Patent ID: 8136481
Filing Date: 2012-03-20
Classification: H05H

Abstract:
1. A device for plasma treatment at atmospheric pressure, the device having: an electrode, a dielectric barrier directly arranged in front of the electrode and covering a surface of the electrode, and an AC high voltage source for applying an AC high voltage to the electrode to bring about a dielectric barrier discharge in a gas at atmospheric pressure present in front of an outer surface of the dielectric barrier, in order to generate a plasma, wherein the device has no counter-electrode for the electrode with the dielectric barrier, wherein the electrode, at the surface of the electrode covered by the dielectric barrier, comprises a two-dimensional distribution of pointed tips pointing towards the gas present in front of the dielectric barrier, wherein the outer surface of the dielectric barrier in front of which the gas is present is smooth, and wherein the electrode is made of an electrically conductive powder which is located in a ceramic solid body providing the dielectric barrier.