2017
Wide-pressure-range coplanar dielectric barrier discharge: Operational characterisation of a versatile plasma source
ČECH, Jan, Zdeněk BONAVENTURA, Pavel SŤAHEL, Miroslav ZEMÁNEK, Hana DVOŘÁKOVÁ et. al.Základní údaje
Originální název
Wide-pressure-range coplanar dielectric barrier discharge: Operational characterisation of a versatile plasma source
Autoři
ČECH, Jan (203 Česká republika, garant, domácí), Zdeněk BONAVENTURA (203 Česká republika, domácí), Pavel SŤAHEL (203 Česká republika, domácí), Miroslav ZEMÁNEK (203 Česká republika, domácí), Hana DVOŘÁKOVÁ (203 Česká republika, domácí) a Mirko ČERNÁK (703 Slovensko, domácí)
Vydání
Physics of Plasmas, MELVILLE, AMER INST PHYSICS, 2017, 1070-664X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10305 Fluids and plasma physics
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 1.941
Kód RIV
RIV/00216224:14310/17:00094621
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000395395100076
Klíčová slova anglicky
dielectric barrier discharge; coplanar; wide pressure range; low pressure; paschen; iccd
Změněno: 13. 4. 2018 09:30, Ing. Nicole Zrilić
Anotace
V originále
Many plasma applications could benefit from the versatile plasma source operable at a wide-pressure-range, e.g., from the fraction of Pa to the super-atmospheric conditions. In this paper, the basic characteristics of wide-pressure-range plasma source based on the coplanar dielectric barrier discharge is given. The operational characteristics of this plasma source were measured in nitrogen at pressures ranging from 10^1Pa (resp. 10^-4Pa) to 10^5Pa. Measurements of the plasma geometry, breakdown voltage, and micro-discharges' behaviour revealed three operational regimes of this plasma source: "high pressure," "transitional" and "low-pressure" with vague boundaries at the pressures of approx. 10 kPa and 1 kPa. It was found that the plasma layer of coplanar dielectric barrier discharge could be expanded up to several centimetres to the half-space above the planar dielectric barrier when the gas pressure is reduced below 1 kPa, which provides an outstanding space to tailor the source for the specific applications. The proposed model of an effective gap distance in the Paschen breakdown criterion enabled us to explain the discharge behaviour fitting the experimental breakdown voltage data in the whole studied pressure range. Under the filament-forming conditions, i.e., at the pressure range from approx. 1-100 kPa, the active plasma volume could be varied through the micro-discharges' lateral thickness scaling with the inverse of the square-root of the gas pressure.
Návaznosti
ED2.1.00/03.0086, projekt VaV |
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GA13-24635S, projekt VaV |
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LO1411, projekt VaV |
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