We do applied research on the production of silicon for power electronics and photovoltaics application. In the field of power electronics, we pay special attention to the formation of dislocations and point defects during Czochralski growth of silicon crystals with extremely low and high electrical resistivity, during epitaxy, and further device processing steps together with our partners.
We support the development of the next generation Czochralski pullers and processes with respect to lower production costs, higher throughput and better material quality by experimental analysis and numerical simulation. Additionally, we develop and test innovative crucible and coating materials, new hot zone parts, alternative feedstock material, and explore the recycling of silicon waste.
We also perform fundamental studies of crystal growth phenomena by using microgravity conditions. Here our focus is the investigation of particle engulfment and the facet formation phenomena.