JP4064340B2 - 集積型薄膜太陽電池の製造方法 - Google Patents
集積型薄膜太陽電池の製造方法 Download PDFInfo
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- H10F10/10—Individual photovoltaic cells, e.g. solar cells having potential barriers
- H10F10/16—Photovoltaic cells having only PN heterojunction potential barriers
- H10F10/167—Photovoltaic cells having only PN heterojunction potential barriers comprising Group I-III-VI materials, e.g. CdS/CuInSe2 [CIS] heterojunction photovoltaic cells
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- H10F19/30—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells
- H10F19/31—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells having multiple laterally adjacent thin-film photovoltaic cells deposited on the same substrate
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- H10F19/30—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells
- H10F19/31—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising thin-film photovoltaic cells having multiple laterally adjacent thin-film photovoltaic cells deposited on the same substrate
- H10F19/33—Patterning processes to connect the photovoltaic cells, e.g. laser cutting of conductive or active layers
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- H10F77/126—Active materials comprising only Group I-III-VI chalcopyrite materials, e.g. CuInSe2, CuGaSe2 or CuInGaSe2 [CIGS]
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- H10F77/10—Semiconductor bodies
- H10F77/16—Material structures, e.g. crystalline structures, film structures or crystal plane orientations
- H10F77/169—Thin semiconductor films on metallic or insulating substrates
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- H—ELECTRICITY
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- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/16—Material structures, e.g. crystalline structures, film structures or crystal plane orientations
- H10F77/169—Thin semiconductor films on metallic or insulating substrates
- H10F77/1694—Thin semiconductor films on metallic or insulating substrates the films including Group I-III-VI materials, e.g. CIS or CIGS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/541—CuInSe2 material PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
前記前記金属裏面電極層の一部を細線状に除去することによりパターニング(パターンを形成)する第1のパターニング工程と、
前記第1のパターニング工程で形成されるパターンを基準位置として一定間隔オフセットして前記光吸収層の一部又は前記光吸収層とバッファ層の一部を細線状に除去することによりパターニング(パターンを形成)する第2のパターニング工程と、
前記第1のパターニング工程又は第2のパターニング工程で形成されるパターンを基準位置として一定間隔オフセットして前記光吸収層とバッファ層と窓層の一部を細線状に除去することによりパターニング(パターンを形成)する第3のパターニング工程とからなり、
前記第2のパターニング工程及び第3のパターニング工程は、先端が尖った金属針により、対象とする積層薄膜層の一部を機械的に引っ掻くようにして除去するメカニカル・スクライビング法により実施し、前記光吸収層形成過程で、金属裏面電極層の表面に副次的に生成する極薄膜層を固体潤滑剤として用い、金属針の先端を滑らせて、前記光吸収層までの各層を機械的に引っ掻くようにして除去するものであり、
前記第1のパターニング工程、第2のパターニング工程、第3のパターニング工程の順に順次パターニングを行うことにより、対象となる薄膜太陽電池の各構成薄膜層を機械的に除去して、溝又は間隙を形成して、薄膜太陽電池を短冊状の単位セルに分割し切り分け、前記分割された単位セルが所定数直列接続した構造の集積型の薄膜太陽電池を得る集積型薄膜太陽電池の製造方法である。
本発明の集積型薄膜太陽電池の製造方法は、図1に示すように、基板上に複数の薄膜太陽電池セルが所定数直列接続された積層構造の薄膜太陽電池を一連の薄膜太陽電池製造プロセスの中に、薄膜太陽電池セルの分割及びこれらの接続のための以下の3つのパターニング(パターン形成工程)P1、P2及びP3を組み込むことにより、より変換効率の高い太陽電池の製造方法を達成することができる。
2 基板
3 金属裏面電極
4 極薄膜層(固体潤滑剤層)
5 光吸収層(p形多元化合物半導体薄膜)
6 バッファ層(混晶化合物半導体薄膜)
7 窓層(n形透明導電膜)
Claims (4)
- 基板と、前記基板上の金属裏面電極層と、前記金属裏面電極層上のp形の導電形を有し且つ光吸収層として供される多元化合物半導体薄膜と、前記光吸収層上の光吸収層と反対の導電形を有し、禁制帯幅が広く且つ透明で導電性を有し窓層として供される金属酸化物半導体薄膜と、前記光吸収層と窓層との間の界面の混晶化合物半導体薄膜からなるバッファ層と、を構成薄膜とする集積型薄膜太陽電池の製造方法であって、
前記前記金属裏面電極層の一部を細線状に除去することによりパターニング(パターンを形成)する第1のパターニング工程と、
前記第1のパターニング工程で形成されるパターンを基準位置として一定間隔オフセットして前記光吸収層の一部又は前記光吸収層とバッファ層の一部を細線状に除去することによりパターニング(パターンを形成)する第2のパターニング工程と、
