Christophe BallifChristophe Ballif is director of the Phototovoltaics and Thin Film Electronics Laboratoryb) (PV-Lab at the institute of microengineering (IMT) in Neuchâtel (part of the EPFL since 2009). The lab focus is on the science and technology of high efficiency heterojunction crystalline cells,so-called passivating contacts for solar cells, multi-junction solar cells include novel generation Perovskite on innovative optical high speed detector and on various macroelectronics application. It also deals with energy management with a focus on integration of solar electricity into the energy system. The PV-Lab has strongly contributed to technology transfer and industrialization of novel devices and full technology with numerous companies. Christophe Ballif graduated as a physicist from the EPFL in 1994, where he also obtained in 1998 his Phd degree working on novel PV materials. He accomplished his postdoctoral research at NREL (Golden, US) on compound semiconductor solar cells (CIGS and CdTe). He worked then at the Fraunhofer ISE (Ge) on crystalline silicon photovoltaics (monocrystalline and multi-crystalline) until 2003 and then at the EMPA in Thun (CH) before becoming full professor at the University of Neuchâtel IMT in 2004, taking over the chair of Prof. A. Shah. Since 2013, C.Ballif is also the director of the new CSEM PV-Center, also located in Neuchâtel. The CSEM PV-Center is focussing more on industrialisation and technology transfer in the field of solar energy, including solar electricity management and storage. At the core of the CSEM PV-center activities lies several "pilot lines" for various kinds of solar cells manufacturing, with a focus coating technologies, wet chemistry processes for crystalline silicon, metalisation techniques for solar cells, and a platform for developing "ideal packaging solutions and polymers" for PV modules. In addition, joined facitilites between CSEM and EPFL of over 800 m2 are available for modules manufacturing, measuring and accelerated aging. CSEM PV-center has also full team dedicated to storage and energy systems and operates a joined center with BFH in Biel for research on electrochemical storage. He (co-) authored over 500 journal and technical papers, as well as several patents. He is an elected member of the SATW, member of the scientific council of the Swiss AEE, and member of the board of the EPFL Energy center. In 2016, he recieved the Becquerel prize for his contributions to the field of high efficiency photovoltaics.
Nicolas GrandjeanNicolas Grandjean received a PhD degree in physics from the University ofNice Sophia Antipolis in 1994 and shortly thereafter joined the French National Center for Scientific Research (CNRS) as a permanent staff member. In 2004, he was appointed tenure-track assistant professor at the École polytechnique fédérale de Lausanne (EPFL) where he created the Laboratory for advanced semiconductors for photonics and electronics. He was promoted to full professor in 2009. He was the director of the Institute of Condensed Matter Physics from 2012 to 2016 and then moved to the University of California at Santa Barbara where he spent 6 months as a visiting professor. Since 2018, he is the head of the School of Physics at the EPFL. He was awarded the Sandoz Family Foundation Grant for Academic Promotion, received the “Nakamura Lecturer” Award in 2010, the "Quantum Devices Award” at the 2017 Compound Semiconductor Week, and “2016 best teacher” award from the EPFL Physics School. His research interests are focused on the physics of nanostructures and III-V nitride semiconductor quantum photonics.
Benoît Marie Joseph DeveaudBenoît Deveaud est maintenant Directeur Adjoint à l'Enseignement et la Recherche, Ecole Polytechnique Palaiseau.
Benoît Deveaud est né en France en 1952. Il est admis en 1971 à l'Ecole Polytechnique de Paris et s'y spécialise en physique. En 1974, il entre au Centre National d'Etudes des Télécommunications. Il mène à la fois les études sur les centres profonds dans les semi-conducteurs III-V, et poursuit ses études de physique en préparant un diplôme d'études approfondies en physique des solides. En 1984, il soutient sa thèse de doctorat à l'Université de Grenoble.
Entre-temps, son équipe s'intéresse aux microstructures et lance une recherche sur les propriétés structurales et optiques des super réseaux à base d'arséniure de gallium. Ces études mettent en évidence par exemple le transport vertical dans les superréseaux ou la quantification des énergies de transition dans un puits quantique. En 1986 il rejoint l'équipe de Daniel Chemla aux Bell Laboratories (Holmdel USA) et participe à la mise au point de la première expérience de luminescence ayant une résolution temporelle meilleure qu'une picoseconde. Il étudie les processus de relaxation ultra-rapide dans les puits quantiques.
Rentré en France, au CNET, en 1988, il dirige un laboratoire d'études ultra-rapides, portant sur les propriétés optiques et électroniques des matériaux semi-conducteurs.
Nommé professeur en physique à l'EPFL en octobre 1993, son équipe de recherche étudie la physique des processus ultrarapides dans les micro- et nanostructures et les composants qui les utilisent.
Il a dirigé l'Institut de Micro et Optoélectronique depuis 1998 puis l'Institut de Photonique et électronique quantique de 2003 à 2007. Son équipe participe activement au Pôle national de Recherche "Quantum Photonics" dont il a été le Directeur Adjoint de 2001 à 2005 puis le Directeur de 2005 à 2013.
Il a été Doyen pour la recherche à l'EPFL de 2008 à 2014.
De 2014 à 2017, il a dirigé l'Institut de Physique.
Il a été editeur divisionnaire de Physical Review Letters de 2001 à 2007.
Vincenzo SavonaDe nationalité italienne, Vincenzo Savona est né en 1969. Il effectue ses études de physique à lEcole normale supérieure de Pise et à lUniversité de Pise. Puis il entreprend une thèse de doctorat à lInstitut de physique théorique de lEPFL. Il effectue des recherches post-doctorales à lEPFL, puis à lInstitut de physique de lUniversité Humboldt de Berlin. En 2002, il revient à lEPFL pour y constituer son groupe de recherche, bénéficiant dun subside «professeur boursier» du Fonds national suisse de la recherche scientifique. En 2006, il est nommé professeur assistant tenure-track à lEPFL et intègre le NCCR de photonique quantique. En 2010 il est nommé professeur associé. Actuellement, il dirige le Laboratoire de physique théorique des nanosystèmes.
