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:
Sep. 20, 2016
Filed:
Jun. 21, 2011
James Neil Johnson, Scotia, NY (US);
Bastiaan Arie Korevaar, Schenectady, NY (US);
Yu Zhao, Niskayuna, NY (US);
James Neil Johnson, Scotia, NY (US);
Bastiaan Arie Korevaar, Schenectady, NY (US);
Yu Zhao, Niskayuna, NY (US);
First Solar, Inc., Tempe, AZ (US);
Abstract
One aspect of the present invention includes method of making a photovoltaic device. The method includes disposing an absorber layer on a window layer, wherein the absorber layer includes a first region and a second region. The method includes disposing the first region adjacent to the window layer in a first environment including oxygen at a first partial pressure; and disposing the second region on the first region in a second environment including oxygen at a second partial pressure, wherein the first partial pressure is greater than the second partial pressure. One aspect of the present invention includes a photovoltaic device.