JP5259178B2 - 太陽電池製造のための半導体の薄層を堆積する方法および装置 - Google Patents
太陽電池製造のための半導体の薄層を堆積する方法および装置 Download PDFInfo
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- JP5259178B2 JP5259178B2 JP2007504040A JP2007504040A JP5259178B2 JP 5259178 B2 JP5259178 B2 JP 5259178B2 JP 2007504040 A JP2007504040 A JP 2007504040A JP 2007504040 A JP2007504040 A JP 2007504040A JP 5259178 B2 JP5259178 B2 JP 5259178B2
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- 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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F77/00—Constructional details of devices covered by this subclass
- H10F77/10—Semiconductor bodies
- H10F77/12—Active materials
- H10F77/126—Active materials comprising only Group I-III-VI chalcopyrite materials, e.g. CuInSe2, CuGaSe2 or CuInGaSe2 [CIGS]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F10/00—Individual photovoltaic cells, e.g. solar cells
- 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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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
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- H10P14/203—
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- H10P14/265—
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- H10P14/3436—
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Description
本出願は、参照により本明細書に組み込まれる、2004年3月15日に出願された先の米国仮出願第60/552,736号の利益を主張する。
本発明は電磁波検出器および光電変換用途のための半導体の薄膜を調製するための方法および装置に関する。
太陽電池は、日光を直接電力に変換する光電変換デバイスである。最も一般的な太陽電池材料は、単結晶または多結晶ウエハの形態にあるシリコンである。しかし、シリコン系太陽電池を用いて発生する電気のコストは、より伝統的な方法により発生する電気のコストより高い。したがって、1970年代初期以降、地上での使用のための太陽電池のコストを減少させるための努力がなされてきた。太陽電池のコストを下げる1つの方法は、大面積の基板上に太陽電池品質の吸収材料を堆積できる低コスト薄膜成長法を開発し、高い生産性で低コストの方法を用いてこれらのデバイスを製造することである。
本発明は、様々な実施形態において、巨視的ならびに微視的な組成均一性を有する高品質で、緻密で、良好に接着するIBIIIAVIA族化合物薄膜を作るための低コスト堆積技術を有利に提供する。
本発明は、重要な製造性および歩留りの問題、たとえば微視的組成の制御および基板への半導体吸収膜の接着に対処することにより、先行技術の欠点を克服する。また、本発明は薄膜太陽電池の低コスト製造も可能とする。
Claims (16)
- 基材上にIBIIIAVIA族半導体層を成長させる方法であって、
基材上にIB族材料の膜を堆積し、および少なくとも1つのIIIA族材料の層を堆積し、前記膜および少なくとも1つの層の両方ともその中に実質的な量のVIA族材料を含まない工程と、
炉を用いてIB族材料の膜および少なくとも1つのIIIA族材料の層を混合して、実質的な量のVIA族材料を含まない混合層を形成する工程と、
混合層上に、20〜250nmの範囲の膜厚を有するIIIA族材料の副層およびIB族材料の副層の少なくとも1つを含む薄い金属膜を形成する工程と、
混合層および金属膜をVIA族材料と反応させてIBIIIAVIA族半導体層を成長させる工程と
を含む方法。 - 混合層上に金属膜を形成する工程はIIIA族材料の副層として第1のIIIA族材料の層および別のIIIA族材料の層を形成する工程を含む請求項1記載の方法。
- 混合工程はIB族材料の膜および少なくとも1つのIIIA族材料の層を摂氏50〜350度の範囲の温度に加熱し、加熱工程を2〜600秒の時間実施し、混合層を全体にわたって実質的に合金化し、それにより実質的に均一な微視的組成を達成する請求項1記載の方法。
- 混合層におけるIB族材料対IIIA族材料のモル比が1.0より大きい請求項3記載の方法。
- さらに、形成工程の後に混合層および金属膜をアニーリングしてアニール層を作る工程を含み、アニーリング工程を摂氏50〜350度の温度で実施する請求項1記載の方法。
- さらに、堆積、混合、形成、およびアニーリングの工程を少なくとも1回繰り返して前駆体層を形成する請求項5記載の方法。
