JP2004520713A5 - - Google Patents

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JP2004520713A5
JP2004520713A5 JP2002561294A JP2002561294A JP2004520713A5 JP 2004520713 A5 JP2004520713 A5 JP 2004520713A5 JP 2002561294 A JP2002561294 A JP 2002561294A JP 2002561294 A JP2002561294 A JP 2002561294A JP 2004520713 A5 JP2004520713 A5 JP 2004520713A5
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doping
incident light
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JP2004520713A (ja
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Priority claimed from DE10104726A external-priority patent/DE10104726A1/de
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Claims (23)

  1. 入射光側に選択エミッター層を有する太陽電池の作成方法において:
    入射光側と裏側とを有するp−ドーピングされた珪素−ウェファーを作成し;
    p−ドーピングされた珪素−ウェファーの入射光側に酸化物層を生ぜしめ;
    酸化物層を構造化して構造化領域を形成させ、ここでスクリーンプリントにより酸化物エッチング成分を含有するスクリーンプリントペーストをステンシルにより酸化物層に印刷すると共に印刷されたスクリーンプリントペーストを所定の作用時間の後に再び除去し;
    選択高n−ドーピングを構造化領域に導入して選択エミッター層を形成させ;
    酸化物層を除去し;
    全平面的に弱いn−ドーピングを選択高n−ドーピングの上に導入し;
    入射光側を選択高n−ドーピングの領域にて接触させる
    ことを特徴とする太陽電池の作成方法。
  2. 酸化物エッチング成分が弗化水素酸(HF)および/または弗化アンモニウム(NH4 F)および/または弗化水素アンモニウム(NH4 HF2 )からなることを特徴とする請求項1に記載の方法。
  3. 酸化物エッチング成分がスクリーンプリントペーストに対し10〜20容量%の割合を占めることを特徴とする請求項1または2に記載の方法。
  4. 作用時間が30秒〜2分間であることを特徴とする請求項1〜3のいずれか一項に記載の方法。
  5. 入射光側の接触をスクリーンプリントにより行う請求項1〜4のいずれか一項に記載の方法。
  6. 燐−ドーピングによりn−ドーピングを導入することを特徴とする1〜5のいずれか一項に記載の方法。
  7. 燐−ドーピングの導入に際し生ずるホスホルガラス(POCl3 )をその後にエッチング工程にて再び除去することを特徴とする請求項1〜6のいずれか一項に記載の方法。
  8. 裏側をスクリーンプリントペーストと接触させることを特徴とする請求項1〜7のいずれか一項に記載の方法。
  9. 珪素−ウェファーの裏側にバック−サーフェス−フィールドを更に生ぜしめ、ここでp−ドーピングされた珪素−ウェファーに酸化物層を生ぜしめる前に、硼素をドーピング材として含有する拡散膨潤層を珪素−ウェファーの裏側に塗布すると共に、珪素−ウェファーを酸素含有雰囲気下に900〜1200℃の温度で処理して酸化物層を得ると共にドーピング材を導入する請求項1〜8のいずれか一項に記載の方法。
  10. 拡散膨潤層を、全平面的に弱いn−ドーピングの導入前に除去する請求項9に記載の方法。
  11. ウェファーの縁部にてn−ドーピングを解く工程を更に含む請求項9または10に記載の方法。
  12. 裏側接触部を裏側に施す請求項9〜11のいずれか一項に記載の方法。
  13. 拡散膨潤層として硼素ドーピングラッカーまたは硼素ドーピングペーストを施すことを特徴とする請求項9〜12のいずれか一項に記載の方法。
  14. 拡散膨潤層および酸化物層をHF溶液でのエッチングにより除去する請求項9〜13のいずれか一項に記載の方法。
  15. ウェファーの縁部におけるn−ドーピングの切除を外側縁部のエッチングにより行う請求項11に記載の方法。
  16. 裏側を1〜3重量%のアルミニウムを含有する銀スクリーンプリントペーストと接触させることを特徴とする請求項9〜15のいずれか一項に記載の方法。
  17. 領域における裏側を、裏接触部で覆われた領域の間にて硼素ドーピングを平面的n−ドーピングで補償するよう接触させることを特徴とする請求項12に記載の方法。
  18. 反射防止層を入射光側に塗布すると共に、不働化層を裏側に塗布することを特徴とする請求項9〜17のいずれか一項に記載の方法。
  19. 酸化物層を構造化させるため、結合剤と酸化物エッチング成分とを有するスクリーンプリントペーストを使用する請求項1〜18のいずれか一項に記載の方法。
  20. 酸化物層を構造化させるため、10〜500Pa.s、好ましくは50〜200Pa.sの粘度を有するスクリーンプリントペーストを使用する請求項1〜19のいずれか一項に記載の方法。
  21. 結合剤がタペストリーペーストからなる請求項19に記載の方法。
  22. 結合剤がエポキシド樹脂からなる請求項19に記載の方法。
  23. 入射光側と裏側とを有するドーピングされた珪素−ウェファーを備える太陽電池において、入射光側は接触部を施した選択エミッター構造を有し、珪素−ウェファーの入射光側の領域には接触部の下方にて高n−ドーピングが設けられると共に、入射光側の他の領域には弱いn−ドーピングが設けられることを特徴とする太陽電池。
JP2002561294A 2001-02-02 2002-02-01 選択エミッター層を有する太陽電池 Pending JP2004520713A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10104726A DE10104726A1 (de) 2001-02-02 2001-02-02 Verfahren zur Strukturierung einer auf einem Trägermaterial aufgebrachten Oxidschicht
PCT/EP2002/001096 WO2002061854A2 (de) 2001-02-02 2002-02-01 Verfahren zur strukturierung einer auf einem trägermaterial aufgebrachten oxidschicht

Publications (2)

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JP2004520713A JP2004520713A (ja) 2004-07-08
JP2004520713A5 true JP2004520713A5 (ja) 2005-06-23

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US (1) US7129109B2 (ja)
EP (1) EP1390987B1 (ja)
JP (1) JP2004520713A (ja)
CN (1) CN1316638C (ja)
AT (1) ATE346382T1 (ja)
AU (1) AU2002244699B2 (ja)
DE (2) DE10104726A1 (ja)
WO (1) WO2002061854A2 (ja)

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