Uli Würfel is the Head of Department Organic and Perovskite Photovoltaics at Fraunhofer ISE. He studied Physics at the Universities of Freiburg and Heidelberg and received his PhD from the University of Freiburg in 2006 with the topic “Electron transport in the nanoporous TiO2 layer of dye solar cells”, which was carried out in close collaboration with the Fraunhofer ISE.
His main research interests are characterization and modelling of organic, perovskite and other types of solar cells and the upscaling of organic solar cells.

Lukas Wagner is currently PostDoc researcher at the Solar Energy Conversion Group at the University of Marburg. He obtained his PhD (2021) at Fraunhofer Institute for Solar Energy Systems ISE and University of Freiburg on a PhD scholarship of the German Federal Environmental Foundation (DBU).

He obtained a B.Sc. in Electrical Engineering and Information Technology (2013) and a M.Sc. in Optics and Photonics (2015) at the Karlsruhe Institute of Technology (KIT). His bachelor and master theses were carried out at Georgia Institute of Technology in Atlanta, USA, and Fraunhofer ISE, respectively. After his M.Sc. studies, he worked at the French National Research Center for Solar Energy (CEA-INES), developing flexible perovskite solar cells.

Lukas’ research interests are perovskite solar cells with carbon electrodes, advanced photoluminescence-based characterization techniques and assessments of sustainability in energy technologies.

Eugene A. Katz is a professor at the Ben-Gurion University of the Negev. His research interests include studies and development of a wide range of materials and devices for solar energy conversion such as organic and perovskite-based photovoltaics, concentrator solar cells operated at ultra-high solar concentration (up to 10,000 suns), as well as history of science.

Markus Lenz is a biologist with a background from RWTH Germany and a Ph.D. in Environmental Engineering from Wageningen University, Netherlands. His primary research revolves around the recycling of industrial by-products and end-of-life products such as (perovskite) photovoltaics. Additionally, his team specializes in conducting environmental fate assessments of metals and metalloids.

Dr. Juliane Borchert is the head of the junior research group “Optoelectronic Thin Film Materials” at the University of Freiburg as well as the head of  the research group “Perovskite Materials and Interfaces” at the Fraunhofer Institute for Solar Energy Systems. She studied physics in Berlin, Groningen, and Halle (Saale). Her PhD research was conducted at the University of Oxford where she focused on co-evaporated perovskites for solar cells. She continued this research as a postdoctoral researcher at the University of Cambridge and AMOLF research institute in Amsterdam. Now she leads a team of researchers and technicians who are on a mission to develop the next generation of solar cells combining novel metal-halide perovskite semiconductors and established silicon technology into highly efficient tandem solar cells.

Paul Fassl studied Physics at Heidelberg University, where he graduated with a master’s degree in 2013 and a Ph.D. in 2018. For his PhD, he received a research fellowship from the Heidelberg Graduate School of Fundamental Physics and a mobility fellowship from Heidelberg University for a research stay at Oxford University. His PhD thesis was entitled “Exploration of Properties, Stability and Reproducibility of Perovskite Solar Cells.” In 2019, he joined the Next Generation Photovoltaics division of Prof. Ulrich Paetzold at the Light Technology Institute (LTI) and Institute of Microstructure Technology (IMT) at Karlsruhe Institute of Technology (KIT), where he has been working on the optoelectronic properties of perovskite semiconductors and the development of perovskite/silicon tandem photovoltaics. Since 2023, Fassl is a Group Leader at LTI/IMT focusing on the fundamental understanding and development of thermally evaporated perovskite solar cells. His group is involved in various German and European research projects on perovskite/silicon tandem photovoltaics.