SOLAR CELL ELEMENT

To improve characteristics, reliability, and the like of a solar cell element, the solar cell element includes: a semiconductor substrate which includes a first main surface and a second main surface that is positioned opposite to the first main surface, and in which a p-type semiconductor region an...

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Bibliographische Detailangaben
Hauptverfasser:	HONJO TOMOFUMI, MIYAZAKI SHIRO, AONO SHIGEO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SEMICONDUCTOR DEVICES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	To improve characteristics, reliability, and the like of a solar cell element, the solar cell element includes: a semiconductor substrate which includes a first main surface and a second main surface that is positioned opposite to the first main surface, and in which a p-type semiconductor region and an n-type semiconductor region are stacked in such a manner that the p-type semiconductor region is positioned closest to the first main surface and the n-type semiconductor region is positioned closest to the second main surface; a first passivation layer which is disposed on the p-type semiconductor region that is positioned closest to the first main surface, and which includes aluminum oxide; and a first protective layer that is disposed on the first passivation layer. The first protective layer includes an oxide that contains at least one kind of zirconium and hafnium.