The relation between the production efficiency of nitrogen atoms and the electrical characteristics of a dielectric barrier discharge

F.J.J. Peeters, R. Yang, M.C.M. van de Sanden

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)
147 Downloads (Pure)

Abstract

In a nitrogen plasma jet, atomic nitrogen is the longest lived radical species and, through recombination, gives rise to highly reactive excited nitrogen species. In this paper, the atomic nitrogen concentration in the effluent of a nitrogen-fed dielectric barrier discharge (DBD) is determined by using direct 2D imaging of the visible FPS emission. The relationship between radical production and the electrical characteristics of the discharge is assessed by making use of an electrical model which assumes only a part of the electrode area is discharged every half-cycle. For the pure nitrogen jet used here, the specific energy input per nitrogen atom is found to be 320 ± 20 eV atom-1, comparable to the specific energy for other atomic nitrogen sources in the literature. It is shown that the production efficiency of atomic nitrogen does not depend on the amplitude of the applied voltage of the DBD and any increase in radical production is due to an increase of the electrode area covered by the discharge, i.e. an increase in the number of microdischarges.

Original languageEnglish
Article number045006
Pages (from-to)1-9
JournalPlasma Sources Science and Technology
Volume24
Issue number4
DOIs
Publication statusPublished - 1 Aug 2015

Keywords

  • dielectric barrier discharge
  • electrical properties
  • kinetic model
  • nitrogen
  • optical emission spectroscopy

Fingerprint

Dive into the research topics of 'The relation between the production efficiency of nitrogen atoms and the electrical characteristics of a dielectric barrier discharge'. Together they form a unique fingerprint.

Cite this