JP2004320033A - 高ミスカット角度の基体上に成長された多接合光起電セル - Google Patents
高ミスカット角度の基体上に成長された多接合光起電セル Download PDFInfo
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- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
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- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/184—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof the active layers comprising only AIIIBV compounds, e.g. GaAs, InP
- H01L31/1844—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof the active layers comprising only AIIIBV compounds, e.g. GaAs, InP comprising ternary or quaternary compounds, e.g. Ga Al As, In Ga As P
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Abstract
【解決手段】本発明は光起電セル不規則にされた第III 族サブ格子ベースを含むGaInPサブセル20と、GaInPサブセル20の下に配置されたGa(In)Asのサブセル40と、Ga(In)Asのサブセルの下に配置された半導体成長基体60とを備え、半導体成長基体60は最も近い(111)結晶平面に向かって約8度乃至40度の範囲の角度で(100)平面から外れた方位の表面を有している。
【選択図】 図1
Description
Suzuki、外“Sublattice Ordering in GaInP and AlGaInP:Effects of Substrate Orientation ”およびKurtz,外“Competing Kinetic and Thermodynamic Processes in Growth and Ordering of Ga0.5 In0.5 P ”
しかしながら、これらの文献のいずれにも通常のミスカット基体上ではなく、高いミスカット角度の基体上に成長された高い効率のMJ光起電セルは記載されていない。
GaInP/Ga(In)As/GaInNAs;GaInP(薄)/GaInP(As)(厚)/Ga(In)As;GaInP(薄)/GaInP(As)(厚)/Ga(In)As/GaInNAs。
- ウインドウ層およびエミッタ層中のドープレベル、含有および活性化割合の増加(例えば、n型GaInP中間セルウインドウ層におけるSi,Se,またはTeのドープ、n型GaInP上部セルエミッタにおけるSi,Se,またはTeのドープ、およびp型AlGaInPまたはAlInP上部セルBSFのZnドープ);
- Ga(In)Asベース中の少数キャリア寿命時間の増加、特に、時間分解フォトルミネセンスにより測定された通常の6度のミスカット基体に比較して、Ga(In)Asまたは15.8度のミスカットのGe基体に格子整合されたサブセルの1%In組成に対して、
- 照明されたIV測定により測定された通常の6度のミスカット基体に比較して、15.8度のミスカットのGe基体上のGa(In)As光起電セル電圧の増加;
- 成長した半導体層の表面の形態学的改善、減少された表面欠陥、減少された霞;
- 増加されたGaの粘着係数によるGaInPの成長速度の増加;
- 機械的強度の改善およびそれによる装置の製造プロセスを通じての生産性の改善;
- GaAsP、GaAsSb、GaPSbのようなV族サブ格子上の不規則または規則的な配置の影響;
- II-VI 族半導体のII族またはVI族サブ格子上の不規則または規則的な配置の影響;
- SiGeのような混合されたIV族半導体のIV族元素の不規則または規則的な配置の影響;
- I-III-VI 族半導体のようなI族、III 族およびVI族サブ格子の不規則または規則的な配置の影響;
- {110}のような{111}以外の平面の方向にGaAsのようなIII-V族化合物基体上に成長された場合に(111)A平面または(111)B平面の方向に、もっとも近い{111}平面の方向に(100)平面の方向をずらせ、或いは、一般的には{111}平面の間の連続平面の方向に方位をずらせる;
- Ge,Si,SiGe、GaAs、GaP、GaSb、InP、InAs、InSb、SiC、Al2 O3 、CdTe,ZnTe,ZnSe,CdS,ZnS,ZnOのような種々の基体上の成長。
Claims (8)
- 不規則にされた第III 族サブ格子ベースを含むGaInPサブセル(20)と、
前記GaInPサブセル(20)の下に配置されたGa(In)Asのサブセル(40)と、
前記Ga(In)Asのサブセルの下に配置された半導体成長基体(60)とを具備し、
前記半導体成長基体(60)は最も近い(111)結晶平面に向かって約8度乃至40度の範囲の角度で(100)平面から外れた方位の表面を有している光起電セル。 - 前記半導体成長基体は、最も近い(111)結晶平面に向かって約14度乃至18度の角度で(100)平面から外れた方位の表面を有している請求項1記載の光起電セル。
- 前記半導体成長基体は、最も近い(111)結晶平面に向かって約16度の角度で(100)平面から外れた方位の表面を有している請求項1または2記載の光起電セル。
- 前記半導体成長基体は、最も近い(111)結晶平面に向かって約15.8度の角度で(100)平面から外れた方位の表面を有している請求項1乃至3のいずれか1項記載の光起電セル。
- 前記表面は(115)表面を有している請求項1乃至4のいずれか1項記載の光起電セル。
- 前記半導体成長基体は、Ge基体である請求項1乃至5のいずれか1項の光起電セル。
- 前記Ge基体はまた多接合光起電セルのアクチブなサブセルである請求項6記載の光起電セル。
- 前記半導体成長基体は、GaAs基体である請求項1乃至5のいずれか1項記載の光起電セル。
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US10/413,906 US7812249B2 (en) | 2003-04-14 | 2003-04-14 | Multijunction photovoltaic cell grown on high-miscut-angle substrate |
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Also Published As
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US20040200523A1 (en) | 2004-10-14 |
US20110011983A1 (en) | 2011-01-20 |
EP1469528B1 (en) | 2019-11-13 |
US7812249B2 (en) | 2010-10-12 |
EP1469528A3 (en) | 2009-01-14 |
EP1469528A2 (en) | 2004-10-20 |
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