Time-resolved study of the electron temperature and number density of argon metastable atoms in argon-based dielectric barrier discharges

被引：21

作者：

Desjardins, E. ^{[1
]}

Laurent, M. ^{[2
,3
,4
]}

Durocher-Jean, A. ^{[1
]}

Laroche, G. ^{[2
,3
]}

Gherardi, N. ^{[4
]}

Naude, N. ^{[4
]}

Stafford, L. ^{[1
]}

机构：

[1] Univ Montreal, Dept phys, Montreal, PQ, Canada

[2] Univ Laval, Dept Genie Mines Met & Mat, Ctr Rech Mat Avances, Lab Ingn, Quebec City, PQ, Canada

[3] CHU Quebec, Hop St Francois, Ctr Rech, Quebec City, PQ, Canada

[4] Univ Toulouse, CNRS, INPT, UPS,LAPLACE, Toulouse, France

来源：

PLASMA SOURCES SCIENCE & TECHNOLOGY | 2018年 / 27卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

plasma diagnostics; dielectric barrier discharges; electron temperature; ATMOSPHERIC-PRESSURE; IMPACT EXCITATION; RATE COEFFICIENTS; CROSS-SECTIONS; RATE CONSTANTS; PLASMA; DIAGNOSTICS; DEPOSITION; LINES;

D O I：

10.1088/1361-6595/aaa5d9

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A combination of optical emission spectroscopy and collisional-radiative modelling is used to determine the time-resolved electron temperature (assuming Maxwellian electron energy distribution function) and number density of Ar 1s states in atmospheric pressure Ar-based dielectric barrier discharges in presence of either NH3 or ethyl lactate. In both cases, Te values were higher early in the discharge cycle (around 0.8 eV), decreased down to about 0.35 eV with the rise of the discharge current, and then remained fairly constant during discharge extinction. The opposite behaviour was observed for Ar Is states, with cycle-averaged values in the 10(17) m(-3) range. Based on these findings, a link was established between the discharge ionization kinetics (and thus the electron temperature) and the number density of Ar 1s state.

引用

页数：8

共 40 条

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