Ernst-Eckhard-Koch-Preis 2021
Dr Fredrik Johansson (Institut des NanoSciences de Paris, CNRS, Sorbonne) receives the Ernst Eckhard Koch Prize for his outstanding dissertation. © F.J.
The Ernst Eckhard Koch Prize went to Dr Fredrik Johansson (now Institut des NanoSciences de Paris, CNRS, Sorbonne) for his dissertation at Uppsala University on "Core-hole Clock Spectroscopy Using Hard X-rays - Exciting States in Condensed Matter".
"Overall an exceptional dissertation achievement" said the expert jury, highlighting the number of Johansson’s high-quality scientific publications. "Also impressive is the demonstration of orbital and directional selectivity in ultrafast charge transfer in SnS2 using core-hole-clock," the jury said. Johansson then presented the method in a clear and concise talk: it allows a precise measurement of charge transfer times in different solids and promises deeper insights into solar cells, for example. From 01.10.2020 to 31.8.2021 Fredrik Johansson was a post-doc in the group of Prof. Alexander Föhlisch (University of Potsdam, HZB/BESSY).