Francisco Fabregat Santiago (B.Sc. in Physics at Universitat de Valencia and University of Leeds in 1995 , Ph.D. from Universitat Jaume I in 2001) joined Universitat Jaume I in 1998 where he is currently full Professor at Physics Department and active member Institute of Advanced Materials (INAM). Among others he made several research stays at Uppsala University, Imperial College, École Polytechnique Fédérale de Lausanne. He authored more than 100 peer reviewed papers and 5 book chapters, that accumulate more than 11000 cites with an h-index of 54. Prof. Fabregat-Santiago is an expert in electro-optical characterization of devices and particularly known by his works in the use of the impedance spectroscopy to model, analyze and interpret the electrical characteristics (charge accumulation, transfer reactions and transport) of films and devices including ZnO and TiO2 nanostructured films (nanocolloids, nanorods and nanotubes), dye sensitized solar cells, perovskite solar cells, electrochromic materials and liquid and solid state hole conductors. His current interests are focused in the in the analysis of the fundamental properties of nano and bio materials for their application in solar cells, water decontamination, bio-energy, sensors and in the (photo)electrochemical production of added value chemicals.

Sophia Haussener is a Professor heading the Laboratory of Renewable Energy Science and Engineering at the Ecole Polytechnique Federale de Lausanne (EPFL). Her current research is focused on providing design guidelines for thermal, thermochemical, and photoelectrochemical energy conversion reactors through multi-physics modelling and experimentation. Her research interests include: thermal sciences, fluid dynamics, charge transfer, electro-magnetism, and thermo/electro/photochemistry in complex multi-phase media on multiple scales. She received her MSc (2007) and PhD (2010) in Mechanical Engineering from ETH Zurich. She was a postdoctoral researcher at the Joint Center of Artificial Photosynthesis (JCAP) and the Lawrence Berkeley National Laboratory (LBNL) between 2011 and 2012. She has published over 70 articles in peer-reviewed journals and conference proceedings, and 2 books. She has been awarded the ETH medal (2011), the Dimitris N. Chorafas Foundation award (2011), the ABB Forschungspreis (2012), the Prix Zonta (2015), the Global Change Award (2017), and the Raymond Viskanta Award (2019), and is a recipient of a Starting Grant of the Swiss National Science Foundation (2014).