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. 09, 2003
Filed:
Aug. 01, 2002
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 3/10224 ; H01L 3/118 ; H01L 3/104 ; C23C 1/640 ;
U.S. Cl.
CPC ...
H01L 3/10224 ; H01L 3/118 ; H01L 3/104 ; C23C 1/640 ;
Abstract
A substrate for a solar cell is provided which comprises a support having a metal surface and a zinc oxide film formed on the metal surface and having a water content of 7.5×10 mol/cm or less, preferably 4.0×10 mol/cm or more. Thereby, the increase of series resistance and the generation of shunt are prevented and the efficiency such as Jsc and the chemical stability are improved, thus obtaining a solar cell with a zinc oxide film having optimal overall characteristics.