Low-pressure DC breakdown in alcohol vapours

Jelena Sivoš; Dragana  Marić; Gordana Malović; Zoran Petrovic

doi:10.1140/epjd/e2020-100540-3

Low-pressure DC breakdown in alcohol vapours

Jelena Sivoš, Dragana Marić, Gordana Malović, Zoran Petrovic

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Abstract: The results covered in this paper provide breakdown data represented by Paschen curves for methanol, isopropanol and n-butanol, along with the corresponding axial profiles of emission in Townsend regime of the discharge and including the optical emission spectra. Paschen curves were recorded in the range of pd (pressure x electrode gap) from 0.10 to 3.00 Torr cm. The optical emission spectra (OES) are recorded for wavelength range from 300 to 900 nm, for discharges in all studied alcohols. The recorded spectra enabled identification of species that participate in these discharges. All three alcohols exhibit emission from excited radicals OH (at 306.4 nm), CH (at 431.2 nm) and Hα (at 656.4 nm) produced mostly in dissociative excitation by electrons. Recorded profiles of emission enabled us to identify conditions where processes induced by heavy particles (ions and fast neutrals) are dominant in inducing emission from the discharge. Graphical abstract: [Figure not available: see fulltext.]

Original language	English
Article number	64
Number of pages	10
Journal	European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics
Volume	74
Issue number	4
DOIs	https://doi.org/10.1140/epjd/e2020-100540-3
Publication status	Published (in print/issue) - 1 Apr 2020

Keywords

Breakdown
gas discharges
water vapour

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10.1140/epjd/e2020-100540-3

Cite this

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title = "Low-pressure DC breakdown in alcohol vapours",

abstract = "Abstract: The results covered in this paper provide breakdown data represented by Paschen curves for methanol, isopropanol and n-butanol, along with the corresponding axial profiles of emission in Townsend regime of the discharge and including the optical emission spectra. Paschen curves were recorded in the range of pd (pressure x electrode gap) from 0.10 to 3.00 Torr cm. The optical emission spectra (OES) are recorded for wavelength range from 300 to 900 nm, for discharges in all studied alcohols. The recorded spectra enabled identification of species that participate in these discharges. All three alcohols exhibit emission from excited radicals OH (at 306.4 nm), CH (at 431.2 nm) and Hα (at 656.4 nm) produced mostly in dissociative excitation by electrons. Recorded profiles of emission enabled us to identify conditions where processes induced by heavy particles (ions and fast neutrals) are dominant in inducing emission from the discharge. Graphical abstract: [Figure not available: see fulltext.]",

keywords = "Breakdown, gas discharges, water vapour",

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doi = "10.1140/epjd/e2020-100540-3",

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T1 - Low-pressure DC breakdown in alcohol vapours

AU - Sivoš, Jelena

AU - Marić, Dragana

AU - Malović, Gordana

AU - Petrovic, Zoran

PY - 2020/4/1

Y1 - 2020/4/1

N2 - Abstract: The results covered in this paper provide breakdown data represented by Paschen curves for methanol, isopropanol and n-butanol, along with the corresponding axial profiles of emission in Townsend regime of the discharge and including the optical emission spectra. Paschen curves were recorded in the range of pd (pressure x electrode gap) from 0.10 to 3.00 Torr cm. The optical emission spectra (OES) are recorded for wavelength range from 300 to 900 nm, for discharges in all studied alcohols. The recorded spectra enabled identification of species that participate in these discharges. All three alcohols exhibit emission from excited radicals OH (at 306.4 nm), CH (at 431.2 nm) and Hα (at 656.4 nm) produced mostly in dissociative excitation by electrons. Recorded profiles of emission enabled us to identify conditions where processes induced by heavy particles (ions and fast neutrals) are dominant in inducing emission from the discharge. Graphical abstract: [Figure not available: see fulltext.]

AB - Abstract: The results covered in this paper provide breakdown data represented by Paschen curves for methanol, isopropanol and n-butanol, along with the corresponding axial profiles of emission in Townsend regime of the discharge and including the optical emission spectra. Paschen curves were recorded in the range of pd (pressure x electrode gap) from 0.10 to 3.00 Torr cm. The optical emission spectra (OES) are recorded for wavelength range from 300 to 900 nm, for discharges in all studied alcohols. The recorded spectra enabled identification of species that participate in these discharges. All three alcohols exhibit emission from excited radicals OH (at 306.4 nm), CH (at 431.2 nm) and Hα (at 656.4 nm) produced mostly in dissociative excitation by electrons. Recorded profiles of emission enabled us to identify conditions where processes induced by heavy particles (ions and fast neutrals) are dominant in inducing emission from the discharge. Graphical abstract: [Figure not available: see fulltext.]

KW - Breakdown

KW - gas discharges

KW - water vapour

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DO - 10.1140/epjd/e2020-100540-3

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VL - 74

JO - European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics

JF - European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics

IS - 4

M1 - 64

ER -

Low-pressure DC breakdown in alcohol vapours

Abstract

Keywords

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