Alexander TagantsevALEXANDER K. TAGANTSEV received the B.S. degree from St. Petersburg State University, in 1974, and Ph.D. degree from Ioffe Physico-Technical Institute, St. Petersburg, Russia, in 1982 in solid state physics. Before 1993, he worked in Ioffe Physico-Technical Institute, (1991-1993, head of laboratory), and St. Petersburg State Technical University (1991-1993, professor). He joined the ceramics laboratory of EPFL in 1993 where he was leading ( up to 2016) the section for Modeling and theory of Electroceramics. He is also currently engaged as a principle research fellow at Ioffe institute (St. Petersburg, Russia). Tagantsev is a theoretician of a broad domain of expertise from ferroelectricity and phonon physics to electrodynamics of superconductors and quantum optics. He is the author of key results on the theory of microwave dielectrics loss, dielectric polarization in crystalline materials, and relaxor ferroelectricity. He is also known in the field of ferroelectric thin films for elucidating works on the polarization switching and degradation in these systems. He authored or co-authored more than 300 scientific articles and two monograph (on domains in ferroics and tunable film bulk acoustic wave resonators). In 2007, Prof. Tagantsev was entitled to the Honors for lifetime achievement in the field of integrated ferroelectrics by the International Symposium on Integrated Ferroelectrics.
Fabrizio CarboneBirth 20/04/1976
Master degree: University of Pavia "optoelectronic engineering". September 2001.
Reasearch scientist at Pirelli Labs, Milan Italy between September 2000 and August 2002.
PhD in condensed matter physics from the University of Geneva, prof. van der Marel gorup. January 2007
Post doc in physical chemistry at Caltech in prof. Zewail`s group. March 2007-April 2009
Marco GrioniMarco Grioni est né à Milan (Italie). Après une thèse au Politecnico di Milano en 1982, il occupe des positions de recherche à Minneapolis (USA), Nijmegen (Pays Bas), Orsay (France) et Neuchâtel, où il devient Privat Docent en Physique du Solide en 1994. A l'EPFL depuis 1996, il est nommé professeur titulaire en 2005. Il enseigne la physique générale et dirige actuellement le Laboratoire de Spectroscopie Electronique de l'Institut de Physique.
Ses recherches portent sur les propriétés électroniques de nouveaux matériaux tels que les supraconducteurs à haute température, les métaux à basse dimension et les fermions lourds, qu'il étudie par la spectroscopie des photoélectrons (ARPES) à très haute résolution, par ultrafast time-resolved ARPES, et par d'autres techniques utilisant le rayonnement synchrotron. Auteur d'env. 220 publications, il participe activement au niveau suisse et européen au développement de nouveaux instruments. Entre 2003 et 2006 il a été chairman de l'organisation des utilisateurs du synchrotron européen de Grenoble (ESRF). De 2010 à 2017 il a été chairman du Scientific Advisory Committee du synchrotron national français SOLEIL.
Raphaël ButtéRaphaël Butté was born in Paris, France, in 1973. He received the PhD degree from the University Claude Bernard, Lyon, France, in 2000 for his research on the structural and optoelectronic properties of hydrogenated nanostructured silicon thin films with potential applications for photovoltaics and thin film transistors. He then moved to the University of Sheffield (2000-2003), UK, to work as postdoctoral research associate in the group of Prof. Maurice S. Skolnick (Fellow of the Royal Society). His research shifted to the optical properties of III-V semiconductors with a main focus on the nonlinear optical properties of cavity polaritons occurring in GaAs-based microcavities driven under resonant optical excitation. In 2004, he moved to Ecole Polytechnique Fédérale de Lausanne (EPFL) as scientific collaborator in charge of optical spectroscopy at LASPE (http://laspe.epfl.ch/), a newly established laboratory directed by Prof. Nicolas Grandjean. In 2010, he became permanent member of staff (Scientific Collaborator and Lecturer). He was promoted to the position of Senior Scientist in 2016. His current research activity deals with planar waveguides, microdisks and photonic crystals made from III-nitride semiconductors. In particular, he is leading the activity focusing on: (i) the physics of exciton-polaritons in planar waveguides and (ii) high-β photonic crystal nanolasers. He is the author of 119 scientific articles published in peer-reviewed international journals, 14 publications published in peer reviewed journals following an international conference (Web of Science > 4500 citations, h-index: 36; Google Scholar > 6200 citations, h-index: 42) and 6 book chapters. He has given 30 invited talks in International Conferences/Winter-Summer Schools/Workshops. He has been the Publications Chair/Guest Editor of the Proceedings of the 5th International Workshop on Nitride semiconductors (IWN2008) and also served as Scientific Secretary of IWN2008 and of the 5th International Conference on Spontaneous Coherence in Excitonic Systems (ICSCE5). In 2012, he was one of the 149 scientists recognized by the Outstanding Referee program (http://publish.aps.org/OutstandingReferees) of the American Physical Society (APS) selected from a pool of roughly 60,000 currently active referees. Since September 2019, he is an Editorial Board Member of the newly launched open access APS journal, Physical Review Research. From September 2013 until December 2017, he was one of the Editors of the journal "Superlattices and Microstructures" (Elsevier). Since September 2015 he is a member of the Physics Doctoral School Teaching Committee. He was also a member of the EPFL Teaching Conference from September 2015 until August 2017. 