Comparison Between Conventional and Transferred DBD Plasma Jets for Processing of PDMS Surfaces

Nascimento, Fellype do; Machida, Munemasa; Canesqui, M. A.; Moshkalev, Stanislav A.

doi:10.1109/tps.2017.2655266

Cited by 15 publications

(13 citation statements)

References 48 publications

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“…Although it is known that both T rot and T vib contribute synergistically during the surface treatment process, studies relating chemical reactions between gases and surfaces have shown that the impact of T vib on surface treatment using plasma jets should be more significant than the impact of T rot. [18,19] This statement was verified in a work on the treatment of poly(dimethylsiloxane) (PDMS) surfaces for adhesion between treated samples, with adhesion being more efficient for higher T vib values [20] …”

Section: Introductionmentioning

confidence: 84%

“…Energy level diagram for molecular nitrogen, with references to the energies of He(2 3 S), Ar( 3 P 2 , 3 P 0 ), and Ar + ( 3 P 3/2 ) states (figure adapted from [20] )…”

Section: Theoretical Backgroundmentioning

confidence: 99%

“…[18,19] This statement was verified in a work on the treatment of poly(dimethylsiloxane) (PDMS) surfaces for adhesion between treated samples, with adhesion being more efficient for higher T vib values. [20] In this work, we analyse two ways to control the vibrational temperature of the DBD plasma. One is by reducing the exit size of the DBD reactor or, in other words, putting a smaller amount of the plasma generated inside the reactor in contact with the surrounding air.…”

Section: Introductionmentioning

confidence: 99%

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The role of vibrational temperature variations in a pulsed dielectric barrier discharge plasma device

Nascimento

Moshkalev

Machida

2020

Contributions to Plasma Physics

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The use of dielectric barrier discharge (DBD) plasmas has become a practical way to carry out surface treatment where precise control of the plasma parameters, such as rotational and vibrational temperatures (T rot and T vib), is required. As the T vib of an atmospheric pressure plasma jet appears to be the most important parameter related to the improvement of surface treatments, in this work, we analysed two methods to increase the values of T vib in a DBD plasma jet device. One of the methods is to reduce the exit size (ø) of the DBD reactor, which results in an increase in the measured T vib values, due to an increase in the pressure inside the reactor. The other method is to change the gas flow rate (GFR) used to produce the plasma jets. This leads to a T vib reduction when the GFR is increased in the case of using helium or nitrogen as the working gas, but the opposite happens (an increase in the T vib values) when argon is used, with different phenomena causing the variation of T vib in each situation.

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Section: Introductionmentioning

confidence: 84%

“…Energy level diagram for molecular nitrogen, with references to the energies of He(2 3 S), Ar( 3 P 2 , 3 P 0 ), and Ar + ( 3 P 3/2 ) states (figure adapted from [20] )…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The role of vibrational temperature variations in a pulsed dielectric barrier discharge plasma device

Nascimento

Moshkalev

Machida

2020

Contributions to Plasma Physics

Self Cite

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“…The increment in the T vib values is a good result since a recent study [31] has indicated that plasmas with higher values of T vib keeping about the same T rot could be better to perform surface treatment of materials, improving their wettability and reducing the treatment time needed to achieve the desired results.…”

Section: Optical Characterizationmentioning

confidence: 96%

Enhanced energy transfer efficiency in a four-electrodes configuration DBD plasma jet

et al. 2017

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In this work a dielectric barrier discharge (DBD) plasma jet that uses a multiple electrodes configuration is investigated. The results show that both plasma power and its rotational and vibrational temperatures tend to increase with the number of powered electrodes in the DBD device. The emission intensities of the excited species in the plasma, and consequently their number density, also grow as a function of the number of powered electrodes. Based on these facts and since the electric power provided by the power supply was kept constant, there is an indication that the use of multiple electrodes improves the energy efficiency of the device.

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“…Ozone technologies have seen wide application in various fields, such as agriculture, sterilization [1][2][3], water purification [4][5][6], portable air cleaners [7,8], and surface cleaning [9,10]. In ozone technology applications, signals with both high-voltage and high-frequency features must be generated to achieve proper electrical discharge in the ozone chip.…”

Section: Introductionmentioning

confidence: 99%

Design of a Modified-Bridge Circuit with a Master-Slave Input Supply Mechanism for Ozone-Driven System Applications

et al. 2022

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This study proposes a design of a modified-bridge circuit with a master–slave input supply mechanism for ozone-driven system applications. Because the single-source supply design is becoming the mainstream choice in the existing ozone-driven systems, the input supply reliability of the ozone-driven system is crucial. Therefore, this proposed design involves a modified-bridge circuit combined with inductors and transistors, which can be augmented with the energy storage device as a backup source to improve the reliability of the input supply for the ozone-driven system. In addition, considering that the original source directly connected to DC BUS can re-charge the energy storage device, the energy recycling operation mode is designed in this proposed system to extend the duration of the energy storage device, which improves the supply reliability of the ozone-driven system further. To validate this proposed system, both model formulation and hardware realization are assessed through different test scenarios. Experimental outcomes of these tests confirm the practicality of the proposed design.

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Comparison Between Conventional and Transferred DBD Plasma Jets for Processing of PDMS Surfaces

Cited by 15 publications

References 48 publications

The role of vibrational temperature variations in a pulsed dielectric barrier discharge plasma device

The role of vibrational temperature variations in a pulsed dielectric barrier discharge plasma device

Enhanced energy transfer efficiency in a four-electrodes configuration DBD plasma jet

Design of a Modified-Bridge Circuit with a Master-Slave Input Supply Mechanism for Ozone-Driven System Applications

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