Properties of Cr-doped Al2O3 as a dielectric barrier layer for atmospheric pressure discharges

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Authors	ŠVANDOVÁ Lucia PAZDERKA Michal PŘIBYL Roman ŠŤASTNÝ Přemysl KELAR Jakub KELAR TUČEKOVÁ Zlata ČERNÁK Mirko
Year of publication	2024
Type	Conference abstract
MU Faculty or unit	Faculty of Science
Citation
Description	In this study, the authors present a complex investigation of the electrical and morphological properties of Cr-doped Alumina as a potential barrier for atmospheric pressure dielectric barrier discharges. Notably, two discharge types have been studied regarding the barriers' influence - coplanar dielectric barrier discharge in air and atmospheric pressure Townsend discharge in nitrogen. The effect of the Crdoping on the discharge has been characterized mainly via the ignition voltage measurement and working domain measurement. Additionally, the effect of doping on both bulk (permittivity) and surface properties, such as surface roughness and surface potential has been investigated.
Related projects:	R&D centre for plasma and nanotechnology surface modifications