Helmholtz-Zentrum Berlin
Director Institute Silicon Photovoltaics
Forschungszentrum Jülich
Scientist at Institute Photovoltaics
Forschungszentrum Jülich
Head of the group Solar Cell Technology
Technische Universität Berlin
Full Professor
Helmholtz-Zentrum Berlin
Scientific Director
Helmholtz-Zentrum Berlin
Acting Scientific Director
RWTH Aachen University