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:
Mar. 31, 2015
Filed:
Sep. 29, 2011
Domenico DE Ceglia, Huntsville, AL (US);
Maria Antonietta Vincenti, Huntsville, AL (US);
Michael Scalora, Huntsville, AL (US);
Mirko Giuseppe Cappeddu, Catania, IT;
Domenico de Ceglia, Huntsville, AL (US);
Maria Antonietta Vincenti, Huntsville, AL (US);
Michael Scalora, Huntsville, AL (US);
Mirko Giuseppe Cappeddu, Catania, IT;
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A photovoltaic cell having multiple stacked layers has a thickness from the top of its top layer to the bottom of its bottom layer of less than one micron. Metal conducting layers are positioned between semiconductor layers with semiconductor layers having higher bandgaps being located above semiconductor layers having lower band gaps. The layers of the photovoltaic cell are arranged and stacked, and the thicknesses and materials for the semiconductor layers and conductive layers are selected to realize desired absorption, transmission, and reflection characteristics. The geometry and thicknesses of the respective layers of the cell allows incident light of various angles to be absorbed by all of the semiconductor layers of the cell.