Discharges in liquids gained a huge interest over the last decades as they can be used for example for wastewater treatment, for nanoparticle formation as well as for biomedical applications . These types of discharges are appealing, because they produce a range of reactive species like OH and H2O2 inside water. The in-liquid discharges are usually ignited in a pin-to-pin or pin-to-plate configuration using a high voltage (HV) pulse applied to an electrode.
Plasma Science Highlights
High power impulse magnetron sputtering (HiPIMS) plasmas produce a very energetic growth flux for the synthesis of thin films with superior properties. High power densities in the range of a few kW/cm2 are applied to a metal target electrode in short pulses with a length of 10 to 400 µs and duty cycles of a few percent or less in an argon plasma gas.