Dr. D.A. Chalkias is a Research Associate at the Nanotechnology and Advanced Materials Laboratory (N&AML) in the Dept. of Electrical & Computer Engineering at the University of the Peloponnese and a Process Engineer at Brite Solar Technologies Company, in Greece. He completed his undergraduate studies and postgraduate research at the University of Patras in the Dept. of Mechanical Engineering & Aeronautics, where he was awarded a Ph.D. in 2019.Today, his interests are mainly focused on emerging photovoltaics (PVs) and their upscaling, as well as on novel agrivoltaic technologies. He is well-experienced in the fabrication of mesoscopic and highly ordered nanomaterials, thin films, nanostructured electrodes and advanced polymer electrolytes. On the other hand, he is well-familiar with a large number of materials and solar cells characterization techniques. He has participated as a Research Associate in research projects and in writing scientific projects on the topicof PVs. He has worked as a mechanical and civil engineer assistant, where for a period, he was experienced in planning, design, analysis and installation of PVs. He serves as a Topical Advisory Panel Member, Guest Editor and Reviewer in International Scientific Journals (Referee in over 50 indexed Journals).Professor E. Stathatos is currently a staff member in the Department of Electrical and Computer Engineering at the University of Peloponnese, Greece, and the head of the N&AML.He is also an advisory board member of Brite Solar Technologies Company for agrivoltaic and transparent PV systems and coatings. He holds several patents in the field of solar energy - PVs and electrochromic systems and published numerous articles/chapters in books while he serves as sectional Chief Editor and associate editor in several journals.His fields of expertise are third-generation PVs and emerging technologies. In particular, he is interested in the conversion of solar energy to electricity using dye-sensitized, quantum dot and perovskite solar cells. Currently, he is working on transparent PV technologies for agricultural applications, using novel nanocomposite materials and luminescent solar concentrators. Employing these new materials and designs, enhanced PV performance combined with high transparency in the photosynthetically active radiation region can be achieved. Finally, he is also interested in electrochromic nanocomposite materials for smart windows and artificial shading.