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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.:

US 11222993 B1

PDFFull Text
Date of Patent:
Jan. 11, 2022

Filed:

Feb. 28, 2018

Cascaded broadband emission

Applicant:

University of Iowa Research Foundation, Iowa City, IA (US);

Inventors:

John P. Prineas, Iowa City, IA (US);

Dennis Norton, Iowa City, IA (US);

Thomas F. Boggess, Iowa City, IA (US);

Russell J. Ricker, Coralville, IA (US);

Assignee:

UNIVERSITY OF IOWA RESEARCH FOUNDATION, Iowa City, IA (US);

Attorneys:

Miles & Stockbridge P.C.

Ajay A. Jagtiani

Primary Examiner:

Dung A Le

Int. Cl.
CPC ...
H01L 33/06 (2010.01); H01L 33/00 (2010.01); H01L 33/08 (2010.01); H01L 33/14 (2010.01); H01L 33/30 (2010.01); H01L 33/36 (2010.01);
U.S. Cl.
CPC ...
H01L 33/06 (2013.01); H01L 33/0062 (2013.01); H01L 33/08 (2013.01); H01L 33/14 (2013.01); H01L 33/30 (2013.01); H01L 33/36 (2013.01); H01L 2933/0016 (2013.01);
Abstract

Methods and a device for cascading broadband emission are described. An example device can comprise a substrate, a bottom contact layer above at least a portion of the substrate, and a plurality of emission regions above the bottom contact layer. The plurality of emission regions can be disposed one above another. Each of the plurality of emission regions can be configured with different respective band gaps to emit radiation of different wavelengths. The device can comprise a plurality of tunnel junctions. Each of the tunnel junctions can be disposed between at least two corresponding emission regions of the plurality of emission regions. The device can comprise a top contact layer above the plurality of emission regions.

Find Patent Forward Citations

Prineas, John. (2022). Cascaded broadband emission (U.S. Patent No. 11222993). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11222993

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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