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Characterisation of volume and surface dielectric barrier discharges in N2–O2 mixtures using optical emission spectroscopy
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2019-09-23 , DOI: 10.1002/ppap.201900126 Friederike Kogelheide 1 , Björn Offerhaus 1 , Nikita Bibinov 1 , Philip Krajinski 1 , Lars Schücke 1 , Julian Schulze 1, 2 , Katharina Stapelmann 3 , Peter Awakowicz 1
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2019-09-23 , DOI: 10.1002/ppap.201900126 Friederike Kogelheide 1 , Björn Offerhaus 1 , Nikita Bibinov 1 , Philip Krajinski 1 , Lars Schücke 1 , Julian Schulze 1, 2 , Katharina Stapelmann 3 , Peter Awakowicz 1
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A volume and a twin surface dielectric barrier discharge (VDBD and SDBD) are generated in different nitrogen–oxygen mixtures at atmospheric pressure by applying damped sinusoidal voltage waveforms with oscillation periods in the microsecond time scale. Both electrode configurations are located inside vacuum vessels and operated in a controlled atmosphere to exclude the influence of surrounding air. The discharges are characterised with different spatial and temporal resolution by applying absolutely calibrated optical emission spectroscopy in conjunction with numerical simulations and current–voltage measurements. Plasma parameters, namely the electron density and the reduced electric field, and the dissipated power are found to depend strongly on the oxygen content in the working gas mixture. Different spatial and temporal distributions of plasma parameters and dissipated power are explained by surface and residual volume charges for different O2 admixtures due to their effects on the electron recombination rate. Thus, the oxygen admixture is found to strongly influence the breakdown process and plasma conditions of a VDBD and a SDBD.
中文翻译：
使用光发射光谱法表征N2–O2混合物中的体积和表面介电势垒放电
在大气压力下，通过施加具有微秒级的振荡周期的阻尼正弦电压波形，在不同的氮氧混合物中会产生体积和双表面介电势垒放电（VDBD和SDBD）。两种电极配置均位于真空容器内部，并在受控的气氛中运行，以排除周围空气的影响。通过将绝对校准的光发射光谱法与数值模拟和电流-电压测量结合使用，可以以不同的时空分辨率表征放电。发现等离子体参数，即电子密度和减小的电场，以及耗散功率在很大程度上取决于工作气体混合物中的氧含量。2种混合物由于它们对电子复合率的影响。因此，发现氧气混合物强烈影响VDBD和SDBD的分解过程和等离子体条件。
更新日期：2019-09-23
中文翻译：
使用光发射光谱法表征N2–O2混合物中的体积和表面介电势垒放电
在大气压力下，通过施加具有微秒级的振荡周期的阻尼正弦电压波形，在不同的氮氧混合物中会产生体积和双表面介电势垒放电（VDBD和SDBD）。两种电极配置均位于真空容器内部，并在受控的气氛中运行，以排除周围空气的影响。通过将绝对校准的光发射光谱法与数值模拟和电流-电压测量结合使用，可以以不同的时空分辨率表征放电。发现等离子体参数，即电子密度和减小的电场，以及耗散功率在很大程度上取决于工作气体混合物中的氧含量。2种混合物由于它们对电子复合率的影响。因此，发现氧气混合物强烈影响VDBD和SDBD的分解过程和等离子体条件。
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