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:
Aug. 27, 2019
Filed:
May. 09, 2011
Joel P. DE Souza, Putnam Valley, NY (US);
Harold J. Hovel, Katonah, NY (US);
Daniel A. Inns, Sunnyvale, CA (US);
Jeehwan Kim, Los Angeles, CA (US);
Christian Lavoie, Pleasentville, NY (US);
Devendra K. Sadana, Pleasentville, NY (US);
Katherine L. Saenger, Ossining, NY (US);
Davood Shahrjerdi, Ossining, NY (US);
Zhen Zhang, New York, NY (US);
Joel P. De Souza, Putnam Valley, NY (US);
Harold J. Hovel, Katonah, NY (US);
Daniel A. Inns, Sunnyvale, CA (US);
Jeehwan Kim, Los Angeles, CA (US);
Christian Lavoie, Pleasentville, NY (US);
Devendra K. Sadana, Pleasentville, NY (US);
Katherine L. Saenger, Ossining, NY (US);
Davood Shahrjerdi, Ossining, NY (US);
Zhen Zhang, New York, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A solar cell having n-type and p-type interdigitated back contacts (IBCs), which cover the entire back surface of the absorber layer. The spatial separation of the IBCs is in a direction perpendicular to the back surface, thus providing borderless contacts having a zero-footprint separation. As the contacts are on the back, photons incident on the cell's front surface can be absorbed without any shadowing.