Prof. Spiros Gardelis is an Associate Professor at the Department of Physics, Section of Condensed Matter Physics, at the National and Kapodistrian University of Athens, Greece. He received his B.Sc. degree in Physics from the University of Athens in 1988 and his M.Sc. and the PhD from the University of Manchester, England, in 1989 and 1993, respectively. From 1993 to 2000, he worked as a Research Associate at the University of Manchester, the University of Warwick, and at the Cavendish Laboratory (Physics Department) at the University of Cambridge in England. In the years 2000–2004, he worked as a researcher at the Institute of Electronic Structure and Laser (IESL) of the Foundation for Research and Technology-Hellas (FORTH) in Heraklion, Crete, and concurrently taught as a Visiting Associate Professor at the Materials Science Department of the University of Crete. From 2005 until 2015, he was Senior Researcher at the Institute of Nanoscience and Nanotechnology of the National Center for Scientific Research "DEMOKRITOS" in Athens, Greece. Since May 2015, he has held the post of Associate Professor at the Physics Department at the National and Kapodistrian University of Athens. His current research interests are in the field of semiconductor physics, semiconductor nanostructures for nanoelectronics, spintronics, photonics, solar cells, and MEMS.