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

Volume

27

Issue

1

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

108

Lastpage

109

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;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.763070

Filename

763070