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Guiding of Reactive Plasma Species by Micro‐Channels
Author(s) -
Li YangFang,
Zimmermann Julia L.,
Klämpfl Tobias,
Morfill Gregor E.
Publication year - 2012
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201100182
Subject(s) - plasma , diffusion , atmospheric pressure plasma , electromagnetic shielding , chemistry , analytical chemistry (journal) , materials science , nanotechnology , optoelectronics , environmental chemistry , composite material , physics , quantum mechanics , thermodynamics
We investigate the effect of the micro‐channel plate (MCP) on the diffusive transport of reactive plasma species generated by a cold atmospheric discharge. The diffusion of the reactive plasma species is guided by the micro‐channels and the side diffusion is consequently reduced. Therefore the reactive plasma species are more effectively transported to the target surface. A higher bactericidal efficiency is found in comparison with the open, unhindered configuration when the open area ratio of the MCP equals 50%. Furthermore, the experimental results show a significant UV reduction because of the shielding by the MCP.