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A simple dielectric barrier discharge device for generating slot homogeneous plasma in atmospheric pressure air

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5 Author(s)
Lifang Dong ; College of Physics Science and Technology, Hebei University, Baoding 071002, People''s Republic of China ; Zhang, Yanzhao ; Weiyuan Liu ; Yang, Li
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We report a simple dielectric barrier discharge device for generating slot homogeneous plasma in atmospheric pressure air. It consists of two parallel water electrodes with a distance adjusting micrometer. With increasing the applied voltage, the discharge becomes homogeneous. The electron temperature, vibrational temperature (TV) of N2, and rotational temperature (TR) of N2+ are estimated by optical emission spectroscopy. Both TV and TR remain unchanged along the slot in the homogeneous discharge regime. The trend of the TV with respect to the applied voltage is opposite from that of TR, while the electron temperature keeps constant with the increasing applied voltage.

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Applied Physics Letters  (Volume:94 ,  Issue: 9 )