Optical Emission Spectroscopy of Argon-Fluorocarbon-Oxygen Fed Atmospheric Pressure Dielectric Barrier Discharges

Our recent work on optical emission spectroscopy (OES) and laser-induced fluorescence (LIF) applied to dielectric barrier discharge (DBD) at atmospheric pressure (ATP) is reported. The interplay of discharge kinetics and diagnostic techniques features is evidenced, with emphasis on collision processes that, with their variety of state-to-state characteristics and rate constants, determine the observation of a peculiar collision-dominated non-equilibrium system.

Download Full-text

Investigations of Penning ionization of Dielectric Barrier Discharges in Helium at Atmospheric Pressure by optical emission spectrometry

2008 International Conference on High Voltage Engineering and Application ◽

10.1109/ichve.2008.4774037 ◽

2008 ◽

Author(s):

L. Yang ◽

X. L. Wang ◽

Y. P. Hao

Keyword(s):

Atmospheric Pressure ◽

Optical Emission ◽

Optical Emission Spectrometry ◽

Emission Spectrometry ◽

Dielectric Barrier Discharges ◽

Penning Ionization ◽

Dielectric Barrier ◽

Barrier Discharges

Download Full-text

Measurement of the electron temperature in dielectric barrier discharge by line-ratio method of optical emission spectroscopy

Journal of Science and Engineering ◽

10.3126/jsce.v3i0.22382 ◽

2015 ◽

Vol 3 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

R.B. Tyata ◽

D.P. Subedi ◽

C.S. Wong

Keyword(s):

Electron Temperature ◽

Dielectric Barrier Discharge ◽

Atmospheric Pressure ◽

Emission Spectroscopy ◽

Optical Emission Spectroscopy ◽

Barrier Discharge ◽

Emission Spectra ◽

Optical Emission ◽

Ratio Method ◽

Dielectric Barrier

In this paper, experimental results of atmospheric pressure dielectric barrier discharge (DBD) produced in air and nitrogen gas have been presented. The discharge was generated using a high voltage (0-20 kV) power supply operating at 10-30 kHz in hemispherical electrodes system with dielectric barrier of glass between the electrodes. Optical emission spectroscopy was used for the characterization of the discharge produced at atmospheric pressure. The emission spectra in the range of 200 nm to 450 nm have been analyzed to estimate the electron temperature by line intensity ratio method. The results show that the electron temperature is about 0.70 eV in air and 0.71 in nitrogen.

Download Full-text

Radially Resolved Optical Emission Spectral Imaging Study of an Atmospheric Pressure µDBD Jet for Elucidating the Effect of Sample Surface Material on the Underlying Mechanisms

Journal of Analytical Atomic Spectrometry ◽

10.1039/d0ja00522c ◽

2021 ◽

Author(s):

Songyue Shi ◽

Kevin Finch ◽

Gerardo Gamez

Keyword(s):

Atmospheric Pressure ◽

Plasma Plume ◽

Imaging Study ◽

Optical Emission ◽

Sample Surface ◽

Dielectric Barrier Discharges ◽

Dielectric Barrier ◽

Ionization Sources ◽

Underlying Mechanisms ◽

Barrier Discharges

Dielectric barrier discharges are receiving increasing attention as sampling/ionization sources for ambient mass spectrometry. Nevertheless, the underlying mechanisms are not completely understood, particularly when the plasma plume is exposed to...

Download Full-text