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.

Date of Patent:
Mar. 01, 2016

Filed:

Aug. 19, 2014
Applicant:

The Boeing Company, Huntington Beach, CA (US);

Inventors:

Richard R. King, Thousand Oaks, CA (US);

Christopher M. Fetzer, Valencia, CA (US);

Peter C. Colter, Canyon Country, CA (US);

Assignee:

The Boeing Company, Chicago, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0687 (2012.01); H01L 31/18 (2006.01); H01L 31/0735 (2012.01);
U.S. Cl.
CPC ...
H01L 31/0687 (2013.01); H01L 31/0735 (2013.01); H01L 31/1852 (2013.01); Y02E 10/544 (2013.01); Y02P 70/521 (2015.11);
Abstract

A solar cell includes a first layer having a first-layer lattice parameter, a second layer having a second-layer lattice parameter different from the first-layer lattice parameter, wherein the second layer includes a photoactive second-layer material; and a third layer having a third-layer lattice parameter different from the second-layer lattice parameter, wherein the third layer includes a photoactive third-layer material. A transparent buffer layer extends between and contacts the second layer and the third layer and has a buffer-layer lattice parameter that varies with increasing distance from the second layer toward the third layer, so as to lattice match to the second layer and to the third layer. There may be additional subcell layers and buffer layers in the solar cell.


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