title: [Optical diagnosis of large area homogenous dielectric barrier discharge in nitrogen at atmospheric pressure].
abstract: In the present study, dielectric barrier homogenous discharge in nitrogen was obtained between large plate electrodes (150 x 300 mm) at atmospheric pressure and the emission spectra of N2 (C3pi(u) --> B3 pi(g)) and N2+ (B2 sigma(u)+ --> X2 sigma(g)+ 0-0 391.4 nm) were recorded. It was found that both the emission intensities of N2 (C3 pi(u) --> B3 pi(g) and N2+ (B2 sigma(u)+ --> X2 sigma(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 N2+ (B2 sigma(u)+) in N2 and He+N2 mixtures homogenous discharge was discussed, and the penning ionization was proved to be the dominant formation mechanism.
authors.affiliation: Key Lab of Materials Modification, Dalian University of Technology, Ministry of Education, Dalian 116024, China. jiali@dlut.edu.cn
authors.forename: Li
authors.initials: L
authors.lastname: Jia
authors.forename: Xu-Wen
authors.initials: XW
authors.lastname: Peng
authors.forename: De-Zheng
authors.initials: DZ
authors.lastname: Yang
authors.forename: Wen-Chun
authors.initials: WC
authors.lastname: Wang
authors.forename: Shu
authors.initials: S
authors.lastname: Zheng