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:
Sep. 19, 1989
Filed:
Jun. 07, 1988
Applicant:
Inventor:
Billy J Stanbery, Seattle, WA (US);
Assignee:
The Boeing Company, Seattle, WA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
136249 ; 357 30 ; 437-2 ; 437-5 ;
Abstract
An ultra-high-efficiency, monolithic, heteroepitaxial solar cell having a high specific power is disclosed. The solar cell includes three photoactive regions connected in series by their structure as a substantially single crystal multilayer film. The three photoactive junctions are in tandem optically. The upper cell, having the highest bandgap, is exposed to the entire solar spectrum, wherein those wavelengths whose energy is less than the upper cell's bandgap are transmitted to the two underlying cells. The intermediate cell similarly filters the solar spectrum transmitted to the lower cell which has the lowest bandgap.