SILICON SHEET AND SOLAR CELL

SILICON SHEET AND SOLAR CELL

PROBLEM TO BE SOLVED: To impart satisfactory semiconductor properties to a silicon sheet used for a solar cell or the like, and to achieve the further increase in the efficiency of a solar cell using the silicon sheet. SOLUTION: In the polycrystalline silicon sheet formed by bringing a silicon melt...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KOMA SHUJI, YAMATSUGU HOKUTO, MITSUYASU HIDEMI, YOSHIDA KOJI, SUZUKI TAKASHI, YAMAZAKI YUJI
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To impart satisfactory semiconductor properties to a silicon sheet used for a solar cell or the like, and to achieve the further increase in the efficiency of a solar cell using the silicon sheet. SOLUTION: In the polycrystalline silicon sheet formed by bringing a silicon melt into contact with the body to be contacted, boron of 0.04 to 0.2 ppmw is comprised. It is preferable that the main face of both sides or either side is provided with ruggedness. Further, it is preferable that the period of the ruggedness of the main faces in both the sides is the same. COPYRIGHT: (C)2011,JPO&INPIT