Exploring the mechanisms leading to diffuse and filamentary modes in dielectric barrier discharges in N2 with N2O admixtures - DatasetThe effects of nitrous oxide (N2O) in nitrogen (N2) on the development and morphology of sine-driven dielectric barrier discharges in a single-filament arrangement were studied. Detailed insight in the characteristics of the discharge and its development were obtained from electrical measurements combined with ICCD and streak camera recordings as well as numerical modelling. A miniaturised atmospheric pressure Townsend discharge (APTD) could be generated for admixtures up to 5vol% N2O in N2 although N2O is an efficient collisional quencher of metastable nitrogen molecules. Increasing the high voltage amplitude led to a transition into a hybrid mode with the generation of an intermediate filament in addition to the diffuse, non-constricted APTD. A time-dependent, spatially one-dimensional fluid model was applied in order to study the underlying mechanisms causing the diffuse discharge characteristics. The dataset contains the data shown in the corresponding publication.

]]>APTDbasic researchmode transitionPlasma Chemical Processes656b254e-2a2b-4236-877c-714bd71627f72022-11-11T13:25:28+01:002023-03-02T18:19:50+01:00enINP, LAPLACEExploring the mechanisms leading to diffuse and filamentary modes - Fig. 5 (neg. half cycle)Axial intensity profiles along the gap axis in dependence on the gas composition at 12.6 kV_pp for the negative half cycle.

]]>2023-02-06T22:43:24+01:002023-02-07T12:47:38+01:00text/csvcsv42288https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-0Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 5 (pos. half cycle)Axial intensity profiles along the gap axis in dependence on the gas composition at 12.6 kV_pp for the positive half cycle.

]]>2023-02-06T22:44:17+01:002023-02-07T12:47:38+01:00text/csvcsv41762https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-1Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 6 (U and I)Measured voltage waveform and the corresponding total current (averaged over 1000 HV periods) for one period, 12.6 kV_pp and virtually pure N2.

]]>2023-02-06T22:45:55+01:002023-02-07T12:47:38+01:00text/csvcsv3947983https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-2Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 7Applied voltage waveform for 14 kV_pp and corresponding measured currents for virtually pure N2 and 1vol% N2O in N2.

]]>2023-02-06T22:47:32+01:002023-02-07T12:47:38+01:00text/csvcsv44854848https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-3Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 8 (U and I)Measured voltage waveform at 14.0 kV_pp and the corresponding total current (averaged over 1000 HV periods) in virtually pure N2 and with 1 vol% admixture of N2O in N2.

]]>2023-02-06T22:48:20+01:002023-02-07T12:49:11+01:00text/csvcsv7206592https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-4Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 10Discharge current for the filamentary case as a function of the N2O concentration for 14 kV_pp. The data are averaged over 1000 individual filaments (triggered on the current, i.e. not synchronised with the applied HV).

]]>2023-02-06T22:49:06+01:002023-02-07T12:47:38+01:00text/csvcsv113262https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-5Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 11Dissipated charge per filamentary discharge for different gas compositions.

]]>2023-02-06T22:49:34+01:002023-02-07T12:47:38+01:00text/csvcsv126https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-6Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 14 (U)Measured voltage waveform at 14.0 kV_pp (averaged over 1000 HV periods).

]]>2023-02-06T22:50:18+01:002023-02-07T12:48:41+01:00text/csvcsv3533926https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-7Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 14aTemporally resolved emission profiles for APTD cycles with different gas compositions. The data was derived from the spatial average over the discharge gap in the streak images at 14.0 kV_pp.

]]>2023-02-06T22:50:50+01:002023-02-07T12:47:38+01:00text/csvcsv18670https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-8Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 14bTemporally resolved emission profiles from hybrid cycles with a filament in the negative half cycle compared with the APTD cycles for pure N2. The data was derived from the spatial average over the discharge gap in the streak images at 14.0 kV_pp.

]]>2023-02-06T22:51:19+01:002023-02-07T12:47:38+01:00text/csvcsv14235https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-9Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 14cTemporally resolved emission profiles from hybrid cycles with a filament in the negative half cycle compared with the APTD cycles for 2vol% N2O in N2. The data was derived from the spatial average over the discharge gap in the streak images at 14.0 kV_pp.

]]>2023-02-06T22:51:49+01:002023-02-07T12:47:38+01:00text/csvcsv14139https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-10Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 15Modelling results for applied voltage, gap voltage, current density, spatially averaged density of electrons, spatially averaged density of N2(C) and spatially averaged rates of dominant gain and loss processes for electrons and N2(C) molecules as a function of time. Sinusoidal-operated DBD with 12.6 kV_pp at 10 kHz and 0.1 vol% N2O in N2.

]]>2023-02-07T12:43:13+01:002023-02-07T12:47:38+01:00text/csvcsv3980532https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-11Exploring the mechanisms leading to diffuse and filamentary modes - Fig. 16Modelling results for spatially averaged densities and dominant gain/loss rates of N(2P), O and N2(A) as a function of time. Sinusoidal-operated DBD with 12.6 kV_pp at 10 kHz and 0.1 vol% N2O in N2.

]]>2023-02-07T12:46:06+01:002023-02-07T12:47:38+01:00text/csvcsv3920716https://www.inptdat.de/dataset/exploring-mechanisms-leading-diffuse-and-filamentary-modes-dielectric-barrier-discharges-12DKANhttps://www.inptdat.de