Bullet-to-streamer transition on the liquid surface of a plasma jet in atmospheric pressure

Yoon, Seok–Jin; Kim, G.-H.; Kim, S.-J.; Bae, Byung Seong; Kim, N.-K.; Lee, H.; Bae, Namjae; Ryu, Seon Young; Yoo, Suk Jae; Kim, S. B.

doi:10.1063/1.4974263

Cited by 8 publications

(6 citation statements)

References 22 publications

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“…In Ref. 278, on the other hand, a change in plasma mechanism was observed when the bullet reached the water surface, which was attributed to the presence of water vapor. As seen in Fig.…”

Section: Plasma-liquid Interaction: Electrical Properties Of Thementioning

confidence: 99%

Plasma physics of liquids—A focused review

Vanraes

Bogaerts

2018

Applied Physics Reviews

173

118

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The interaction of plasma with liquids has led to various established industrial implementations as well as promising applications, including high-voltage switching, chemical analysis, nanomaterial synthesis, and plasma medicine. Along with these numerous accomplishments, the physics of plasma in liquid or in contact with a liquid surface has emerged as a bipartite research field, for which we introduce here the term "plasma physics of liquids." Despite the intensive research investments during the recent decennia, this field is plagued by some controversies and gaps in knowledge, which might restrict further progress. The main difficulties in understanding revolve around the basic mechanisms of plasma initiation in the liquid phase and the electrical interactions at a plasma-liquid interface, which require an interdisciplinary approach. This review aims to provide the wide applied physics community with a general overview of the field, as well as the opportunities for interdisciplinary research on topics, such as nanobubbles and the floating water bridge, and involving the research domains of amorphous semiconductors, solid state physics, thermodynamics, material science, analytical chemistry, electrochemistry, and molecular dynamics simulations. In addition, we provoke awareness of experts in the field on yet underappreciated question marks. Accordingly, a strategy for future experimental and simulation work is proposed.

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“…In Ref. 278, on the other hand, a change in plasma mechanism was observed when the bullet reached the water surface, which was attributed to the presence of water vapor. As seen in Fig.…”

Section: Plasma-liquid Interaction: Electrical Properties Of Thementioning

confidence: 99%

Plasma physics of liquids—A focused review

Vanraes

Bogaerts

2018

Applied Physics Reviews

173

118

View full text Add to dashboard Cite

show abstract

“…In our previous work 8 – 11 , we found the liquid target is also an important factor to determine the characteristics of plasmas. We have focused on the transition of plasma and liquid properties during the long-term over tens of minutes 10 .…”

Section: Introductionmentioning

confidence: 99%

“…The long-term transition of plasma and liquid properties is important in both the understanding of the plasma discharge mechanism and the development of plasma sources for applications. We also studied the transition of the plasma shape from a ring-shaped bullet to a pin-like streamer adjacent to a liquid surface due to the evaporation of the liquid 11 . The difference of ionization energy or the attachment rate of evaporated H 2 O to ambient discharge gas species is also able to change the plasma.…”

Section: Introductionmentioning

confidence: 99%

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Yoon¹,

Jeon²,

Yi³

et al. 2018

Sci Rep

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This study investigated the mutual interaction between the plasma and plasma treated water (PTW). Many works have shown that the plasma treatment decreases the pH of PTW due to nitric oxide electrolyte ion but the interactions between PTW and the plasma are still largely unknown. We investigated the effect of PTW on a plasma as well as the effect of a plasma on PTW using a pin-to-liquid discharge system. It is found that PTW affects not only the chemical properties but also the physical properties of the plasma such as breakdown voltage and concentration of plasma column. The decrease of the liquid surface tension of PTW due to nitric oxide electrolyte ion from the plasma results in the increase of plasma current onto the surface of PTW and vice versa. The feedback process will be continued until the transition from normal discharge to abnormal discharge. These results can be basic data for the development of plasma sources to treat liquids.

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“…LightField ® software (LightField 6.15, Teledyne Princeton Instruments) was used to control the ICCD camera and process the captured images. Theoretically, because the velocity of the streamer discharge may be up to 1000 km s −1 [18,40], the gate-width should be set as shorter as possible to avoid the afterimage, but this may result in the lack of the fluorescence intensity. Further, the electric discharge is highly dynamic and could be different in different shots.…”

Section: Visualizations Of Electric Dischargementioning

confidence: 99%

“…Thus, a single shot may not present a typical discharge in a specific moment. The accumulation of shots could be a solution, but timings of shots to accumulate should be selected to make sure that the accumulation is reasonable [40]. Therefore, this study captured images of the electric discharge of specific timings in a period of the AC power based on signals from the high-voltage probe, which was set as the trigger source.…”

Section: Visualizations Of Electric Dischargementioning

confidence: 99%

DBD-streamer mode transition of atmospheric-pressure plasma jet applied on water with varying distance and AC power

Chiu,

Cheng,

Lua

et al. 2023

Phys. Scr.

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The discharge of atmospheric-pressure plasma jet (APPJ) applied on the water was studied by varying an air gap between a powered electrode and the water, and the alternating current power. It was found that the streamers were converged by the air flow to form a streamer bridge to allow current flow across the air gap to transition from a dielectric barrier discharge (DBD) mode to a streamer mode. Because the AC power alternates periodically, this study proposed an analysis without the parameter of time by the voltage amplitude to power characteristic. It was found that the longer distance required higher voltage amplitude and power to transition. Prior research of plasma rarely mentioned the real power and the reactive power, which are essential for electric devices. Because different discharge mode produces different species, this study proposed a simple method to analyze and predict discharge modes based on the power factor, which presents the relationship of the real power and the reactive power. It was found that the streamer mode had a higher power factor than the DBD mode, and thus the power factor decides the discharge mode. Therefore, a power factor analysis can be a systematic basis to produce the required discharge by changing the equivalent capacitance and resistance to change the reactive power and real power. This study proposed a simple method to analyze periodic discharge by the intensified charge-coupled device (ICCD). A period of the AC was divided into twelve timings. For each timing, each shot was configured to have the minimum exposure time to avoid the afterimage. Thousands of shots were overlapped into one snapshot to increase the fluorescence and make such snapshot more representative for the timing. Snapshots show that the streamer bridge was only formed in specific timings periodically.

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Bullet-to-streamer transition on the liquid surface of a plasma jet in atmospheric pressure

Cited by 8 publications

References 22 publications

Plasma physics of liquids—A focused review

Plasma physics of liquids—A focused review

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

DBD-streamer mode transition of atmospheric-pressure plasma jet applied on water with varying distance and AC power

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