Dr. Vasilis Gregoriou is the Director and Chairman of the Board at the National Hellenic Research Foundation (NHRF) one of the largest Research Centers in Greece.  He is an internationally known scientist with research and managerial positions in both Greece (NHRF, FORTH) and the USA (Duke University, Princeton University, Polaroid Corporation, MIT, Northeastern University, Advent Technologies Inc.) over a 30 year career so far.  His research activity extends over a wide area of subjects in materials science for renewable energy technologies and sensors.  He is the coauthor of 3 books, 6 chapters in books, 84 refereed research papers, 143 research presentations and the co-inventor of 12 patents.  As a technology entrepreneur, he has cofounded Advent Technologies (www.advent-energy.com).  He holds a Ph.D. in Physical Chemistry from Duke University (1993), was an NIH Research Fellow at Princeton University (1994) and has attended the MBA program at Northeastern University.