Alexei Simaşchevici, a distinguished academic and consultant in the field of physics, was born in 1929. He has made significant contributions to the study of semiconductor physics and photovoltaic materials. Simaşchevici obtained his initial degree in Physics from the University of Moldova in 1952, followed by a doctoral degree in physical and mathematical sciences from the University of Vilnius, Lithuania, in 1964. Later, he earned his habilitation degree in the same field from the Leningrad Polytechnic Institute, USSR, in 1979, specializing in semiconductor physics.Throughout his career, Simaşchevici has held various academic and administrative positions. He served as an assistant, senior lecturer, and associate professor at the University of Moldova from 1955 to 1967 before becoming the head of the Semiconductor Physics Department until 1995. Afterward, he transitioned to the Academy of Sciences of Moldova (IFA AŞM), where he held roles such as academic coordinator, laboratory chief, deputy director, and interim director.Simaşchevici's research focuses on solar cell technologies, particularly semiconductor-insulator-semiconductor structures. His work has been published in reputable journals and conference proceedings, highlighting advancements in bifacial solar cells and the use of nanolayers in solar cell construction.In summary, Alexei Simaşchevici's extensive expertise and contributions to the field of semiconductor physics and photovoltaic materials have significantly impacted research and development in renewable energy technologies.