| 光谱学与光谱分析 |
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| Optical Diagnosis of Large Area Homogenous Dielectric Barrier Discharge in Nitrogen at Atmospheric Pressure |
| JIA Li, PENG Xu-wen, YANG De-zheng, WANG Wen-chun*, ZHENG Shu |
| Key Lab of Materials Modification (Dalian University of Technology), Ministry of Education, Dalian 116024, China |
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Abstract In the present study, dielectric barrier homogenous discharge in nitrogen was obtained between large plate electrodes (150×300 mm) at atmospheric pressure and the emission spectra of N2(C3Πu→B3Πg) and N+2(B2Σ+u→X2Σ+g 0-0 391.4 nm) were recorded. It was found that both the emission intensities of N2(C3Πu→B3Πg) and N+2(B2Σ+u→X2Σ+g 0-0 391.4 nm) increase with the rising of the applied voltage and the driving frequency, respectively. The main physicochemical formation mechanism of N+2(B2Σ+u) in N2 and He+N2 mixtures homogenous discharge was discussed, and the penning ionization was proved to be the dominant formation mechanism.
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Received: 2010-12-19
Accepted: 2011-03-11
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Corresponding Authors:
WANG Wen-chun
E-mail: wangwenc@dlut.edu.cn
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