WO2009092426A3 - Solar cell and method for the production of a solar cell - Google Patents

Solar cell and method for the production of a solar cell Download PDF

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Publication number
WO2009092426A3
WO2009092426A3 PCT/EP2008/010713 EP2008010713W WO2009092426A3 WO 2009092426 A3 WO2009092426 A3 WO 2009092426A3 EP 2008010713 W EP2008010713 W EP 2008010713W WO 2009092426 A3 WO2009092426 A3 WO 2009092426A3
Authority
WO
WIPO (PCT)
Prior art keywords
metallization
solar cell
base
emitter
region
Prior art date
Application number
PCT/EP2008/010713
Other languages
German (de)
French (fr)
Other versions
WO2009092426A2 (en
Inventor
Oliver Schultz-Wittmann
Filip Granek
Martin Hermle
Jan Benick
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Albert-Ludwigs-Universität Freiburg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Albert-Ludwigs-Universität Freiburg filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority to EP08871544A priority Critical patent/EP2232573A2/en
Publication of WO2009092426A2 publication Critical patent/WO2009092426A2/en
Publication of WO2009092426A3 publication Critical patent/WO2009092426A3/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—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
    • 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
    • H01L31/06—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 characterised by potential barriers
    • H01L31/068—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 characterised by potential barriers the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
    • H01L31/0682—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 characterised by potential barriers the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells back-junction, i.e. rearside emitter, solar cells, e.g. interdigitated base-emitter regions back-junction cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—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
    • H01L31/02—Details
    • H01L31/0224—Electrodes
    • H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—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
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • H01L31/1804—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof comprising only elements of Group IV of the Periodic Table
    • 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
    • Y02E10/547—Monocrystalline silicon PV cells
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention relates to a solar cell having a front side for coupling electromagnetic radiation, and a rear side, comprising at least one base metallization (3) and at least one emitter metallization (6), and a semi-conductor structure, which has at least one base region (1) of a first doping type, and at least one emitter region (2) of a second doping type opposite the first doping type, for forming a p-n junction between the base and the emitter, wherein the base metallization (3) is connected to the base region (1) and the emitter metallization (6) is connected to the emitter region (2) in an electrically conductive manner. The base metallization (3) and the emitter metallization (6) are both disposed on a metallization side of the solar cell, which is either the front side or the rear side of the solar cell, and the emitter region (2) extends at least partially along the metallization side of the solar cell. It is essential to the invention that the emitter region (2) extends at least partially into the region of the metallization side covered by the base metallization (3), and that the semi-conductor structure further has an insulating region (4) of the first doping type, which extends along the metallization side of the solar cell at least partially between the base metallization (3) and the emitter region (2). The invention further relates to a method for the production of a solar cell.
PCT/EP2008/010713 2008-01-21 2008-12-16 Solar cell and method for the production of a solar cell WO2009092426A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08871544A EP2232573A2 (en) 2008-01-21 2008-12-16 Solar cell and method for the production of a solar cell

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008005396.1 2008-01-21
DE102008005396A DE102008005396A1 (en) 2008-01-21 2008-01-21 Solar cell and process for producing a solar cell

Publications (2)

Publication Number Publication Date
WO2009092426A2 WO2009092426A2 (en) 2009-07-30
WO2009092426A3 true WO2009092426A3 (en) 2009-09-24

Family

ID=40794259

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/010713 WO2009092426A2 (en) 2008-01-21 2008-12-16 Solar cell and method for the production of a solar cell

Country Status (3)

Country Link
EP (1) EP2232573A2 (en)
DE (1) DE102008005396A1 (en)
WO (1) WO2009092426A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2006966C2 (en) 2011-06-17 2012-12-18 Stichting Energie Photovoltaic system and connector for a photovoltaic cell with interdigitated contacts.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060060238A1 (en) * 2004-02-05 2006-03-23 Advent Solar, Inc. Process and fabrication methods for emitter wrap through back contact solar cells
DE102005025125A1 (en) * 2005-05-29 2006-12-14 Hahn-Meitner-Institut Berlin Gmbh Process for producing a solar cell contacted on one side and solar cell contacted on one side
US20070256728A1 (en) * 2006-05-04 2007-11-08 Sunpower Corporation Solar cell having doped semiconductor heterojunction contacts

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5053083A (en) * 1989-05-08 1991-10-01 The Board Of Trustees Of The Leland Stanford Junior University Bilevel contact solar cells
DE102004050269A1 (en) * 2004-10-14 2006-04-20 Institut Für Solarenergieforschung Gmbh Process for the contact separation of electrically conductive layers on back-contacted solar cells and solar cell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060060238A1 (en) * 2004-02-05 2006-03-23 Advent Solar, Inc. Process and fabrication methods for emitter wrap through back contact solar cells
DE102005025125A1 (en) * 2005-05-29 2006-12-14 Hahn-Meitner-Institut Berlin Gmbh Process for producing a solar cell contacted on one side and solar cell contacted on one side
US20070256728A1 (en) * 2006-05-04 2007-11-08 Sunpower Corporation Solar cell having doped semiconductor heterojunction contacts

Also Published As

Publication number Publication date
EP2232573A2 (en) 2010-09-29
DE102008005396A1 (en) 2009-07-30
WO2009092426A2 (en) 2009-07-30

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