Release Time:2022-07-02  Hits:

Indexed by: Journal Article

Date of Publication: 2022-06-30

Journal: 光谱学与光谱分析

Institution: 物理学院

Volume: 31

Issue: 11

Page Number: 2891-2895

ISSN: 1000-0593

Abstract: An atmospheric-pressure Ar/N-2 glow discharge was achieved in a mode stricken between bare metal plate electrodes by radio-frequency power supply at 13.56 MHz. The rotational temperature was determined by using the Boltzmann plot of the OH (A (2)Sigma(+) -> X (2)Pi) radical and the variation tendency of the gas temperature versus the input power was obtained. Furthermore, the measurement of the sequences of vibrational bands of N-2 second positive system (C (3)Pi(u) -> B (3)Pi(g)) is made and the vibrational temperature was determined correspondingly. The experiment results showed that the emission peaks of N-2 (C (3)Pi(u)) reached the maximum at the nitrogen flow rate of 80 mL . min(-1) with increasing addition of nitrogen, the gas temperature increased from 342 to 523 K when the input power increased from 30 to 210 W, and the vibrational temperature changed slightly when the gas flow rate of nitrogen increased from 30 to 140 mL . min(-1).

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