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Approximately 500-nm-thick oxide films formed on the surface of AISI 316L stainless steel samples upon brief exposure to oxygen plasma that was created by microwave discharge at approximately 500W nominal power. During plasma treatment, the samples were simultaneously heated by concentrated solar radiation such that the temperature increased almost linearly to approximately 1100K, after which the...
Three independent methods show clear evidence that pentacene layers grown on parylene C layer had better molecular microstructure compared to films grown on SiO2 surface. The electrical measurements confirmed these results and carrier mobility of 0.15 cm2 /Vs was obtained in OFET devices.
Inductively coupled oxygen plasma was used to study degradation of Escherichia coli. Bacteria were deposited on a silicon wafer substrate and treated by plasma for different periods. The effect of oxygen plasma ions and neutral oxygen atoms was observed by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The first effect was removal of the envelope - a protective coating bacteria...
This study investigates the changes in morphology and wettability of amorphous and semicrystalline polyethyleneterephthalate (PET) polymers, which were treated in weakly ionized, highly dissociated RF oxygen plasma. The polymers were treated in glow region for different exposure times with the discharge power set to 250 W and the gas pressure set to 75 Pa. Results indicate that plasma modification...
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