The regulation of memory effect and its influence on discharge properties of a dielectric barrier discharge driven by bipolar pulse at atmospheric-pressure nitrogen

Fan, Rui; Wang, Yaogong; Zhang, Xiaoning; Tu, Zhentao; Zhang, Jun

doi:10.1088/2058-6272/ac0da5

Cited by 8 publications

(9 citation statements)

References 50 publications

(57 reference statements)

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“…In fact, most features of DBD operation, from ignition to reproducibility, uniformity and jittering, rely on the general idea of memory effects. These can be present in the gas phase volume 16 – 18 or on the dielectric surfaces 19 . In the recent work by Fan et al 19 , a “wall voltage” in between repetitive discharges has been indirectly measured through a series of reference capacitors as a surface charging memory effect.…”

Section: Introductionmentioning

confidence: 99%

“…These can be present in the gas phase volume 16 – 18 or on the dielectric surfaces 19 . In the recent work by Fan et al 19 , a “wall voltage” in between repetitive discharges has been indirectly measured through a series of reference capacitors as a surface charging memory effect. In this work, we demonstrate and quantify a surface charging memory effect for the first time, by both directly measuring and simulating the spatial distribution of electric field inside a dielectric target impinged by pulsed plasma jets of different polarities.…”

Section: Introductionmentioning

confidence: 99%

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Quantification of surface charging memory effect in ionization wave dynamics

Viegas

Slikboer

Bonaventura

et al. 2022

Sci Rep

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The dynamics of ionization waves (IWs) in atmospheric pressure discharges is fundamentally determined by the electric polarity (positive or negative) at which they are generated and by the presence of memory effects, i.e. leftover charges and reactive species that influence subsequent IWs. This work examines and compares positive and negative IWs in pulsed plasma jets (1 $$\upmu $$ μ s on-time), showing the difference in their nature and the different resulting interaction with a dielectric BSO target. For the first time, it is shown that a surface charging memory effect is produced, i.e. that a significant amount of surface charges and electric field remain in the target in between discharge pulses (200 $$\upmu $$ μ s off-time). This memory effect directly impacts IW dynamics and is especially important when using negative electric polarity. The results suggest that the remainder of surface charges is due to the lack of charged particles in the plasma near the target, which avoids a full neutralization of the target. This demonstration and the quantification of the memory effect are possible for the first time by using an unique approach, assessing the electric field inside a dielectric material through the combination of an advanced experimental technique called Mueller polarimetry and state-of-the-art numerical simulations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantification of surface charging memory effect in ionization wave dynamics

Viegas

Slikboer

Bonaventura

et al. 2022

Sci Rep

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“…The coefficient a is the inverse of the capacitances C t and C p , and V g is close to zero when the discharge is extinguished [41]. In the case of other researchers who used the same method to obtain V d , the coefficient a was calculated using the voltage distribution law while accounting for the measured capacitance, as shown in equation ( 7) [42,43]. Finally, the air gap voltage can be obtained using equation (8).…”

Section: Discharge Characteristicsmentioning

confidence: 99%

“…Figures 7(a), (c) and (e) present graphs showing the Lissajous curve and capacitance under the standard application conditions of 15 kV, 20 kHz, and 20%, when the other two conditions are fixed and only one electrical condition is altered. Figures 7(b), (d) and (f) present graphs showing the power consumption, charge, and wall voltage calculated from figures 7(a), (c) and (e) using equations ( 13)-( 17) [36,42,43,51]. Figure 7(a) shows the characteristics of the Lissajous curve as a function of applied voltage.…”

Section: Discharge Characteristicsmentioning

confidence: 99%

Characteristics of high-repetition-rate bipolar pulse DBD under various electrical conditions in atmospheric-pressure air

Kim,

Yun,

Kim

2023

J. Phys. D: Appl. Phys.

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Numerous studies have been conducted on pulse dielectric barrier discharge (DBD) because it can produce powerful discharges uniformly at atmospheric pressure with a fast rise time. Although much research has been conducted on pulse DBD below 10 kHz, relatively little has been conducted on pulse DBD at high pulse repetition rates (PRRs). Therefore, in this study, the ozone generation and discharge characteristics of bipolar pulse DBD in atmospheric-pressure air at a high PRR of 10 kHz or above were investigated. According to the results of this study, with the exception of electron temperature, most discharge characteristics need for practical applications—like transfer charge, electron density, and discharge uniformity—improved as the voltage and duty ratio increased at high PRR. On the contrary, increasing the PRR exhibited trade-off features like low electron temperature, low discharge uniformity, and a high number of discharges per unit time. Ozone generation demonstrated good results at high voltage, appropriate PRR, and low duty ratio, but applying suitable electrical conditions is crucial considering ozone generation speed and power consumption. The findings of this study will be very beneficial for high-PRR pulse DBD applications that require quick and effective processing. Additionally, they will be useful for researching the characteristics of pulse DBD at high PRR.

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“…As reviewed and studied in detail by [7,8] charges trapped at a dielectric surface due to its exposure to atmospheric pressure, DBD plasma can influence the discharge regime in a very significant and complex way. As discussed in detail, for example, [9,10], the trapped charge significantly affects the subsequent DBD microdischarges by the so-called memory effect: when the voltage reverses the next microdischarge preferentially seek locations where the trapped charges deposited by the previous microdischarge are adding their own electric fields to the external electric field.…”

Section: Introductionmentioning

confidence: 99%

Complex characterisation of Cr-doped α-Al 2O3 for DBD applications

Svandova,

Pazderka,

Pribyl

et al. 2024

J. Phys. D: Appl. Phys.

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Al2O3 samples doped with Cr2O3 up to 10 vol.% (12.7 wt%) were investigated with respect to their electrical, structural and morphological properties relevant to their use as a dielectric barrier in dielectric barrier discharges (DBDs). The surface properties were analyzed using atomic force microscopy (AFM) and a scanning electron microscope (SEM). The structural properties were investigated using X-ray diffraction analysis (XRD). Regarding electrical properties, we measured the dielectric constant of the material, the discharge ignition voltage in coplanar configuration in air as well as in nitrogen, and the working domains (WD) of atmospheric pressure Townsend discharge (APTD). The charge-trapping properties of the studied samples were measured by an electrostatic voltmeter. There was observed a significant ignition voltage decrease with maximal decrease for sample dopped with 1 vol.% Cr2O3. For the samples doped with 10 vol.% of Cr2O3 a rapid surface potential decay was observed that is important from the viewpoint of DBDs plasma filamentation due to the so-called surface memory effect. The WDs of the APTD showed a variations and it has been significantly extended for 5Cr sample up to at least 24 kHz compared to other samples. Thus, results presented in this paper show potential of Cr-dopped dielectric barriers and points towards future research directions.

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The regulation of memory effect and its influence on discharge properties of a dielectric barrier discharge driven by bipolar pulse at atmospheric-pressure nitrogen

Cited by 8 publications

References 50 publications

Quantification of surface charging memory effect in ionization wave dynamics

Quantification of surface charging memory effect in ionization wave dynamics

Characteristics of high-repetition-rate bipolar pulse DBD under various electrical conditions in atmospheric-pressure air

Complex characterisation of Cr-doped α-Al 2O3 for DBD applications

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