The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2002
Filed:
Feb. 25, 1999
Applicant:
Inventor:
Keishi Saito, Nara, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 3/100 ;
U.S. Cl.
CPC ...
H01L 3/100 ;
Abstract
The present invention provides a stacked photovoltaic element formed by stacking, on a substrate, at least a pin junction constituent element having a microcrystalline semiconductor in an i-type semiconductor layer and a pin junction constituent element having an amorphous semiconductor in an i-type semiconductor layer, wherein a current is controlled by the pin junction constituent element having the microcrystalline semiconductor in the i-type semiconductor layer, thereby obtaining a stacked photovoltaic element with a high photoelectric conversion efficiency and a reduced variation in the photoelectric conversion efficiency for a long light irradiation time.