ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,024, issued on June 16, was assigned to Northeastern University (Boston).

"Method for producing plasmonic-nanostructure spectrally selective solar absorber having high solar absorptance, low thermal emittance, and high thermal stability" was invented by Yanpei Tian (Boston) and Yi Zheng (Canton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method is disclosed for producing a plasmonic-nanostructure spectrally selective solar absorber having high solar absorptance, low thermal emittance, and superior thermal stability. The method includes the steps of providing an alloy structure containing a base metal and a copper alloying impurity, where...