US Patent Issued to Northwestern University on July 8 for "Two-dimensional perovskites for stable and efficient photovoltaic cells" (Illinois Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,944, issued on July 8, was assigned to Northwestern University (Evanston, Ill.).

"Two-dimensional perovskites for stable and efficient photovoltaic cells" was invented by Lingling Mao (Evanston, Ill.), Weijun Ke (Evanston, Ill.), Konstantinos Stoumpos (Chicago) and Mercouri G. Kanatzidis (Wilmette, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Two-dimensional halide perovskites are provided. The perovskites have two-dimensional Dion-Jacobson phases and are composed of a plurality of inorganic perovskite layers separated by 3-(aminomethyl)piperidinium (3AMP) and/or 4-(aminomethyl)piperidinium (4AMP) spacer cations. The halide perovskites may hav...