Electrical and optical emission measurements of a capillary dielectric barrier discharge

Mahoney, J.; Zhu, Weidong; Johnson, Valencia S.; Becker, K.; López, José L.

doi:10.1140/epjd/e2010-00236-y

Cited by 28 publications

(13 citation statements)

References 21 publications

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“…The emission intensity was normalized with the intensity at 380.5 nm. As expected with other atmospheric air non‐equilibrium discharge, N 2 peaks were dominant in the emission spectra . The major spectra came from the second positive system (SPS) of N 2 (C 3 П u →B 3 П g ) and the first negative system (FNS) of

{normalN}_{2}^{+} true(B^{2} \sum_{u}^{+} \to X^{2} \sum_{g}^{+} true)

).…”

Section: Results and Analysissupporting

confidence: 76%

“…As expected with other atmospheric air nonequilibrium discharge, N 2 peaks were dominant in the emission spectra. [36][37][38] The major spectra came from the second positive system (SPS) of N 2 (C 3 П u →B 3 П g ) and the first negative system…”

Section: Plasma Diagnosismentioning

confidence: 99%

“…This is because of that quenching process and radiation process coexist in the depopulation of O( 3 P) and O( 5 P), but the quenching rate is two orders of magnitude faster than radiative decay rate. [37,38] The typical parameters such as N 2 (C 3 П u ) rotational temperature (T rot ), N 2 (C 3 П u ) vibrational temperature (T vib ), electron temperature (T e ) are important parameters to evaluate the plasma characteristics. The emission spectra of the second positive bands of N 2 (C 3 П u →B 3 П g ) can be used to determine the N 2 (C 3 П u ) rotational temperature (T rot ) of the SDBD plasma by fitting the experimental spectra with the simulated ones using Specair software.…”

Section: Plasma Diagnosismentioning

confidence: 99%

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Characterization of surface dielectric barrier discharge (SDBD) based on PI/Al₂O₃ nanocomposite

Bian

Jia

2018

Plasma Processes & Polymers

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Surface dielectric barrier discharge (SDBD) is widely applied in the field of active flow control. Its carrier is usually called plasma actuator (PA). However, it has a key drawback of short discharge lifetime due to the dielectric degradation under plasma processing. In this paper, polyimide (PI) film incorporated with Al2O3 nanoparticles is fabricated and used as dielectric of PA. Dielectric material, plasma, surface temperature, discharge characteristics as well as its performance are experimentally studied and compared with those of a conventional pure PI based control actuator. The results show that at sine peak to peak voltage of 8 kV and 6 kHz frequency, the force efficiency of new designed actuator is 2.5 times higher than that of the control actuator after 30 h discharge. Besides, the discharge lifetime is also 3.2 times as long. In the discharge region, the surface of the control actuator appears serious dielectric degradation, which is accompanied by heat accumulation as well as an increase of gas temperature and electron temperature. While for the new actuator, after selective plasma etching, the inorganic Al2O3 nanoparticles can continuously resist the discharge plasma and contributes to effective heat dissipation and more stable plasma parameters.

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{normalN}_{2}^{+} true(B^{2} \sum_{u}^{+} \to X^{2} \sum_{g}^{+} true)

).…”

Section: Results and Analysissupporting

confidence: 76%

Section: Plasma Diagnosismentioning

confidence: 99%

Section: Plasma Diagnosismentioning

confidence: 99%

See 1 more Smart Citation

Characterization of surface dielectric barrier discharge (SDBD) based on PI/Al₂O₃ nanocomposite

Bian

Jia

2018

Plasma Processes & Polymers

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“…Various types of so‐claimed bio‐compatible plasma devices were developed around the world, which could roughly be classified into two categories: (i) dielectric barrier discharge (DBD) based devices which involve at least one electrode covered by some kind of dielectric material and are typically powered by AC, rf or pulsed DC power. They can be a single jet1–3 or jet arrays,4 co‐planar5 or grating6 in appearance, depending on the arrangement of the electrodes, dielectric barriers, and gas delivery system. (ii) Miniaturized discharges which involve bare electrodes and at least one dimension confined to micrometer range.…”

