NUMERICAL ANALYSIS O

Laboratoire de Physique Théorique
1er Congrès International sur les Plasmas et les Matériaux
(CIPM’14)
Tlemcen du 15 au 17 Novembre 2014
PA24
NUMERICAL ANALYSIS OF POSITIVE COLUMN IN NEXE DBD
DISCHARGE FOR VUV PRODUCTION
K. Khodja, H. Loukil, B. Larouci, A. Belasri
Laboratoire de Physique des Plasmas, Matériaux Conducteurs et leurs Applications,
Département de Physique Energétique, Faculté de Physique, USTO-MB, El M'naouer B. P.
1505 Oran, Algérie
[email protected]
ABSTRACT:
In this paper, the progress of the dielectric barrier discharge (DBD) for excimer lamp in NeXe
mixture is reported. The characteristics and the VUV production of NeXe DBD excilamps
have been calculated using of zero-dimensional kinetic model of high-pressure discharge
coupled to electrical circuit and Boltzmann equations. The DBD excilamp modeling has been
performed for a sinusoidal applied voltage of 3 kV, under a pressure of 400 torr and a mixture
of 50% of xenon in neon. The analyzed results concern, voltage across the gap Vp, dielectric
voltage Vd, the discharge current I, the charged and excimer species and photon densities. We
also investigated the excilamp luminous efficiency. The aim of our work is the contribution to
the excimer lamp improvement.
KEYWORDS: Modeling, Dielectric barrier discharge, Excimer lamp, NeXe mixtures,
Electrical and kinetic parameters.
2.0
3
Vd
2
Vp
1.5
Current density (A/cm²)
Voltages (kV)
4
Vapp
1
0
-1
1.0
0.5
0.0
-2
-0.5
-3
-1.0
-4
0
1
2
3
4
5
6
7
8
Time (µs)
0
2
4
6
8
10
12
14
Time (µs)
Figure 2. Time evolution of the discharge current I
Figure 1. Time evolution of (a) voltage across the
gap Vp, the dielectric voltage Vd and the applied
voltage Vapp
REFERENCES:
[1] Avtaeva S.V., Kulumbaev E.B.; Plasma Phys. Rep 35 329–342 (2009)
[2] Beleznai S.z., Mihajlik G., Maros I., Balazs L., Richter P.; J. Phys. D: Appl. Phys 43
015203 (2010)
[3] Belasri A., Khodja K., Bendella S., Harrache Z.; J. Phys. D: Appl. Phys 43 445202 (2010)
[4] Ouyang J., He F., Miao J.; J. Appl. Phys 101, 043303 (2007)
[5] Khodja K., Sisabeur H., Belasri A.; Advanced Materials Research 227 101-104 (2011)
[6] Khodja K. and Belasri A.; Radiation Effects & Defects in Solids 167 734–742 (2012)

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