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Huran J.,Boháček P.,Sasinková V.,Kleinová A.,Mikolášek M.,Kobzev A.P. 한국물리학회 2022 Current Applied Physics Vol.34 No.-
Photoelectrochemical water splitting devices require semiconductor photoelectrode material fulfilling a number of primary requirements such as band gap, band edge alignment and corrosion resistance to electrolyte. Amorphous silicon carbide films, undoped and doped (P or B), were deposited on Si substrates by PECVD technology. The concentration of elements in the films was determined by RBS and ERD analytical method. Raman spectroscopy study of the SiC films were performed by using a Raman microscope and chemical compositions were analyzed by FTIR, before and after immersion of samples to aqueous pH 2.0 and pH 1.0 sulphuric acid electrolyte. Electrical properties of SiC films before and after immersion of samples to aqueous pH 2.0 and pH 1.0 sulphuric acid electrolyte were studied by measurement of the I–V characteristics on structure Al/SiC/Si/ Al. Differences between Raman spectra, FTIR spectra and I–V characteristics before and after immersion to electrolyte are discussed.
Z. Špitalský,D. Rástočná Illová,O. Žigo,M. Mičušík,Z. Nógellová,M. Procházka,A. Kleinová,M. Kováčová,I. Novák 한국섬유공학회 2019 Fibers and polymers Vol.20 No.8
Polyester (PES) fabrics were pre-treated with atmospheric discharge plasma, and the surface properties, chemicalcomposition, and physical changes on the surfaces of the PES fabrics were investigated. The hydrophobic recovery of theplasma-modified surface during aging of the PES fabrics treated with plasma was also investigated. The glycerin contactangles were determined along with the chemical composition changes in the PES fabric using X-ray photoelectronspectroscopy, Fourier-transform infrared spectroscopy, and iodometric analyses. The physical changes in the topography androughness of the plasma-modified PES were studied using scanning electron microscopy and nanoindentation. The relationbetween the hydrophilicity and hydroperoxide concentration on the surface of the plasma-treated PES fabrics was analyzedand the antibacterial behavior of the fabrics with respect to selected two bacterial strains was monitored.