Abstract: A plasma generator generates atmospheric pressure, low temperature plasma (cold plasma), and includes a thin plate-like first electrode defining a planar bottom surface. A thin plate-like second electrode defines a planar top surface. The second electrode opposes the first electrode, such that the bottom surface of the first electrode faces the top surface of the second electrode. A first dielectric layer is disposed on the bottom surface of the first electrode, and a second dielectric layer is disposed on the top surface of the second electrode. At least one spacer supports the first and second electrodes to define a predetermined gap between the first and second dielectric layers. A high frequency power supply supplies electrical power to the first and second electrodes at a predetermined voltage and high frequency, such that, based on the predetermined gap between the first and second dielectric layers, cold plasma is generated.

Abstract: Embodiments relate to a plasma generator including a dielectric layer elongated in a longitudinal direction that extends 0.01 mm-2 mm in a thickness direction perpendicular to the longitudinal direction. The dielectric layer defines first and second planar surfaces that are separated in the thickness direction. A first electrode is disposed along a first portion of the first planar surface. A second electrode is disposed along a second portion of the second planar surface, such that at least a part of the first and second portions are separated in the longitudinal direction of the dielectric layer. A power supply is configured to supply electrical power to the first and second electrodes at a predetermined voltage and frequency, wherein plasma is generated adjacent each of the first and second electrodes and along the first and second surfaces of the dielectric layer other than the first and second portions.

Abstract: A plasma generator apparatus generates atmospheric pressure and low temperature plasma that can communicate with a gas to generate reactive species that can be contained in a liquid. The plasma generator has a first electrode and a second electrode opposing each other with a space there between that is configured to house the gas. The generator also has a dielectric layer having a relative permittivity between 2 and 500, and a thickness of 3 mm or less; a power supply configured to supply electrical power to the first and second electrodes at a predetermined voltage and frequency, such that, based on a distance between the first and second electrodes, and the presence of the dielectric layer, atmospheric pressure, low temperature plasma is generated in the space so as to communicate with the gas disposed therein to thereby generate the reactive species.