Olena Okhay graduated in Microelectronics and Semiconductor Devices from the National Technical University of Ukraine “Kyiv Polytechnic Institute” in 1999. She received her Ph.D. in Materials Science and Engineering in 2009 in University of Aveiro, Portugal. Since January 2019 she has been a Researcher in TEMA, the Centre for Mechanical Technology and Automation, University of Aveiro, Portugal. Her research involves materials for energy harvesting and storage such as thermoelectrics, piezoelectrics, as well as composite electrodes for solar cells and electrochemical capacitors, and concentrates on composites based on 1D–2D carbon-family materials, metal oxides/hydroxides and polymers.