JP6788144B1 - 太陽電池モジュール、太陽電池及びその製造方法 - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 135
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 135
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- 239000004065 semiconductor Substances 0.000 claims abstract description 53
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 20
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Abstract
Description
好ましくは、前記第3の屈折率に対する前記第1の屈折率の比が、0.79〜0.87である。
好ましくは、前記第3の屈折率に対する前記第2の屈折率の比が、0.72〜0.77である。
好ましくは、前記第1の屈折率が、1.62〜1.71の範囲内である。
好ましくは、前記第2の屈折率が、1.48〜1.61の範囲内である。
好ましくは、前記第3の屈折率が、2.08〜2.11の範囲内である。
いくつかの実施例において、前記第2の屈折率の選択可能な範囲が、1.48〜1.61である。
いくつかの実施例において、前記第3の屈折率の選択可能な範囲が、2.08〜2.11である。
ステップS201は、半導体層(例えば、半導体層1)をテクスチャ処理するステップである。当該ステップにおいて、半導体層をテクスチャ処理するために、ウェットエッチング法を使用してもよいがこれに限られない。例えば、半導体層が単結晶シリコンである場合、水酸化カリウム溶液などのアルカリ性溶液を使用してテクスチャ処理する。また、例えば、半導体層が多結晶シリコンである場合、フッ化水素酸溶液などの酸性溶液を使用してテクスチャ処理する。
Claims (13)
- 半導体層と、前記半導体層の裏面に配置されたパッシベーション層とを備える太陽電池であって、
前記パッシベーション層は、第1の屈折率を有する第1の窒化酸化シリコン膜層と、前記第1の窒化酸化シリコン膜層の表面に配置され、第2の屈折率を有する第2の窒化酸化シリコン膜層と、前記第2の窒化酸化シリコン膜層の表面に配置され、第3の屈折率を有する少なくとも1層の窒化シリコン膜層とを有し、
前記第1の窒化酸化シリコン膜層と前記第2の窒化酸化シリコン膜層の合計厚さが60nm超であり、
前記窒化シリコン膜層全体の厚さが60nm超であり、且つ
前記パッシベーション層における各層の合計厚さが120nm超、且つ300nm未満であり、
前記第1の屈折率が前記第2の屈折率より大きく、前記第3の屈折率より小さく、
前記第1の窒化酸化シリコン膜層の厚さは30〜40nmであり、前記第1の屈折率は1.64〜1.67であり、
前記第2の窒化酸化シリコン膜層の厚さは40〜60nmであり、前記第2の屈折率は1.54〜1.58であることを特徴とする太陽電池。 - 前記第2の屈折率に対する前記第1の屈折率の比が、1.03〜1.21の範囲内に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3の屈折率に対する前記第1の屈折率の比が、0.79〜0.87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3の屈折率に対する前記第2の屈折率の比が、0.72〜0.77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3の屈折率の範囲が、2.08〜2.11であることを特徴とする請求項1に記載の太陽電池。
- 少なくとも請求項1〜5のいずれか一項に記載の太陽電池を含み、
前記太陽電池は、受光した光エネルギーを電気エネルギーに変換することを特徴とする太陽電池モジュール。 - 第1の屈折率を有する第1の窒化酸化シリコン膜層と、第2の屈折率を有する第2の窒化酸化シリコン膜層と、第3の屈折率を有する少なくとも1層の窒化シリコン膜層とを半導体層の裏面にこの順に堆積して、共同してパッシベーション層を形成することを含み、
前記第1の窒化酸化シリコン膜層と第2の窒化酸化シリコン膜層の合計厚さが60nm超であり、前記窒化シリコン膜層全体の厚さが60nm超であり、且つ前記パッシベーション層における各層の合計厚さが120nm超、且つ300nm未満であり、
前記第1の屈折率が前記第2の屈折率より大きく、前記第3の屈折率より小さく、
前記第1の窒化酸化シリコン膜層の厚さは30〜40nmであり、前記第1の屈折率は1.64〜1.67であり、
前記第2の窒化酸化シリコン膜層の厚さは40〜60nmであり、前記第2の屈折率は1.54〜1.58であることを特徴とする太陽電池の製造方法。 - 前記第1の窒化酸化シリコン膜層を堆積する時に、反応物はシラン、笑気ガスおよびアンモニアガスであり、前記シランの流量が310〜380sccm、前記笑気ガスの流量が5000〜6000sccm、前記アンモニアガスの流量が1600〜2600sccmであり、堆積温度が480〜510℃であり、電力が9000〜9500Wであ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2の窒化酸化シリコン膜層を堆積する時に、反応物はシラン、笑気ガスおよびアンモニアガスであり、前記シランの流量が280〜320sccm、前記笑気ガスの流量が6000〜7000sccm、前記アンモニアガスの流量が300〜800sccmであり、堆積温度が480〜510℃であり、電力が9000〜9500Wであ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。
- 前記窒化シリコン膜層を堆積する時に、反応物はシランおよびアンモニアガスであり、前記シランの流量が800〜1420sccm、前記アンモニアガスの流量が4000〜10000sccmであり、堆積温度が480〜510℃であり、電力が8500〜9500Wであ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2の屈折率に対する前記第1の屈折率の比が、1.03〜1.21の範囲内にあ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3の屈折率に対する前記第1の屈折率の比が、0.79〜0.87であ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3の屈折率に対する前記第2の屈折率の比が、0.72〜0.77であ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。
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EP4053918A4 (en) * | 2021-01-19 | 2022-09-14 | Changzhou Trina Solar Energy Co., Ltd. | LAMINATED PASSIVATION LAYER OF A SOLAR CELL AND PROCESS FOR ITS MANUFACTURE |
JP6916972B1 (ja) * | 2021-02-23 | 2021-08-11 | ジョジアン ジンコ ソーラー カンパニー リミテッド | 太陽電池およびその製造方法、太陽電池モジュール |
JP2022128577A (ja) * | 2021-02-23 | 2022-09-02 | ジョジアン ジンコ ソーラー カンパニー リミテッド | 太陽電池およびその製造方法、太陽電池モジュール |
US11605748B2 (en) | 2021-02-23 | 2023-03-14 | Zhejiang Jinko Solar Co., Ltd. | Solar cell, method for producing same and solar module |
US11749768B2 (en) | 2021-02-23 | 2023-09-05 | Zhejiang Jinko Solar Co., Ltd. | Solar cell, method for producing same and solar module |
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EP3916814B1 (en) | 2022-08-24 |
ES2926597T3 (es) | 2022-10-27 |
AU2020203992B1 (en) | 2021-02-25 |
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CN111668317B (zh) | 2021-09-24 |
JP2021190672A (ja) | 2021-12-13 |
PL3916814T3 (pl) | 2022-11-07 |
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