Alexander Colsmann is the spokesperson of the KIT Energy Center at the Karlsruhe Institute of Technology (KIT) in Germany, representing 1 800 scientists working on all aspects of modern energy research. He is member of the board of directors at KIT’s Material Research Center for Energy Systems and leads the research group on organic photovoltaics. His research interests cover organic, perovskite and hybrid photovoltaics, OLEDs, printable electronics as well as renewable energies.