1990-1996: studied physics (Diploma) at Ruprecht-Karls-University Heidelberg
05/1996 - 05/1999: PhD at Max Planck Institute for Nuclear Physics, Department of Atmospheric Physics, Heidelberg
06/1999 - 02/2000: Post-Doc, Max Planck Institute for Nuclear Physics, Department of Atmospheric Physics, Heidelberg
03/2000 - 12/2001: Post-Doc at Aeronomy Laboratory, National Oceanic and Atmospheric Administration NOAA, Atmospheric Chemical Kinetics Group, Boulder, Colorado, USA
01/2002 - 09/2007: Senior Scientist, Institute for Atmospheric Physics, Johannes Gutenberg University-Mainz, Department of Particle Chemistry
10/2007 - present: Professor for Experimental Atmospheric Research at the Institute for Atmospheric and Environmental Sciences, Goethe-University Frankfurt am Main
Research foci: Aerosol nucleation (especially ion-induced aerosol nucleation), atmospheric ice nuclei, airborne measurements, CIMS measurements of gaseous H2SO4, condensation particle counters.
Currently scientific coordiantor of CLOUD-ITN and coordinator of DFG special priority
program SPP 1294 "HALO"
European Geophysical Union (EGU), German Society for Aerosol Research (GaeF), German Physical Society (DPG), German Meteorological Society (DMG)
Editor: Atmospheric Chemistry and Physics