Issue 11, 2014

Characterization of an asymmetric DBD plasma jet source at atmospheric pressure

Abstract

Non-thermal atmospheric pressure plasma jets or plasma plumes have recently been largely investigated in applications like materials processing, biomedical treatment and analytical chemistry. In this paper He-discharges in an asymmetrical Dielectric Barrier Discharge (DBD) have been experimentally studied with an Intensified Charge Coupled Device (ICCD) camera, Optical Emission Spectroscopy (OES) and Time-Of-Flight Mass Spectrometry (TOF-MS) measurements. The development of the plasma plume, its apparent length and the spatial distribution of the excited and ionized species along the plasma plume have been characterized as a function of the applied voltage and the gas flow rate. A TOF-MS spectrometer has been used to characterize ionized species (positive and negative ions) produced by the plasma alone and the plasma with addition of ethanol, both as a function of the distance between the plasma plume and the vacuum interface of the spectrometer.

Graphical abstract: Characterization of an asymmetric DBD plasma jet source at atmospheric pressure

Article information

Article type
Paper
Submitted
28 Jul 2014
Accepted
18 Sep 2014
First published
07 Oct 2014

J. Anal. At. Spectrom., 2014,29, 2050-2057

Characterization of an asymmetric DBD plasma jet source at atmospheric pressure

L. Chauvet, L. Thérèse, B. Caillier and P. Guillot, J. Anal. At. Spectrom., 2014, 29, 2050 DOI: 10.1039/C4JA00255E

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