- ItemVacuum Deposited Diphenyl-Diketo-Pyrrolopyrroles Structures with Photoelectrical Application(IOP Publishing Ltd, 2014-05-15) Georgiev, Yavor; Zhivkov, Ivaylo; Angelov, George; Takov, Tihomir; Přikryl, Radek; Stříteský, Stanislav; Vrchotová, Jana; Weiter, MartinITO|composite|Al structures with active DPP-C60 composite films (ratio 60:40 mass %) of about 100 nm thicknesses were prepared. The surface morphology of the films was studied by SEM imaging, which revealed uniform films containing separate spherical structures. It was found that the optimized preparation of the structures under the aforementioned conditions leads to an improvement of their photoelectrical properties.
- ItemProtective Properties of a Microstructure Composed of Barrier Nanostructured Organics and SiOx Layers Deposited on a Polymer Matrix(MDPI, 2018-08-31) Přikryl, Radek; Otřísal, Pavel; Obšel, Vladimír; Švorc, Ľubomír; Karkalić, Radovan; Buk, JanThe SiOx barrier nanocoatings have been prepared on selected polymer matrices to increase their resistance against permeation of toxic substances. The aim has been to find out whether the method of vacuum plasma deposition of SiOx barrier nanocoatings on a polyethylene terephthalate (PET) foil used by Aluminium Company of Canada (ALCAN) company (ALCAN Packaging Kreuzlingen AG (SA/Ltd., Kreuzlingen, Switzerland) within the production of CERAMIS® packaging materials with barrier properties can also be used to increase the resistance of foils from other polymers against the permeation of organic solvents and other toxic liquids. The scanning electron microscopy (SEM) microstructure of SiOx nanocoatings prepared by thermal deposition from SiO in vacuum by the Plasma Assisted Physical Vapour Deposition (PA-PVD) method or vacuum deposition of hexamethyldisiloxane (HMDSO) by the Plasma-enhanced chemical vapour deposition (PECVD) method have been studied. The microstructure and behavior of samples when exposed to a liquid test substance in relation to the barrier properties is described.