Atmospheric-pressure Non-equilibrium Microplasmas using Liquids and Miniature Gas Flows

Abstract

We developed noble schemes to generate atmospheric-pressure microplasmas, in which the mass of initial materials such as gases or liquids is limited to a small amount. A miniature gas flow through a nozzle electrode was used to generate direct current glow or corona microdischarges with a metal or an electrolyte cathode. High-power microplasmas were operated by fast pulsed voltages. Pulsed microplasmas were created using a droplet or a filament of aqueous solution of ethanol.