Title :
The consequences of remnant surface charges on microdischarge spreading in dielectric barrier discharges
Author :
Xu, Xudong Peter ; Kushner, Mark J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
fDate :
2/1/1999 12:00:00 AM
Abstract :
Dielectric barrier discharges (DBDs) consist of filamentary microdischarges (10 s-100 s μm diameter) randomly distributed between the electrodes. Charging of the dielectric terminates the microdischarge by removing voltage from the gap. When the applied voltage changes polarity, the residual dielectric charges from the previous pulse can enhance the gap voltage so that a more intense electron avalanche occurs. In this paper, results from a two-dimensional model of a DBD are used to demonstrate the consequences of dielectric charging on spreading of the microdischarges
Keywords :
discharges (electric); electron density; plasma density; plasma-wall interactions; surface charging; 10 to 100 mum; applied voltage; dielectric barrier discharges; dielectric charging; electrodes; electron avalanche; filamentary microdischarges; gap voltage; microdischarge spreading; polarity; randomly distributed microdischarges; remnant surface charges; residual dielectric charges; two-dimensional model; Current density; Dielectrics; Electrodes; Electrons; Equations; Hydrodynamics; Plasma chemistry; Surface charging; Surface discharges; Voltage;
Journal_Title :
Plasma Science, IEEE Transactions on
