ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,817, issued on April 7, was assigned to Azur Space Solar Power GmbH (Heilbronn, Germany).
"Stacked iii-v multi-junction solar cell" was invented by Wolfgang Koestler (Heilbronn, Germany) and Benjamin Hagedorn (Ilsfeld, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stacked III-V multi-junction solar cell with a top and a bottom. A metallic top contact area is formed at the top and has a first layer of metal, a flat metallic bottom contact area formed on the bottom. An opening extends continuously from the top to the bottom and has an upper edge area formed at the top and a lower edge area formed at the bottom. The upper edge area is adjace...