前記第1のパターニング工程又は第2のパターニング工程で形成されるパターンを基準位置として一定間隔オフセットして前記光吸収層とバッファ層と窓層の一部を細線状に除去することによりパターニング(パターンを形成)する第3のパターニング工程とからなり、
前記第2のパターニング工程及び第3のパターニング工程は、先端が尖った金属針により、対象とする積層薄膜層の一部を機械的に引っ掻くようにして除去するメカニカル・スクライビング法により実施し、前記光吸収層形成過程で、副次的に金属裏面電極層の表面に生成する極薄膜層を固体潤滑剤として用い、金属針の先端を滑らせて、前記光吸収層までの各層を機械的に引っ掻くようにして除去するものであり、
前記第1のパターニング工程、第2のパターニング工程、第3のパターニング工程の順に順次パターニングを行うことにより、対象となる薄膜太陽電池の各構成薄膜層を機械的に除去して、溝又は間隙を形成して、薄膜太陽電池を短冊状の単位セルに分割し切り分け、前記分割された単位セルが所定数直列接続した構造の集積型の薄膜太陽電池を得ることを特徴とする集積型薄膜太陽電池の製造方法。 - 前記第1のパターニング工程は、前記金属裏面電極層がMo等の金属の場合には、レーザ法により実施することを特徴とする請求項1に記載の集積型薄膜太陽電池の製造方法。
- 前記金属裏面電極層がモリブデンからなり、前記金属裏面電極層の表面に副次的に生成する極薄膜層が、セレン化モリブデン又は硫化モリブデンからなることを特徴とする請求項1に記載の集積型薄膜太陽電池の製造方法。
- 前記第2のパターニング工程及び第3のパターニング工程において形成する溝又は間隙が、30〜50μm幅で1m以上の長さで、直線性良く、近接した位置関係で複数本形成することを特徴とする請求項1に記載の薄膜太陽電池の製造方法。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003428811A JP4064340B2 (ja) | 2003-12-25 | 2003-12-25 | 集積型薄膜太陽電池の製造方法 |
| PCT/JP2004/019693 WO2005064693A1 (ja) | 2003-12-25 | 2004-12-22 | 集積型薄膜太陽電池及びその製造方法 |
| CNA2004800409342A CN1918711A (zh) | 2003-12-25 | 2004-12-22 | 集成薄膜太阳能电池及其制造方法 |
| KR1020067015030A KR20070004593A (ko) | 2003-12-25 | 2004-12-22 | 집적형 박막 태양 전지 및 이의 제조방법 |
| EP04808044.4A EP1710844A4 (en) | 2003-12-25 | 2004-12-22 | INTEGRATED THIN FILM SOLAR CELL AND MANUFACTURING METHOD THEREFOR |
| US10/584,286 US20070163646A1 (en) | 2003-12-25 | 2004-12-22 | Integrated thin-film solar cell and process for producing the same |
| US12/508,961 US20090283131A1 (en) | 2003-12-25 | 2009-07-24 | Integrated thin-film solar cell and process for producing the same |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2003428811A JP4064340B2 (ja) | 2003-12-25 | 2003-12-25 | 集積型薄膜太陽電池の製造方法 |
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| Publication Number | Publication Date |
|---|---|
| JP2005191167A JP2005191167A (ja) | 2005-07-14 |
| JP4064340B2 true JP4064340B2 (ja) | 2008-03-19 |
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|---|---|
| US (2) | US20070163646A1 (ja) |
| EP (1) | EP1710844A4 (ja) |
| JP (1) | JP4064340B2 (ja) |
| KR (1) | KR20070004593A (ja) |
| CN (1) | CN1918711A (ja) |
| WO (1) | WO2005064693A1 (ja) |
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| US4915745A (en) * | 1988-09-22 | 1990-04-10 | Atlantic Richfield Company | Thin film solar cell and method of making |
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| US5477088A (en) * | 1993-05-12 | 1995-12-19 | Rockett; Angus A. | Multi-phase back contacts for CIS solar cells |
| JPH10200142A (ja) * | 1997-01-10 | 1998-07-31 | Yazaki Corp | 太陽電池の製造方法 |
| JPH11345989A (ja) * | 1998-05-29 | 1999-12-14 | Matsushita Battery Industrial Co Ltd | 太陽電池の製造方法 |
| JP2001156026A (ja) * | 1999-11-29 | 2001-06-08 | Canon Inc | 半導体素子及びその製造方法 |
| JP2002319686A (ja) * | 2001-04-23 | 2002-10-31 | Matsushita Electric Ind Co Ltd | 集積型薄膜太陽電池の製造方法 |
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- 2004-12-22 WO PCT/JP2004/019693 patent/WO2005064693A1/ja not_active Ceased
- 2004-12-22 CN CNA2004800409342A patent/CN1918711A/zh active Pending
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| Publication number | Publication date |
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| CN1918711A (zh) | 2007-02-21 |
| JP2005191167A (ja) | 2005-07-14 |
| US20090283131A1 (en) | 2009-11-19 |
| KR20070004593A (ko) | 2007-01-09 |
| EP1710844A1 (en) | 2006-10-11 |
| US20070163646A1 (en) | 2007-07-19 |
| EP1710844A4 (en) | 2015-12-16 |
| WO2005064693A1 (ja) | 2005-07-14 |
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