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Etching of polyethylene terephthalate thin films by neutral oxygen atoms in the late flowing afterglow of oxygen plasmaVesel, Alenka ...Films of polyethylene terephthalate were deposited on quartz crystals and exposed to oxygen atoms to study their etching characteristics and quantify the etching rate. Oxygen (O) atoms were created ... by passing molecular oxygen through plasma created in a microwave discharge. The discharge power was fixedat 250 W, while the pressure of oxygen was 50 Pa. Before exposure to oxygen atoms, a thin polymer film of polyethylene terephthalate (PET) was deposited uniformly over a crystal with a diameter of 12 mm. The crystal was mounted on a quartz crystal microbalance to accurately determine the thickness of the polymer film. The polymer film was exposed to O atoms in the flowing afterglow. The density of O atoms was measured with a cobalt catalytic probe mounted next to the sample and was determined to be 1.2?*?1021m-3. Samples were treated with O atoms for different periods of up to 120 min. The thickness of the film decreased linearly with treatment time. After 90 min of treatment, a 65-nm-thick polymer film was completely removed. Therefore, the etching rate was 0.5 nm/min, so the interaction probability between an O atom and an atom in the sample was extremely low, just 1.4?*10-6. Samples treated for different periods were investigated by atomic force microscopy and X-ray photoelectron spectroscopy to examine the etching characteristics of O atoms in the flowing afterglow.Source: Surface and interface analysis. - ISSN 0142-2421 (Vol. 44, iss. 13, 2012, str. 1565-1571)Type of material - article, component partPublish date - 2012Language - englishCOBISS.SI-ID - 16102166
Author
Vesel, Alenka |
Kolar, Metod |
Doliška, Aleš |
Stana-Kleinschek, Karin |
Mozetič, Miran, 1961-
Topics
polimeri |
jedkanje |
kisikova plazma |
pozno porazelektritveno območje |
kremenova mikrotehtnica |
mikroskopija na atomsko silo |
rentgenska fotoelektronska spektroskopija |
polymer |
etching |
oxygen plasma |
late afterglow |
quartz crystal microbalance |
atomic force microscopy |
X-ray photoelectron spectroscopy
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Vesel, Alenka | 20048 |
Kolar, Metod | 33585 |
Doliška, Aleš | 17577 |
Stana-Kleinschek, Karin | 07814 |
Mozetič, Miran, 1961- | 10429 |
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