Dielectric barrier discharge
Basics
Within this method a dielectric barrier discharge is used to activate materials or to deposit thin films onto surfaces. Between two planar electrodes an about 1mm thick dielectric is placed working as a dielectric barrier. So the discharge between the electrodes burns as a lot of small microspots whereas the distance between the two electrode is in the range of some millimeters. If one place a workpiece or a flat planar material (glass, textiles, paper, foils) between the electrodes so it is possible to activate the material surface. Industrially broad used is this method to activate length-of-fabric materials. Ozone generators working on this principle, too. By using chemical precursor materials it is possible to deposit thin films onto flat material or length-of-fabric material.
Examples for possible applications
- Plasma activation of length-of-fabric materials
- Transmission improvement of glass or plastics
