The group "Allgemeine Elektrotechnik und Plasmatechnik" at the faculty for engineering and information science.
An atmospheric-pressure surface dielectric barrier discharge in nitrogen–oxygen mixtures is studied under microsecond (ls) and nanosecond (ns) pulsed excitation. Using intensified charge-coupled device imaging and phase-resolved optical emission...
Helium metastable species play a critical role in sustaining radio-frequency (RF) driven micro atmospheric pressure plasma jets through Penning ionization and for the generation of reactive oxygen and nitrogen species (RONS). Their densities are...
This work investigates the transitions between ohmic mode and Penning-Gamma mode in a capacitively coupled radio frequency micro atmospheric pressure plasma jets operated in He/O2 mixtures by comparing phase-resolved optical emission spectroscopy...
Microdischarges formed in bubbles immersed in liquids are of interest for materials synthesis and chemical conversion applications in the frame of plasma-driven electrochemistry. A key challenge associated with controlling such processes is the...
Precise control of ion energy distribution functions (IEDF) is crucial for selectivity as well as control over sputter rate and substrate damage in nanoscale plasma processes. In this work, a low frequency (100 kHz) tailored pulse-wave-shaped bias...
Plasma liquid interactions are important for a range of applications. For these, H2O2 and OH represent two key reactive species, whose concentrations in liquids need to be controlled for effective application outcomes. Here, a combination of gas...
Plasma electrolytic oxidation (PEO) is a technique used to create oxide-ceramic coatings on lightweight metals, such as aluminium, magnesium, and titanium. PEO is known for producing coatings with high corrosion resistance and strong adhesion to...
A twin surface dielectric barrier discharge was used with a two-component coating to oxidize 300 ppm n-butane to CO2 and H2O in synthetic air at room temperature and at 160 ℃. The integration of BaTiO3 as a base material allowed the successful...
High-frequency technological low-temperature plasmas play a key role in various industrial processes of high societal relevance such as semiconductor manufacturing and gas conversion. Due to their complexity, the fundamentals of their operation...
The presented work investigates a surface dielectric barrier discharge (SDBD) operated dry synthetic air as the working gas using a combination of experimental measurements and simulations. The primary objective is to characterize the production...
