ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,122, issued on July 15, was assigned to CubicPV Inc. (Bedford, Mass.).
"Ionic liquid perovskite devices" was invented by Michael D. Irwin (Heath, Texas), Xiao-Xin Gao (Sion, Switzerland), Zhaofu Fei (Kaiseraugst, Switzerland), Paul J. Dyson (Lausanne, Switzerland) and Mohammad Khaja Nazeeruddin (Ecublens, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method including forming a lead halide precursor ink comprising a group 1 metal halide, a lead halide, an ionic liquid, and a solvent; depositing the lead halide precursor ink onto a substrate; drying the lead halide precursor ink to form a lead halide film; and annealing the lead halide ...