Jean Claude Tedenac, presently Emeritus Professor at the University of Montpellier, was a full Professor at the former University Montpellier 2 until 2014. He was a Visiting Professor at the ITMO University in St. Petersburg, Russia in 2015-2016. His research focuses on the physical chemistry of semiconductors and problems of materials science. He has studied phase stabilities of bulk materials as well as thin films and nanomaterials. A major achievement has been connecting the thermodynamics of multicomponent systems, kinetics, and crystal growth for thermoelectric materials and titanium-based alloys. To date, he has published a total of 256 papers in ISI-indexed journals.