Doctor Hubilitat Ghenadii Korotcenkov is Chief Scientific Researcher, Moldova State University, Chisinau, Moldova. He has more than 50 years of research experience in the field of materials science and the development and research of various devices based on semiconductor materials. Until 1995 he studied Schottky barriers, MOS structures, native oxides, and various photoreceivers based on III–Vs compounds such as InP, GaP, AlGaAs, and InGaAs. His current research interests since 1995 include material sciences, focusing on metal oxide film deposition and characterization (In2O3, SnO2, ZnO, TiO2), surface science, thermoelectric conversion, and design of physical and chemical sensors, including thin film gas sensors. G. Korotcenkov is the author or editor of 45 books and special issues published by Momentum Press, CRC Press, Springer (USA), Harbin Institute of Technology Press (China), Trans Tech Publication (Switzerland) and EDP Sciences (France). Currently he is a series editor of “Metal Oxides” book series published by Elsevier. Since 2017, more than 40 volumes have been published within this series. G. Korotcenkov is the author and coauthor of more than 675 scientific publications, including 35 review papers, 70 book chapters, more than 250 peer-reviewed articles published in scientific journals (h-factor=45 (Web of Science), h=47 (Scopus) and h=72 (Google scholar citation), 2024).