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:
Feb. 26, 2019
Filed:
Apr. 29, 2016
Applicant:
California Institute of Technology, Pasadena, CA (US);
Inventors:
Nathan H. Thomas, Pasadena, CA (US);
Austin Minnich, San Marino, CA (US);
Assignee:
CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/34 (2006.01); F24J 2/48 (2006.01); F24J 2/46 (2006.01); C23C 14/06 (2006.01);
U.S. Cl.
CPC ...
F24J 2/4652 (2013.01); C23C 14/0694 (2013.01); F24J 2/485 (2013.01); C23C 14/34 (2013.01);
Abstract
A solar thermal absorber including a spectrally selective filter comprising a stack of dielectric layers and one or more semiconductor absorber layers. The dielectric layers are transparent to infrared radiation and have a refractive index contrast, and the semiconductor absorber layers have a band gap, such that the semiconductor absorber layers absorb at least a portion of the solar spectrum and the stack reflects infrared radiation.