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:
Nov. 07, 2017
Filed:
Mar. 17, 2014
Applicant:
Anthony Lochtefeld, Ipswich, MA (US);
Inventor:
Anthony Lochtefeld, Ipswich, MA (US);
Assignee:
Amberwave Inc., Salem, NH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 31/0687 (2012.01); H01L 31/18 (2006.01);
U.S. Cl.
CPC ...
H01L 31/0687 (2013.01); H01L 31/1852 (2013.01); Y02E 10/544 (2013.01); Y02P 70/521 (2015.11);
Abstract
A device, system, and method for a multi junction solar cell are described herein. An exemplary multi-solar cell structure can have a substrate having a first surface having a (111) crystalline etched surface. A dielectric layer can be deposited on the first surface of the substrate. A graded buffer layer can be grown on a second surface of the substrate with the second surface having a (100) crystalline surface. A first solar subcell within or on top of the graded buffer layer and a second solar subcell grown on top of the first solar subcell.