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:
Apr. 15, 2014
Filed:
Apr. 08, 2011
William J. Borland, Chapel Hill, NC (US);
Alan Frederick Carroll, Raleigh, NC (US);
Barry Edward Taylor, Wake Forest, NC (US);
William J. Borland, Chapel Hill, NC (US);
Alan Frederick Carroll, Raleigh, NC (US);
Barry Edward Taylor, Wake Forest, NC (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A photovoltaic cell such as a solar cell is disclosed. The cell comprises (a) a semiconductor substrate having a front surface, (b) one or more anti-reflection coating layers on the front surface of the semiconductor substrate, (c) a plurality of silver-containing fingers in contact with the one or more anti-reflection coating layers and in electrical contact with the semiconductor substrate; and (d) one or more base metal containing buss bars each in contact with the one or more anti-reflection coating layers and the silver-containing fingers. The base metal may be selected from one or more of copper, nickel, lead, tin, iron, indium, zinc, bismuth and cobalt. Methods for making protovoltaic cells with base metal containing buss bars are also disclosed.