ALEXANDRIA, Va., June 25 -- United States Patent no. 12,342,710, issued on June 24, was assigned to COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION (Australian Capital Territory, Australia).

"Method of forming a perovskite film for an optoelectronic device" was invented by Mei Gao (Glen Waverley, Australia), Chuantian Zuo (Beijing) and Doojin Vak (Noble Park North, Australia).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a method of forming a perovskite film for an optoelectronic device, the method comprising: applying a perovskite precursor solution to at least one part of a hydrophilic region of a substrate, wherein the hydrophilic region is bounded by a hydrophobic boun...