ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,701,819, issued on Aug. 4, was assigned to Silfab Solar Cells SC Inc. (Fort Mill, S.C.).
"Back-side contact solar cell" was invented by Erik Hoffmann (Stuttgart, Germany) and Jurgen Werner (Stuttgart, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a back-side contact solar cell including a semiconductor substrate, in particular a silicon wafer, including a front side and a back side, the solar cell having electrodes of a first polarity and electrodes of a second polarity on the back side, wherein a tunnel layer and a highly doped silicon layer are positioned under the electrodes of a first polarity, and the electrodes of ...