JP2015503241A - 光起電力セルを形成する方法 - Google Patents
光起電力セルを形成する方法 Download PDFInfo
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- 239000000463 material Substances 0.000 claims description 45
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- 229910052709 silver Inorganic materials 0.000 claims description 24
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- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
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- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
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- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0512—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module made of a particular material or composition of materials
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- H01L31/03928—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes including thin films deposited on metallic or insulating substrates ; characterised by specific substrate materials or substrate features or by the presence of intermediate layers, e.g. barrier layers, on the substrate comprising a flexible substrate including AIBIIICVI compound, e.g. CIS, CIGS deposited on metal or polymer foils
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- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
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Abstract
Description
光起電力セルのための裏面電極として機能できる導電性基板と、
基板の前面の光活性部分と、
基板の光活性部分の反対側の前面電気収集システムと、
基板の裏面に電気的に接続している、外面を有する少なくとも1つの第1の電気的接続要素と、
前面電気収集システムに電気的に接続している、外面を有する少なくとも1つの第2の電気的接続要素と
を含み、
基板の裏面、金属もしくは金属合金である場合には電気収集システムの上面、および電気的接続要素の外面はそれぞれ、各々が他の面に使用されている材料の電位と0.1V以下、好ましくは0.05V以下異なる電位を有する(すなわち、基板の裏面および電気的接続要素の外面、および金属製である場合には前面電気収集システムの上面の各々に使用される材料の電位は互いに0.1V以下異なる)材料から形成される、光起電力物品である。
上面の銀スクリーン印刷グリッド(電気収集システム)およびMo被覆バック接点を有する導電性基板電極を含む寸法100×210mmのCIGSセルを得た。スパーテルを使用して、ステンシルを通して一直線に、Engineered Conductive Materials製の銀充填導電性接着剤(ECA)、DB1541−Sを塗布した。堆積したECAラインは約2mm×90mmであり、これをセルの上面電極上のAgスクリーン印刷バスバー上の3つの領域に等しく適用した。ステンシルを除去し、Sn被覆金属リボンをECAの長さに沿ってECA分配領域の各々の上面に配置して、結果としてリボンの一端がセルの縁を越えて拡張するようにした。高温ポリイミドテープの小片をリボンの下のセル縁に適用してリボンとセルの縁の接触を避けた。第2の高温ポリイミドテープの長片をリボンの長さに沿って適用してECAが硬化するまでリボンを定位置に固定した。スパーテルを使用して、ステンシルを通して一直線に、Emerson and Cummings製の第2の銀充填導電性接着剤(ECA)、CE3103WLVを塗布した。堆積したECAラインは約2mm×75mmであり、これをセルの裏面電極上の3つの領域に等しく適用した。ステンシルを除去し、Sn被覆金属リボンをECAの長さに沿ってECA分配領域の各々の上面に配置して、結果としてリボンの一端がセルの縁を越えて拡張するようにした。高温ポリイミドテープの長片をリボンの長さに沿って適用してECAが硬化するまでリボンを定位置に固定した。全ての相互接続リボンは2.5mm幅であり、約0.1mmの厚さを有していた。次いで、セルを2枚の強化ガラスの間に置き、180℃に予熱した実験室オーブンに入れた。セルをオーブン中に40分間入れたままにしてECAの制御された硬化を許した。40分後、試料をオーブンから取り出し、ポリイミドテープをリボンの各々から除去した。
上面上の銀スクリーン印刷グリッド(電気収集システム)およびMo被覆バック接点を有する導電性基板電極を含む寸法100×210mmのCIGSセルを得た。スパッタリング技術を使用して裏面電極を銀の薄層でめっきした。スパーテルを使用して、ステンシルを通して一直線に、Engineered Conductive Materials製の銀充填導電性接着剤(ECA)、DB1541−Sを塗布した。堆積したECAラインは約2mm×90mmであり、これをセルの上面電極上のAgスクリーン印刷バスバー上の3つの領域に等しく適用した。ステンシルを除去し、Ag被覆金属リボンをECAの長さに沿ってECA分配領域の各々の上面に配置して、結果としてリボンの一端がセルの縁を越えて拡張するようにした。高温ポリイミドテープの小片をリボンの下のセル縁に適用してリボンとセルの縁の接触を避けた。第2の高温ポリイミドテープの長片をリボンの長さに沿って適用してECAが硬化するまでリボンを定位置に固定した。スパーテルを使用して、ステンシルを通して一直線に、Emerson and Cummings製の第2の銀充填導電性接着剤(ECA)、CE3103WLVを塗布した。堆積したECAラインは約2mm×75mmであり、これをセルのAgめっき裏面電極上の3つの領域に等しく適用した。ステンシルを除去し、Ag被覆金属リボンをECAの長さに沿ってECA分配領域の各々の上面に配置して、結果としてリボンの一端がセルの縁を越えて拡張するようにした。高温ポリイミドテープの長片をリボンの長さに沿って適用してECAが硬化するまでリボンを定位置に固定した。全ての相互接続リボンは2.5mm幅であり、約0.1mmの厚さを有していた。次いで、セルを2枚の強化ガラスの間に置き、180℃に予熱した実験室オーブンに入れた。セルをオーブン中に40分間入れたままにしてECAの制御された硬化を許した。40分後、試料をオーブンから取り出し、ポリイミドテープをリボンの各々から除去した。
Claims (8)
- i)
a.光起電力セルのための裏面電極として機能できる導電性基板と、
b.前記基板の前面の光活性部分と、
c.前記基板の前記光活性部分の反対側の前面電気収集システムと
を含む光起電力セルと、
ii)前記基板の裏面に電気的に接続している、外面を有する少なくとも1つの第1の電気的接続要素と、
iii)前記前面電気収集システムに電気的に接続している、外面を有する少なくとも1つの第2の電気的接続要素と
を含み、
前記基板の前記裏面、前記前面電気収集システムの一部である任意の金属面、および前記電気的接続要素の前記外面はそれぞれ、他の面に使用されている材料と0.1V以下異なる電位を有する材料から形成される、光起電力物品。 - 前記前面電気収集システムが金属グリッドを含む、請求項1記載の物品。
- 前記第1および第2の電気的接続要素の少なくとも1つが、ポリマーマトリックス中に金属粒子を含む導電性接着剤を使用して前記裏面または前記前面電気収集システムの少なくとも1つに接合されており、前記金属粒子が他の面に使用されている材料と0.1V以下異なる電位を有する材料の外面を有する、請求項1または2のいずれかに記載の物品。
- 少なくとも2つの隣接する前記光起電力セルと、外面を有する前記少なくとも1つの第1の電気的接続要素とが存在し、あるセルの前記基板の裏面に接合している該要素が前記隣接するセルの前記前面電気収集システムに接合している、請求項1〜3のいずれか一項に記載の物品。
- 露出金属面が同じ金属または同じ金属合金でできている、請求項1〜4のいずれか一項に記載の物品。
- 前記金属が銀である、請求項5記載の物品。
- 前記前面電気収集システムが、前記セルの縁を越えて拡張して前記隣接するセルの裏面に接合して、結果として前記第1または第2の電気的接続要素の1つとして機能するワイヤメッシュを含む、請求項1〜6のいずれか一項に記載の物品。
- 前記第2の電気的相互接続要素が、隣接するセルの裏面まで拡張する1つまたは複数のリボンを含む、請求項1〜6のいずれか一項に記載の物品。
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