scholarly journals Study of Argon Afterglow with the Air Addition

2016 ◽  
Vol 3 (3) ◽  
pp. 136-139
Author(s):  
V. Mazánková ◽  
D. Trunec ◽  
K. Petrová ◽  
F. Krčma
Keyword(s):  
Kinetic Model ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Emission Spectra ◽  
Optical Emission ◽  
Flow Tube ◽  
Post Discharge ◽  
Flowing Afterglow ◽  
Time Dependencies ◽  
Optical Emission Spectra

The reaction kinetics in argon flowing afterglow (post-discharge) with the air addition was studied by optical emission spectroscopy. The optical emission spectra were measured along the~post-discharge flow tube. A zero-dimensional kinetic model for the reactions in the afterglow was developed. This model allows to calculate the time dependencies of particle concentrations.

scholarly journals Methods Employed in Optical Emission Spectroscopy Analysis: a Review

2015 ◽  
Vol 11 (21) ◽  
pp. 239-267 ◽  
Author(s):  
D M Devia ◽  
L V Rodriguez-Restrepo ◽  
E Restrepo-Parra
Keyword(s):  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Emission Spectra ◽  
Optical Emission ◽  
Spectroscopy Analysis ◽  
Electronic Temperature ◽  
Arc Discharges ◽  
Plasma Techniques ◽  
Fundamental Physical ◽  
Physical Principles

In this work, different methods employed for the analysis of emission spectra are presented. The proposal is to calculate the excitation temperature (Texc), electronic temperature (Te) and electron density (ne) for several plasma techniques used in the growth of thin films. Some of these tecnniques include magnetron sputtering and arc discharges. Initially, some fundamental physical principles that support the Optical Emission Spec-troscopy (OES) technique are described; then, some rules to consider during the spectral analysis to avoid ambiguities are listed. Finally, some of the more frequently used spectroscopic methods for determining the physical properties of plasma are described.

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

2015 ◽  
Vol 3 ◽  
pp. 1-6 ◽  
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.

scholarly journals Spectroscopic diagnostic complex based on the magnetron sputtering device with a digital method of the data mining

2020 ◽  
Vol 2 (2) ◽  
pp. 1-8
Author(s):  
Afanasіeva I.A. ◽  
Afanasiev S.N. ◽  
Azarenkov N.A. ◽  
Bobkov V.V. ◽  
Gritsyna V.V. ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Plasma Parameter ◽  
Discharge Plasma ◽  
Emission Spectra ◽  
Optical Emission ◽  
Digital Processing ◽  
Magnetron Discharge ◽  
Diagnostic Complex

A diagnostic complex based on a magnetron sputtering device is proposed for studying a magnetron discharge plasma parameter by optical emission spectroscopy, using two spectroscopic systems: photographic and photoelectric. Software for digital processing of the obtained emission spectra is developed. The results obtained by the two spectroscopic systems are compared.

Argon-Oxygen Post-Discharge Treatment of Hexatriacontane: Heat Transfer between Gas Phase and Sample

2008 ◽  
Vol 373-374 ◽  
pp. 421-425 ◽  
Author(s):  
M. Mafra ◽  
Thierry Belmonte ◽  
A.M. Maliska ◽  
A.S. da Silva Sobrinho ◽  
U. Cvelbar ◽  
...  
Keyword(s):  
Gas Phase ◽  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Optical Emission ◽  
Rotational Spectrum ◽  
Gas Temperature ◽  
Transition Intensity ◽  
Post Discharge ◽  
Transition Surface

Characterization of the interaction between an argon-oxygen post-discharge and hexatriacontane (C36H74) is carried out. Optical emission spectroscopy using the atmospheric band O2 (b1Σg +, v=0 X3Σg −, v’=0) at 760 nm gives simultaneously the evolution of the O(3P) concentration above the surface and the gas temperature by simulation of the rotational spectrum of the transition. Surface reactions contribute to the heating in the sample and to a substantial increase in the gas temperature. Finally, a strong correlation between the time evolutions of the transition intensity and the sample temperature is observed, suggesting that O(3P) is the main reactive species that produces the heating and the chemical changes in the HTC.

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