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Optical emission spectroscopy characterization of oxygen plasma during treatment of a PET foil (CROSBI ID 124365)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Krstulović, Nikša ; Labazan, Irena ; Milošević, Slobodan ; Cvelbar, Uroš ; Vesel, Alenka ; Mozetič, Miran Optical emission spectroscopy characterization of oxygen plasma during treatment of a PET foil // Journal of physics. D, Applied physics, 39 (2006), 17; 3799-3804-x

Podaci o odgovornosti

Krstulović, Nikša ; Labazan, Irena ; Milošević, Slobodan ; Cvelbar, Uroš ; Vesel, Alenka ; Mozetič, Miran

engleski

Optical emission spectroscopy characterization of oxygen plasma during treatment of a PET foil

Optical emission spectroscopy (OES) analysis of inductively coupled RF oxygen plasma during plasma treatment of a 23  m thick polyethylene terephthalate (PET) foil is presented. Plasma was generated in pure oxygen at the pressure of 75 Pa with a RF generator at the frequency of 27.12 MHz and the output power of 300 W. The electron temperature was about 6 eV, the density of charged particles about 1016 m-3 and the density of neutral O atoms about 1022 m-3. Spectra were measured in the range from 250 to 950 nm by means of an optical spectrometer. For the first 10 seconds of plasma treatment the OES showed the presence of oxygen radicals only. Later, the OES spectra became richer with significant emission from CO and OH, which was attributed to PET oxidation. Simultaneously, the O peaks decreased significantly. After prolonged plasma treatment, the O peaks recovered, the CO band vanished while the OH and H peaks still persisted. In the final period of the treatment only atomic oxygen lines remained. The results showed that OES analysis was a powerful method for studying the evolution of PET oxidation by plasma treatment.

plasma; oxygen; optical emission spectroscopy; PET; XPS

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Podaci o izdanju

39 (17)

2006.

3799-3804-x

objavljeno

0022-3727

Povezanost rada

Fizika

Poveznice
Indeksiranost