、二酸化シリコンを含むパッシベーションレベルを形成する工程と、
    前記パッシベーションレベルの上に高kシリコン窒化物層を形成する工程と、
    前記高kシリコン窒化物層の上に低kシリコン窒化物層を形成する工程とを備え、
    前記裏面コンタクト太陽電池は前記正面とは反対の裏面上に、複数の拡散領域と、前記複数の拡散領域に電気的に連結された複数の金属コンタクトとを含み、前記正面は通常動作において太陽側を向き、太陽放射を収集し、
    前記高kシリコン窒化物層は、前記正面から前記シリコン基板へ入射するUV放射の少なくとも10%を遮光する方法。
  2. 前記高kシリコン窒化物層は、400nm以下の波長の光に対して少なくとも0.03の消衰係数を有し、前記低kシリコン窒化物層は、400nm以上の波長の光に対して多くとも0.03の消衰係数を有する請求項1に記載の方法。
  3. 前記シリコン基板は、N型シリコン基板を含む請求項1または2に記載の方法。
  4. 前記パッシベーションレベルは、熱成長した二酸化シリコンを含む請求項1から3の何れか1項に記載の方法。
  5. 前記高kシリコン窒化物は、1nmから100nmの範囲の厚みを有する請求項1から4の何れか1項に記載の方法。
  6. 裏面コンタクト太陽電池であって、
    前記裏面コンタクト太陽電池の正面側のシリコン基板上のテクスチャ加工された表面と、
    前記テクスチャ加工された表面上に形成されたパッシベーションレベルと、
    前記パッシベーションレベル上に形成された高光吸収層と、
    前記高光吸収層上に形成された低光吸収層とを備え、
    前記正面は通常動作において太陽側を向き、太陽放射を収集し、
    前記高光吸収層は、前記正面から前記シリコン基板へ入射するUV放射の少なくとも10%を遮光する裏面コンタクト太陽電池。
  7. 前記高光吸収層は、400nm以下の波長の光に対して少なくとも0.03の消衰係数を有し、前記低光吸収層は、400nm以上の波長の光に対して多くとも0.03の消衰係数を有する請求項6に記載の裏面コンタクト太陽電池。
  8. 前記高光吸収層は、400nm以下の波長の光に対して少なくとも0.03の消衰係数を有する高kシリコン窒化物を有する請求項6または7に記載の裏面コンタクト太陽電池。
  9. 前記高光吸収層は、1nmから100nmの範囲の厚みに形成された高kシリコン窒化物を有する請求項6から8の何れか1項に記載の裏面コンタクト太陽電池。
  10. 裏面コンタクト太陽電池を製造する方法であって、
    前記裏面コンタクト太陽電池の太陽電池基板の正面側の表面にテクスチャ加工を施してテクスチャ加工された正面側の表面を生成する工程と、
    前記テクスチャ加工された正面側の表面の上に、パッシベーションレベルを形成する工程と、
    前記パッシベーションレベルの上に高光吸収層を形成する工程と、
    前記高光吸収層の上に低光吸収層を形成する工程とを備え、
    前記正面は通常動作において太陽側を向き、太陽放射を収集し、
    前記高光吸収層は、前記正面から前記基板へ入射するUV放射の少なくとも10%を遮光する方法。
  11. 前記基板はN型シリコンを含む請求項10に記載の方法。
  12. 前記高光吸収層は、1nmから100nmの範囲の厚みに形成された高kシリコン窒化物を有する請求項10または11に記載の方法。
JP2010538044A 2007-12-14 2008-12-02 裏面コンタクト太陽電池用の高光吸収層を有する反射防止膜 Active JP5221674B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US775807P 2007-12-14 2007-12-14
US61/007,758 2007-12-14
US12/325,878 US8198528B2 (en) 2007-12-14 2008-12-01 Anti-reflective coating with high optical absorption layer for backside contact solar cells
US12/325,878 2008-12-01
PCT/US2008/085241 WO2009079199A1 (en) 2007-12-14 2008-12-02 Anti-reflective coating with high optical absorption layer for backside contact solar cells

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JP2013045365A Division JP5478750B2 (ja) 2007-12-14 2013-03-07 裏面コンタクト太陽電池用の高光吸収層を有する反射防止膜

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JP2011518422A JP2011518422A (ja) 2011-06-23
JP2011518422A5 true JP2011518422A5 (ja) 2012-01-19
JP5221674B2 JP5221674B2 (ja) 2013-06-26

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JP2013045365A Active JP5478750B2 (ja) 2007-12-14 2013-03-07 裏面コンタクト太陽電池用の高光吸収層を有する反射防止膜

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US (3) US8198528B2 (ja)
EP (1) EP2220688A1 (ja)
JP (2) JP5221674B2 (ja)
KR (1) KR101513758B1 (ja)
CN (2) CN101897032B (ja)
WO (1) WO2009079199A1 (ja)

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