JPS5460584A - Solar battery using silicon ribbon crystal - Google Patents

Solar battery using silicon ribbon crystal

Info

Publication number
JPS5460584A
JPS5460584A JP12677477A JP12677477A JPS5460584A JP S5460584 A JPS5460584 A JP S5460584A JP 12677477 A JP12677477 A JP 12677477A JP 12677477 A JP12677477 A JP 12677477A JP S5460584 A JPS5460584 A JP S5460584A
Authority
JP
Japan
Prior art keywords
density
diffusion length
solar battery
perferable
impurity
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP12677477A
Other languages
Japanese (ja)
Inventor
Yasuo Igawa
Masao Mochizuki
Akimichi Hojo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP12677477A priority Critical patent/JPS5460584A/en
Publication of JPS5460584A publication Critical patent/JPS5460584A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02E10/546—Polycrystalline silicon PV cells

Abstract

PURPOSE: To obtain a high-efficiency solar battery by setting the impurity (majority carrier) density to 1 x 1017∼1 x 1018 cm-3 and growing the Si crystal form the Si fused solution directly into a ribbon shape.
CONSTITUTION: The open voltage is one of the factors to decide the efficiency for the solar battery of pn-junction type, and a high diffusion potential is required for the pn-junction to increase the open voltage. In this respect, a higher impurity (majority carrier) density is perferable to the side of the substrate. The short-circuit current is another factor and is larger the more perferable. In this connection, the larger the minor carrier diffusion length the more perferable. And the higher the impurity density, the smaller the majority carrier diffusion length becmoes. For the Si ribbon crystal and owing to its peculiar property of the crystalline performance, the minor carrier diffusion length is never reduced even though the majority carrier density may become over 1×1017 cm-3, differing from the substrate obtained through the Chokralsky method. And the minor carrier diffusion length becomces maximum at about 1×1017∼1×1018 cm-3
COPYRIGHT: (C)1979,JPO&Japio
JP12677477A 1977-10-24 1977-10-24 Solar battery using silicon ribbon crystal Pending JPS5460584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12677477A JPS5460584A (en) 1977-10-24 1977-10-24 Solar battery using silicon ribbon crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12677477A JPS5460584A (en) 1977-10-24 1977-10-24 Solar battery using silicon ribbon crystal

Publications (1)

Publication Number Publication Date
JPS5460584A true JPS5460584A (en) 1979-05-16

Family

ID=14943591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12677477A Pending JPS5460584A (en) 1977-10-24 1977-10-24 Solar battery using silicon ribbon crystal

Country Status (1)

Country Link
JP (1) JPS5460584A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51101466A (en) * 1975-02-28 1976-09-07 Wacker Chemitronic
JPS5271170A (en) * 1975-12-05 1977-06-14 Mobil Tyco Solar Energy Corp Method of making mostly single crystal ribon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51101466A (en) * 1975-02-28 1976-09-07 Wacker Chemitronic
JPS5271170A (en) * 1975-12-05 1977-06-14 Mobil Tyco Solar Energy Corp Method of making mostly single crystal ribon

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