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 7 2014
Accepted
18 9 2014
First published
07 10 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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