This disclosure relates to a plasma generator including a porous ceramic dielectric. More specifically, this disclosure relates to a plasma generator for air purification capable of effectively generating ozone for removing bacteria, viruses, etc., and minimizing pressure loss while increasing air purification capacity by including a porous ceramic dielectric coated with an antibacterial material.

The dielectric barrier discharge plasma generator includes: a dielectric substrate that exhibits a plate shape extending in a first direction and has a first surface and a second surface located on an opposite side of the first surface in a second direction orthogonal to the first direction; a first electrode disposed on the dielectric substrate on a side of the first surface; a second electrode disposed at a position separated from the second surface of the dielectric substrate in the second direction; a gas flow path that is formed by a gap between the dielectric substrate and the second electrode and through which a gas flows in a third direction orthogonal to the first direction and the second direction; and an outlet provided at a first end which is one end portion of the gas flow path in the third direction.

A curved plasma electrode structure for skin surface treatment includes a curved electrode, a metal oxide dielectric layer formed on a curved surface of the curved electrode, and a buffer dielectric layer laminated to the metal oxide dielectric layer. The buffer dielectric layer has a lower dielectric strength than the metal oxide dielectric layer.

A flexible plasma generator is disclosed. The flexible plasma generator according to one aspect of the present disclosure includes: a dielectric substrate capable of elastic deformation; a first electrode formed on one surface of the dielectric substrate and being deformable and restorable in accordance with deformation of the dielectric substrate; and a second electrode formed on an opposite surface of the dielectric substrate and being deformable and restorable in accordance with deformation of the dielectric substrate. Plasma may be generated when an alternating current (AC) power source or a pulsed power source is applied to the first electrode and the second electrode.