Section: Introductionmentioning

confidence: 99%

Reactive Oxygen Species in a Non‐thermal Plasma Microjet and Water System: Generation, Conversion, and Contributions to Bacteria Inactivation—An Analysis by Electron Spin Resonance Spectroscopy

Sun

Feng

et al. 2012

Plasma Processes & Polymers

156

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Hydroxyl radical (•OH) and singlet oxygen (1O2) were detected by electron spin resonance (ESR) spectroscopy in a direct current He/O2 (2%) non‐thermal plasma microjet‐water system. ${}^{ \bullet }{\rm O}_{{\rm 2}}^{- } $ is shown to be the precursor of •OH. The concentrations of 1O2 and •OH are evaluated to be around 6 × 10−4 and 1.2 × 10−5 M, respectively. The survival rates of S. aureus exposed to plasma for 20 s in 1 ml H2O, SOD (100 U, for scavenging ${}^{ \bullet }{\rm O}_{{\rm 2}}^{- } $), D‐Man (0.15 M, for scavenging •OH), and L‐His (0.15 M, for scavenging •OH and 1O2) solutions were 0.7, 1.6, 13.4, and 40.9%, respectively, indicating that 1O2 contributes the most to the inactivation.

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“…More recently, Mahoney et al [48] reported studies of the electrical and spectral properties of a CPE discharge using three different geometries. The electrical characterization included current-voltage curves and charge-voltage Lissajous figures, which provided information of the capacitance of the plasma reactors.…”

Section: A Capillary Plasma Electrode Dischargementioning

confidence: 99%

Robert Barker Memorial Session: Leadership in Plasma Science and Applications

Becker

Godfrey

Kunhardt

et al. 2015

IEEE Trans. Plasma Sci.

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This paper summarizes the Dr. Robert J. Barker memorial session at the IEEE International Conference on Plasma Science 2014. Each section summarizes progress in a plasma research area strongly influenced by Dr. Barker's leadership: 1) plasma medicine; 2) atmospheric-pressure plasmas; 3) high-power microwaves; 4) pulsed power; and 5) numerical simulation of plasmas. He had a profound influence on these and other plasma science applications, as well as on numerous individual researchers. He will be missed greatly.Index Terms-Atmospheric-pressure plasmas, high-power microwaves (HPMs), plasma medicine, plasma simulation, pulsed power.

show abstract

Electrical and optical emission measurements of a capillary dielectric barrier discharge

Cited by 28 publications

References 21 publications

Characterization of surface dielectric barrier discharge (SDBD) based on PI/Al₂O₃ nanocomposite

Characterization of surface dielectric barrier discharge (SDBD) based on PI/Al₂O₃ nanocomposite

Reactive Oxygen Species in a Non‐thermal Plasma Microjet and Water System: Generation, Conversion, and Contributions to Bacteria Inactivation—An Analysis by Electron Spin Resonance Spectroscopy

Robert Barker Memorial Session: Leadership in Plasma Science and Applications

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Electrical and optical emission measurements of a capillary dielectric barrier discharge

Cited by 28 publications

References 21 publications

Characterization of surface dielectric barrier discharge (SDBD) based on PI/Al2O3 nanocomposite

Characterization of surface dielectric barrier discharge (SDBD) based on PI/Al2O3 nanocomposite

Reactive Oxygen Species in a Non‐thermal Plasma Microjet and Water System: Generation, Conversion, and Contributions to Bacteria Inactivation—An Analysis by Electron Spin Resonance Spectroscopy

Robert Barker Memorial Session: Leadership in Plasma Science and Applications

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Product

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Characterization of surface dielectric barrier discharge (SDBD) based on PI/Al₂O₃ nanocomposite

Characterization of surface dielectric barrier discharge (SDBD) based on PI/Al₂O₃ nanocomposite