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Optical emission spectroscopy of oxygen low-pressure inductively coupled plasma loaded by ethanol, methanol and acetone vapours (CROSBI ID 532790)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa

Glavan, Nataša ; Krstulović, Nikša ; Milošević, Slobodan Optical emission spectroscopy of oxygen low-pressure inductively coupled plasma loaded by ethanol, methanol and acetone vapours // Abstract Booklet, 16th International Colloquium on Plasma Processes / Legeay, Gilbert (ur.). Toulouse: Societe Francaise du Vide, 2007. str. 115-115-x

Podaci o odgovornosti

Glavan, Nataša ; Krstulović, Nikša ; Milošević, Slobodan

engleski

Optical emission spectroscopy of oxygen low-pressure inductively coupled plasma loaded by ethanol, methanol and acetone vapours

Low-pressure inductively coupled oxygen plasma was loaded by ethanol (C2H5OH), methanol (CH3OH) or acetone (C3H5OH) vapours and characterized by means of optical emission spectroscopy. Plasma was generated by inductively coupled RF generator (RIZ SW-amp.) with the frequency of 13.56 MHz and adjustable output power up to 300 W. The plasma was maintained in a glass discharge tube with the inner diameter of 3.6 cm. The discharge tube was pumped with a rotary pump. Vapors were introduced into plasma region through glass capillary tube connected to temperature stabilized liquid container through precise Teflon valve. Partial pressures in the tube were measured by a Baratron gauge. Plasma radiation was measured with CCD Ocean Optics spectrometers (UV- VIS-CGI or LIBS2000+). Emission from highly excited species was found in the ultraviolet, visible and infrared part of the spectra from 200 to 1000 nm. The rich emission spectra were dominated by molecular spectra of CO (3rd positive band and Angstrom band) and OH (A-X band) radicals. Atomic transition lines from hydrogen (H , H ) and oxygen O(3p5P  3s5S), and O(4p3P  3s3S) were observed as well. By observing spectral line intensity ratios, relative abundance of OH, CO, H and O radicals was studied versus oxygen/vapor pressure ratio and discharge power. Optimum conditions for production of various radicals are discussed in terms of vapors characteristics and possible dissociation and recombination mechanisms.

oxygen plasma; methane; acetone; ethanol; optical emission spectroscopy

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Podaci o prilogu

115-115-x.

2007.

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objavljeno

978-2-9527742-2-2

Podaci o matičnoj publikaciji

Abstract Booklet, 16th International Colloquium on Plasma Processes

Legeay, Gilbert

Toulouse: Societe Francaise du Vide

Podaci o skupu

16th International Colloquium on Plasma Processes

poster

04.06.2007-08.06.2007

Toulouse, Francuska

Povezanost rada

Fizika