ALEXANDRIA, Va., May 12 -- United States Patent no. 12,628,492, issued on May 12, was assigned to Alliance for Energy Innovation LLC (Golden, Colo.) and The Regents of the University of Colorado (Denver).

"Methods for improving perovskite solar cells" was invented by Axel Finn Palmstrom (Golden, Colo.), Joseph Jonathan Berry (Boulder, Colo.) and Samuel Aaron Johnson (Boulder, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a device that includes a first metal oxide layer having a first thickness, a second metal oxide layer having a second thickness, and a base layer having a third thickness, where the first metal oxide layer is positioned between the base layer and the ...