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Slot microplasma in low temperature, atmospheric pressure air is developed for applications in surface, gas, or biomedical treatments. Dielectric barrier discharge between two parallel aluminum (Al) rods covered with nanoporous alumina films, ∼60μm thick and mean pore diameters of ∼40nm, is driven by 20kHz ac power. The glow microplasma is stable and spatially uniform, using 2–10W, in the gap of 100–500μm between the rods of 3mm diameter and 5cm long. This type of slot discharge operational in ambient temperature atmospheric pressure air can provide large-scale nonthermal plasma for any applications requiring continuous low temperature treatments.
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Koo et al. (2007) studied this question.
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