The patents, US 9,978,532 “Maximizing the Power Conversion Efficiency of a Tin Perovskite/Silicon Thin-Film Tandem Solar Cell” and US ser. 15/157,539 “Methods of Growing Heteroepitaxial Single Crystal or Large Grained Semiconductor Films and Devices Thereon” are part of a “Tandem Series” of high efficiency and cost effective solar cell technologies by Solar-Tectic LLC with the […]