ON THE PLASMA PROPERTIES OF DIFFUSE COPLANAR SURFACE BARRIER
DISCHARGE IN HUMID NITROGEN AND HUMID AIR STUDIED BY OPTICAL
EMISSION SPECTROSCOPY

D 2009

ON THE PLASMA PROPERTIES OF DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE IN HUMID NITROGEN AND HUMID AIR STUDIED BY OPTICAL EMISSION SPECTROSCOPY

ČECH, Jan; Pavel SLAVÍČEK; Pavel SŤAHEL a Mirko ČERNÁK

Základní údaje

Originální název

ON THE PLASMA PROPERTIES OF DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE IN HUMID NITROGEN AND HUMID AIR STUDIED BY OPTICAL EMISSION SPECTROSCOPY

Autoři

ČECH, Jan ; Pavel SLAVÍČEK; Pavel SŤAHEL a Mirko ČERNÁK

Vydání

GHENT, 4th International Workshop on Cold Atmospheric Pressure Plasmas, od s. 5-8, 4 s. 2009

Nakladatel

UNIVERSITEIT GENT

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Belgie

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

tištěná verze "print"

Označené pro přenos do RIV

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000282782900003

Klíčová slova anglicky

coplanar barrier discharge; optical emission spectroscopy; humidity; nitrogen; technical air

Příznaky

Mezinárodní význam

Změněno: 17. 1. 2014 11:46, doc. Mgr. Jan Čech, Ph.D.

Anotace

V originále

In this work we investigated the influence of working gas humidity on the plasma properties of diffuse coplanar surface barrier discharge (DCSBD). As working gases pure nitrogen and technical air admixed with the vapors of distilled water were used. We measured the intensities of second positive system of nitrogen (band 2-0 at 297.7 nm) and integrated emissions of OH (R(1) and R(2) at 306.5 nm), NO-gamma system (band 0-3 at 259 nm) and 0 intensities (at 777.4 nm). The relative humidity of gas was measured and from these measurements the absolute humidity of the gas was estimated. We observed strong dependence of gas humidity on DCSBD behavior. The discharge pattern and emission spectra differs substantially in the case of nitrogen and technical air respectively. In case of nitrogen we observed transition from diffuse-like discharge to sparse-filamentary discharge in higher humidity region and decrease of the OH/N(2) and NO/N(2) intensity ratios. In the case of technical air the discharge remains diffuse for higher value of humidity and then became stable with very dense filamentary pattern. The ratios of OH/N(2) and NO/N(2) intensity are increasing in that case. From the measurements we can conclude that the absolute humidity of working gas plays important role in the DCSBD behavior. Hence the influence of absolute humidity of working gas has to be studied in the case of materials processing applications.

Návaznosti

GD104/09/H080, projekt VaV

Název: Plazmochemické procesy a jejich technologické aplikace

Investor: Grantová agentura ČR, Plazmochemické procesy a jejich technologické aplikace

KAN101630651, projekt VaV

Název: Tvorba nano-vrstev a nano-povlaků na textiliích s využitím plazmových povrchových úprav za atmosférického tlaku

Investor: Akademie věd ČR, Tvorba nano-vrstev a nano-povlaků na textiliích s využitím plazmových povrchových úprav za atmosférického tlaku

MSM0021622411, záměr

Název: Studium a aplikace plazmochemických reakcí v neizotermickém nízkoteplotním plazmatu a jeho interakcí s povrchem pevných látek

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Studium a aplikace plazmochemických reakcí v neizotermickém nízkoteplotním plazmatu a jeho interakcí s povrchem pevných látek

Citovat

ČECH, Jan; Pavel SLAVÍČEK; Pavel SŤAHEL a Mirko ČERNÁK. ON THE PLASMA PROPERTIES OF DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE IN HUMID NITROGEN AND HUMID AIR STUDIED BY OPTICAL EMISSION SPECTROSCOPY. In C. Leys, R. Morent. 4th International Workshop on Cold Atmospheric Pressure Plasmas. GHENT: UNIVERSITEIT GENT, 2009, s. 5-8.

@inproceedings{1159656,
   author = {Čech, Jan and Slavíček, Pavel and Sťahel, Pavel and Černák, Mirko},
   address = {GHENT},
   booktitle = {4th International Workshop on Cold Atmospheric Pressure Plasmas},
   editor = {C. Leys, R. Morent},
   keywords = {coplanar barrier discharge; optical emission spectroscopy; humidity; nitrogen; technical air},
   howpublished = {tištěná verze "print"},
   language = {eng},
   location = {GHENT},
   pages = {5-8},
   publisher = {UNIVERSITEIT GENT},
   title = {ON THE PLASMA PROPERTIES OF DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE IN HUMID NITROGEN AND HUMID AIR STUDIED BY OPTICAL EMISSION SPECTROSCOPY},
   year = {2009}
}

TY  - CONF
ID  - 1159656
AU  - Čech, Jan - Slavíček, Pavel - Sťahel, Pavel - Černák, Mirko
PY  - 2009
TI  - ON THE PLASMA PROPERTIES OF DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE IN HUMID NITROGEN AND HUMID AIR STUDIED BY OPTICAL EMISSION SPECTROSCOPY
PB  - UNIVERSITEIT GENT
CY  - GHENT
KW  - coplanar barrier discharge
KW  - optical emission spectroscopy
KW  - humidity
KW  - nitrogen
KW  - technical air
N2  - In this work we investigated the influence of working gas humidity on the plasma properties of diffuse coplanar surface barrier discharge (DCSBD). As working gases pure nitrogen and technical air admixed with the vapors of distilled water were used. We measured the intensities of second positive system of nitrogen (band 2-0 at 297.7 nm) and integrated emissions of OH (R(1) and R(2) at 306.5 nm), NO-gamma system (band 0-3 at 259 nm) and 0 intensities (at 777.4 nm). The relative humidity of gas was measured and from these measurements the absolute humidity of the gas was estimated. We observed strong dependence of gas humidity on DCSBD behavior. The discharge pattern and emission spectra differs substantially in the case of nitrogen and technical air respectively. In case of nitrogen we observed transition from diffuse-like discharge to sparse-filamentary discharge in higher humidity region and decrease of the OH/N(2) and NO/N(2) intensity ratios. In the case of technical air the discharge remains diffuse for higher value of humidity and then became stable with very dense filamentary pattern. The ratios of OH/N(2) and NO/N(2) intensity are increasing in that case. From the measurements we can conclude that the absolute humidity of working gas plays important role in the DCSBD behavior. Hence the influence of absolute humidity of working gas has to be studied in the case of materials processing applications.
ER  -

ČECH, Jan; Pavel SLAVÍČEK; Pavel SŤAHEL a Mirko ČERNÁK. ON THE PLASMA PROPERTIES OF DIFFUSE COPLANAR SURFACE BARRIER DISCHARGE IN HUMID NITROGEN AND HUMID AIR STUDIED BY OPTICAL EMISSION SPECTROSCOPY. In C. Leys, R. Morent. \textit{4th International Workshop on Cold Atmospheric Pressure Plasmas}. GHENT: UNIVERSITEIT GENT, 2009, s.~5-8.

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