Areal homogeneity verification of plasma generated by diffuse coplanar surface barrier discharge in ambient air at atmospheric pressure

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Authors

ŠTĚPÁNOVÁ Vlasta KELAR Jakub GALMIZ Oleksandr ZEMÁNEK Miroslav SLAVÍČEK Pavel BUČEK Andrej ČERNÁK Mirko

Year of publication 2017
Type Article in Periodical
Magazine / Source Contributions to Plasma Physics
MU Faculty or unit

Faculty of Science

Citation
Web http://onlinelibrary.wiley.com/doi/10.1002/ctpp.201600093/abstract
Doi http://dx.doi.org/10.1002/ctpp.201600093
Field Plasma physics
Keywords diffuse coplanar surface barrier discharge; effective thickness of plasma layer; optical emission spectroscopy; plasma diagnostics
Description This paper deals with an optical emission spectroscopy study of a diffuse coplanar surface barrier discharge (DCSBD) in air at atmospheric pressure. The main aim of this study was to verify the areal homogeneity of the generated plasma, which is important for many applications like treatment of nonwoven fabrics, glass, metals, polymers, foils, and so on. Optical emission spectra of DCSBD plasma in air were measured for three different frequencies (15, 30, and 50 kHz) of the applied voltage. Comparison of the calculated rotational and vibrational temperatures was carried out, and areal homogeneity of plasma was proved. Electrical parameters of discharge such as the plasma power using the area of the Lissajous figures and energy transfer efficiency to the discharge were also investigated. The effective thickness of plasma layer as a function of the input power was measured.
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