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:
Dec. 15, 1998
Filed:
Apr. 26, 1996
Applicant:
Inventors:
Toshimitsu Kariya, Nara, JP;
Keishi Saito, Nara, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
136265 ; 136256 ; 136258 ; 136261 ;
Abstract
A photovoltaic element has a substrate with a conductive surface, a zinc oxide layer containing fluorine and a non-single-crystal semiconductor layer, where the fluorine content of the zinc oxide layer (i) varies across the thickness of the layer, (ii) is at a minimum at the interface with the substrate and (iii) increases toward the semiconductor layer.