- 堆積および形成の工程をおのおの電着を用いて実施し、VIA族材料はセレンおよび硫黄の少なくとも1つを含む請求項1記載の方法。
- 基材上にCu(In,Ga)(Se,S)2半導体層を成長させる方法であって、
基材上に銅の膜を堆積し、ならびにインジウムの層およびガリウムの層の少なくとも1つを堆積し、前記膜および少なくとも1つの層の両方ともその中に実質的な量のVIA族材料を含まない工程と、
炉を用いて銅の膜ならびにインジウムの層およびガリウムの層の少なくとも1つを混合して、実質的な量のVIA族材料を含まない混合層を形成する工程と、
混合層上にインジウム副層、ガリウム副層および銅副層の少なくとも1つを含む薄い金属膜を形成し、前記金属膜は20〜250nmの範囲の膜厚を有する工程と
混合層および金属膜をVIA族材料と反応させてIBIIIAVIA族半導体層を成長させる工程と
を含む方法。 - 混合工程は銅の膜ならびにインジウムの層およびガリウムの層の少なくとも1つを摂氏50〜350度の範囲の温度に加熱する工程を含み、混合層におけるCu/(In+Ga)のモル比が1.0より大きい請求項8記載の方法。
- 堆積工程は基材上に銅の膜ならびにインジウムの層およびガリウムの層の両方を堆積し、混合工程は銅の膜、インジウムの層およびガリウムの層を混合して混合層を形成し、金属膜はインジウム副層およびガリウム副層および銅副層を含み、混合層および金属膜を反応させる工程は混合層および金属膜を硫黄およびセレンの少なくとも1つと反応させてCu(In,Ga)(Se,S)2半導体層を成長させる請求項8記載の方法。
- 混合層および金属膜を反応させる工程は混合層および金属膜を硫黄およびセレンの少なくとも1つと反応させてCu(In,Ga)(Se,S)2半導体層を成長させる請求項8記載の方法。
- 堆積工程は基材上に銅の膜およびインジウムの層を堆積し、混合層における銅対インジウムのモル比が1.22以上である請求項8記載の方法。
- 金属膜はガリウム副層を含み、混合層および金属膜を反応させる工程は混合層および金属膜を硫黄およびセレンの少なくとも1つと反応させてCu(In,Ga)(Se,S)2半導体層を成長させる請求項12記載の方法。
- 金属膜は銅副層およびガリウム副層を含み、混合層および金属膜を反応させる工程は混合層および金属膜を硫黄およびセレンの少なくとも1つと反応させてCu(In,Ga)(Se,S)2半導体層を成長させる請求項12記載の方法。
- 堆積工程は基材上銅の膜およびガリウムの層を堆積し、混合層におけるCu/Gaのモル比が1以上であり、金属膜がインジウム副層を含み、混合層および金属膜を反応させる工程は混合層および金属膜を硫黄およびセレンの少なくとも1つと反応させてCu(In,Ga)(Se,S)2半導体層を成長させる請求項8記載の方法。
- 堆積および形成の工程をおのおの電着を用いて実施する請求項8記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55273604P | 2004-03-15 | 2004-03-15 | |
| US60/552,736 | 2004-03-15 | ||
| PCT/US2005/008631 WO2005089330A2 (en) | 2004-03-15 | 2005-03-15 | Technique and apparatus for depositing thin layers of semiconductors for solar cell fabricaton |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007529907A JP2007529907A (ja) | 2007-10-25 |
| JP2007529907A5 JP2007529907A5 (ja) | 2008-04-24 |
| JP5259178B2 true JP5259178B2 (ja) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007504040A Expired - Fee Related JP5259178B2 (ja) | 2004-03-15 | 2005-03-15 | 太陽電池製造のための半導体の薄層を堆積する方法および装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US7374963B2 (ja) |
| EP (1) | EP1749309A2 (ja) |
| JP (1) | JP5259178B2 (ja) |
| KR (1) | KR101115484B1 (ja) |
| CN (2) | CN101894881A (ja) |
| WO (1) | WO2005089330A2 (ja) |
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| EP1749309A2 (en) | 2007-02-07 |
| WO2005089330A2 (en) | 2005-09-29 |
| JP2007529907A (ja) | 2007-10-25 |
| KR20070097297A (ko) | 2007-10-04 |
| CN100573812C (zh) | 2009-12-23 |
| KR101115484B1 (ko) | 2012-02-27 |
| US20050202589A1 (en) | 2005-09-15 |
| CN101894881A (zh) | 2010-11-24 |
| US20080190761A1 (en) | 2008-08-14 |
| CN101027749A (zh) | 2007-08-29 |
| US8192594B2 (en) | 2012-06-05 |
| WO2005089330A3 (en) | 2007-05-03 |
| US7374963B2 (en) | 2008-05-20 |
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