Carl-Ramsauer-Award for excellent dissertation
Dr. Raphael Jay has received this year's Carl-Ramsauer-Prize of the German Physical Society of Berlin. © Max Threlfall
Dr. Raphael Jay has received this year's Carl-Ramsauer-Prize of the German Physical Society of Berlin (DPGzB). The prize honours outstanding dissertations in physics and related fields and will be awarded during a festive colloquium on 18 November 2020 in the Magnus-Haus.
Dr. Raphael Jay studied ultrafast charge transfer dynamics in iron complexes during his doctorate at the University of Potsdam under the supervision of Prof. Alexander Föhlisch. In the context of the EDAX project at BESSY II, he carried out measurements with ultra-short X-ray pulses, whereby the experimental infrastructure was also used for measurements at the Free Electron Laser LCLS in Stanford.
The complex measurement results were analysed within the HZB Virtual Institute "Dynamic Pathways in multimensional Landscapes" in collaboration with Stockholm University. In future, this type of experiment will also be possible at the European XFEL in Hamburg, which was developed in parallel within the EDAX project. Raphael Jay is now continuing his scientific work at the University of Uppsala.
- IRIS beamline at BESSY II extended with nanomicroscopyThe IRIS infrared beamline at the BESSY II storage ring now offers a fourth option for characterising materials, cells and even molecules on different length scales. The team has extended the IRIS beamline with an end station for nanospectroscopy and nanoimaging that enables spatial resolutions down to below 30 nanometres. The instrument is also available to external user groups.
- A simpler way to inorganic perovskite solar cellsInorganic perovskite solar cells made of CsPbI3 are stable over the long term and achieve good efficiencies. A team led by Prof. Antonio Abate has now analysed surfaces and interfaces of CsPbI3 films, produced under different conditions, at BESSY II. The results show that annealing in ambient air does not have an adverse effect on the optoelectronic properties of the semiconductor film, but actually results in fewer defects. This could further simplify the mass production of inorganic perovskite solar cells.
- Spintronics: A new path to room temperature swirling spin texturesA team at HZB has investigated a new, simple method at BESSY II that can be used to create stable radial magnetic vortices in magnetic thin films.