Gas-Temperature-Dependent Characteristics of Cryo-Dielectric Barrier Discharge Plasma under Atmospheric Pressure
Gas-Temperature-Dependent Characteristics of Cryo-Dielectric Barrier Discharge Plasma under Atmospheric Pressure
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DOI：
10.1143/apex.1.046001
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发表时间：
2008-03
影响因子：
2.3
通讯作者：
Y. Noma;J. Choi;S. Stauss;T. Tomai;K. Terashima
中科院分区：
文献类型：
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作者：
Y. Noma;J. Choi;S. Stauss;T. Tomai;K. Terashima
在目前的工作中，低温介质阻挡放电（DBD）等离子体产生连续低于室温下液氮温度（296至78 K）在大气压下使用平行的铟锡氧化物（ITO）涂层电极。对低温介质阻挡放电等离子体进行了气体温度相关发射光谱（OES）测量和放电模式观察。在氦气的情况下，低温DBD等离子体的放电模式从传统模式转变为辉光模式，随着气体温度的降低。当在氦气中引入少量氮气时，随着气体温度的降低，尽管放电模式从同心环（296 K）变为六边形（78 K），但放电模式仍然存在。
In the present work, cryo-dielectric barrier discharge (DBD) plasma was generated continuously below room temperature down to liquid nitrogen temperature (296 to 78 K) under atmospheric pressure using parallel indium–tin-oxide (ITO)-coated electrodes. Gas-temperature-dependent optical emission spectroscopy (OES) measurements and discharge pattern observation of cryo-DBD plasma were performed. In the case of helium gas, the discharge mode of cryo-DBD plasma changed from filamentary mode to glow mode as the gas temperature decreased. When introducing a small amount of nitrogen in helium gas, the filamentary discharge mode persisted upon decreasing the gas temperature, although the discharge pattern changed from concentric rings (296 K) to a hexagon-like pattern (78 K).