JP2012522403A - 光起電力電池、及び、半導体層スタックにおいて光補足を高める方法 - Google Patents
光起電力電池、及び、半導体層スタックにおいて光補足を高める方法 Download PDFInfo
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Abstract
【選択図】図なし
Description
この出願は、「光起電力電池、及び、薄膜シリコンにおいて光捕捉を高める方法(Photovoltaic Cells And Methods To Enhance Light Trapping In Thin Film Silicon)」と題された同時係属中の米国仮特許出願第61/176,072号(「’072出願」)の非仮特許出願であり、該仮出願の優先権の利益を主張する。’072出願は2009年5月6日に提出された。’072出願の全開示は、本明細書において言及することによってそっくりそのまま組み込まれている。
Claims (19)
- 基材と、
前記基材の上に配置された半導体層スタックと、
前記基材と前記半導体層スタックとの間の反射性導電性電極層と、
前記基材と前記電極層との間の凹凸テンプレート層と含む光起電力電池であって、
前記テンプレート層は、前記電極層に所定の形状を与える波形の上面を有し、
前記電極層は、前記所定の形状に基づいて光を半導体層スタックの中へ戻すように反射することを特徴とする光起電力電池。 - 前記テンプレート層は、前記テンプレート層の波形の上面を提供するピーク構造、谷構造、又は、円形構造の1つ又はそれ以上の配列を含むこと特徴とする請求項1に記載の光起電力電池。
- 前記基材から遠ざかるように突出するか又は前記基材の中へ凹む構造であって、隣接する前記構造間の所定のピッチ、所定のベース幅、又は、所定の高さの1つ又はそれ以上を有する構造によって、前記テンプレート層の波形の上面が決定されることを特徴とする請求項1に記載の光起電力電池。
- 前記構造のピッチ、ベース幅又は高さの1つ以上が、前記半導体層スタックの結晶構造に基づいていることを特徴とする請求項3に記載の光起電力電池。
- 前記構造のピッチ、ベース幅又は高さの1つ以上が、前記半導体層スタックの中へ戻るように反射する光の波長に基づいていることを特徴とする請求項3に記載の光起電力電池。
- 前記テンプレート層が下部テンプレート層であり、前記半導体層スタックが下部半導体層スタックであり、
前記光起電力電池は、上部電極と下部半導体層スタックとの間の上部半導体層スタック、及び、下部半導体層スタックと上部半導体層スタックとの間の上部テンプレート層をさらに含むことを特徴とする請求項1に記載の光起電力電池。 - 互いに分離され、かつ、前記基材と前記下部電極との間に配置された複数の不連続な島状構造体が前記テンプレート層に含まれていることを特徴とする請求項1に記載の光起電力電池。
- 基材と、
前記基材の上に配置された半導体層スタックと、
前記基材と前記半導体層スタックとの間に配置された電極層とを含む光起電力電池であって、
前記電極層が、反射層と光透過性導電性層とを含み、
前記導電層が、入射光を反射層の中へ戻すように散乱させる波形の上面を含み、
前記反射層は、光が前記導電層によって散乱された後に、その光を半導体層スタックの中へ戻すように反射することを特徴とする光起電力電池。 - 前記導電層が、波形の上面を提供するピーク構造、谷構造、又は、円形構造の1つ又はそれ以上の配列を含むことを特徴とする請求項8に記載の光起電力電池。
- 前記基材から遠ざかるように突出するか又は前記基材の中へ凹む構造であって、隣接する前記構造間の所定のピッチ、所定のベース幅、又は、所定の高さの1つ又はそれ以上を有する構造によって、前記波形の上面が決定されることを特徴とする請求項8に記載の光起電力電池。
- 前記構造のピッチ、ベース幅又は高さの1つ以上が、前記半導体層スタックの結晶構造に基づいていることを特徴とする請求項10に記載の光起電力電池。
- 前記構造のピッチ、ベース幅又は高さの1つ又はそれ以上が、前記反射層によって前記半導体層スタックの中へ戻るように反射する光の波長に基づいていることを特徴とする請求項10に記載の光起電力電池。
- 所定の波形の上面を有する基材と、
前記基材の上に配置された半導体層スタックと、
前記基材の上面と前記半導体層スタックとの間の反射性導電性電極層と、含む光起電力電池であって、
前記基材の波形の上面が、前記電極層に所定の形状を与え、
前記電極層が、前記所定の形状に基づいて光を前記半導体層スタックの中へ戻すように反射することを特徴とする光起電力電池。 - 前記基材が、前記基材の波形の上面を提供するピーク構造、谷構造、又は、円形構造の1つ又はそれ以上の配列を含むことを特徴とする請求項13に記載の光起電力電池。
- 前記基材から遠ざかるように突出するか又は前記基材の中へ凹む構造であって、隣接する前記構造間の所定のピッチ、所定のベース幅、又は、所定の高さの1つ又はそれ以上を有する構造によって、前記基材の波形の表面が決定されることを特徴とする請求項13に記載の光起電力電池。
- 前記構造のピッチ、ベース幅又は高さの1つ以上が、前記半導体層スタックの結晶構造に基づいていることを特徴とする請求項15に記載の光起電力電池。
- 前記構造のピッチ、ベース幅又は高さは、前記半導体層スタックが微晶質層を含む場合に小さくなり、前記半導体層スタックが非晶質層を含む場合に大きくなることを特徴とする請求項16に記載の光起電力電池。
- 前記構造のピッチ、ベース幅又は高さの1つ以上が、前記半導体層スタックの中へ戻るように反射する光の波長に基づいていることを特徴とする請求項15に記載の光起電力電池。
- 前記半導体層スタックが、前記基材の上面に基づいた形状を有することを特徴とする請求項13に記載の光起電力電池。
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Also Published As
Publication number | Publication date |
---|---|
KR101319674B1 (ko) | 2013-10-17 |
EP2356696A2 (en) | 2011-08-17 |
WO2010129163A2 (en) | 2010-11-11 |
KR20110112455A (ko) | 2011-10-12 |
CN102272944A (zh) | 2011-12-07 |
US20100282314A1 (en) | 2010-11-11 |
WO2010129163A3 (en) | 2011-03-10 |
EP2356696A4 (en) | 2013-05-15 |
WO2010129163A9 (en) | 2011-01-13 |
CN102272944B (zh) | 2013-08-14 |
TW201044614A (en) | 2010-12-16 |
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