Gap-dependent transitions of atmospheric microplasma in open air

Chu, Hong-Yu; Huang, Bo-Shiun
April 2011
Physics of Plasmas;Apr2011, Vol. 18 Issue 4, p043501
Academic Journal
We report on the gap dependence of the planar atmospheric microplasma in air. We investigate the transitions of the dielectric barrier discharge in open air, including the random walk filaments (plasma columns), localized filaments, stochastic filaments, and diffuse discharge. A star-shaped filamentary discharge pattern is observed after the formation of the localized filaments. The liquid drops found on the dielectric surface further become a confining pattern for star-shaped discharge. We also demonstrate the applications of the insulating pattern for the use of the plasma display in open air by the handwritten characters with UV adhesive.


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