He received his PhD from the University of Namur, Belgium, in 1979. In 1988, he was appointed Professor at the University of Mons, Belgium, where he established the Laboratory for Chemistry of Novel Materials. While keeping an Extraordinary Professorship" appointment in Mons, he moved to the US in 1999 and became Full Professor of Chemistry at the University of Arizona. In 2003, he moved to the Georgia Institute of Technology as Full Professor of Chemistry and Biochemistry. In July 2014, he took a 2-½-year leave of absence to King Abdullah University of Science and Technology KAUST) where he served as Distinguished Professor of Materials Science and Engineering and Director of the KAUST Solar and Photovoltaics Research and Engineering Center. At Georgia Tech, where he resumed his activities in January 2017, he is Regents' Professor of Chemistry and Biochemistry and holds the Vasser-Woolley and Georgia Research Alliance Chair in Molecular Design. He is a Georgia Research Alliance Eminent Scholar since 2005.