LIU Ying, DONG Li-fang, NIU Xue-jiao. Study on Dot-line Square Superlattice Luminous Pattern in Dielectric Barrier Discharge[J]. Chinese Journal of Luminescence, 2014,35(10): 1210-1214
LIU Ying, DONG Li-fang, NIU Xue-jiao. Study on Dot-line Square Superlattice Luminous Pattern in Dielectric Barrier Discharge[J]. Chinese Journal of Luminescence, 2014,35(10): 1210-1214 DOI: 10.3788/fgxb20143510.1210.
Study on Dot-line Square Superlattice Luminous Pattern in Dielectric Barrier Discharge
The spatio-temporal structures and plasma parameters of the dot-line square superlattice luminous pattern are investigated by using photomultiplier and spectrograph. Optical signals from the discharge filaments show that the dot-line square superlattice pattern is an interleaving of four different transient sub-lattices
three of them occur at the rising edge and one of them at the falling edge in each half voltage-cycle. And the discharge sequence is followed as the small-dot square sub-lattice
the big-dot line sub-lattice
big-dot halo sublattice and the small-dot square sub-lattice located in the center of each big-dot. The emission spectra of the N
2
second positive band (
C
3
u
B
3
g
) are collected and used to calculate the molecular vibration temperatures of the four transient sub-lattices in this pattern. Measurements show that different sub-lattices almost have the same molecular vibration temperature. The influence of the wall charge distribution on the formation process and the spatio-temporal dynamics of the dot-line square superlattice pattern are discussed. It is found that wall charges deposited on the dielectric surface have a great influence on discharge process.
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