Analysis of N2 molecules dissociation degree in pulsed discharge plasma under atmospheric pressure

被引：0

作者：

Zhang, Lianshui ^{[1
]}

Dang, Wei ^{[1
]}

Liu, Fengliang ^{[1
]}

Duan, Shuxing ^{[1
]}

机构：

[1] Hebei Key Laboratory of Optoelectronic Information, College of Physics Science and Technology, Hebei University, Baoding

来源：

Guangxue Xuebao/Acta Optica Sinica | 2009年 / 29卷 / SUPPL. 2期

关键词：

Dissociation; Emission spectrum; Plasma; Pulsed discharge;

D O I：

10.3788/AOS200929s2.0155

中图分类号：

学科分类号：

摘要：

An analysis of N2 molecules dissociation degree in pulsed discharge plasma under atmospheric pressure is presented by using emission spectrum method. The dissociation degree of N2 molecules is positively correlated with the ratio of the intensity of N atomic 3p(4S0) → 3s(4P)(746.8 nm) to the intensity of N2 C3Πu → B3Πg(337.1 nm). The experiment investigates the effects of discharge voltage and water vapor on the dissociation of N2 molecules. Intensity ratio of N line to N2 line increases monotonously from 0.38~0.91 with increasing discharge voltage. While water vapor exists in the gas, intensity ratio of N line to N2 decreases significantly and its increasing trend with increasing discharge voltage also slows down. The results shows that increasing discharge voltage is helpful to dissociation of N2 molecules and water vapor inhibits the dissociation of N2 molecules.

引用

页码：155 / 158

页数：3

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