Open Access Conference Proceedings

Abstract: Copper (Cu) is a biogenic element that plays an important role in many biological processes. Cu is also used in various industrial products and its nanosized form has antibacterial and antiviral properties. [..] Read more

Abstract: This study investigated the stabilization of cadmium sulfide (CdS) nanoparticles in aqueous solutions of the triblock copolymer Pluronic P123. The concentration of the added cadmium sulfide varied between 0.002 and 0.02 M. [..] Read more

Abstract: In this study, the effect of severe plastic deformation on grain size refinement and mechanical properties of a coarse-grained steel was investigated. The experimental material used in the present investigation was advanced tungsten modified 9%Cr P92 steel. [..] Read more

Abstract: Graphene based nanomaterials produced by liquid exfoliation techniques and microwave plasma decomposition of ethanol were studied by scanning electron microscopy (SEM), Raman spectroscopy and X-Ray powder diffraction (XRD). Graphene oxide (GO) and reduced graphene oxide (r-GO) prepared by liquid exfoliation technique consisted of several types of structures - thin flakes with thickness of 10-15 nm and lateral dimensions of several micrometers and graphite like structures, 100 μm in size, with not fully exfoliated graphene layers. [..] Read more

Abstract: Boron-doped diamond exhibits a characteristic S-shaped I-V curve at room temperature [1] with two electrical conductivity states, i.e., low and high conductivity, at high electric fields (50 – 250 kVcm-1) due to the carrier freeze-out and impurity impact ionization avalanche effect. To our knowledge, the carrier multiplication during the change of the conductivity state has not been studied. [..] Read more

Abstract: Silicon nitride find its application in quality of high-temperature ceramics and can be considered as one of the most promising dielectrics. Different properties and microstructure of pressureless sintered silicon nitride have been described a lot. [..] Read more

Abstract: The environmental contamination by heavy metals is one of the global problems that disturb the ecological balance. A platform for the simultaneous electrochemical detection of trace heavy metal ions has been developed based on the gold nanoparticles-cysteine-multiwall carbon nanotubes (AuNPs-Cys-MWCNTs) modified carbon paste electrode using square wave anodic stripping voltammetry. [..] Read more

Abstract: We report on the properties of Eu-doped ZnO nanorods prepared by chemical bath deposition from aqueous solutions in an autoclave. The autoclave enables to grow the nanorods above the boiling point of water. [..] Read more

Abstract: The method of carbon nanotubes (CNT) addition to a friction stir welded dissimilar joint has been developed. The CNT agglomerates are produced in shape of paper sheets. [..] Read more

Abstract: Graphene is unarguably very promising material for countless applications including also gas sensing. For this particular application, it is very beneficial to understand the nature and strength of interaction of graphene with the adsorbed molecules. [..] Read more

Abstract: The effect of the resonance overlapping of pseudoisocyanine J aggregates exciton and plasmon of the inhomogeneous ensemble of metallic nanoparticles was studied for thin films. The absorption of a hybrid structure was not the sum of the absorption of the cyanine dye layer and nanoparticle extinction. [..] Read more

Abstract: Iron oxides, especially the Fe3O4 and γ-Fe2O3 phases, play a significant role in potential applications of nanomaterials due to their suitable features such as biocompatibility, magnetic and optoelectronic properties. Moreover, it is convenient to use Fe3O4 for some applications, such as Li-ion batteries, because of its combined valence states of iron. [..] Read more

Abstract: We have developed the technology of the deposition of the nominally undoped ZnO nanocrystalline thin films by DC reactive magnetron sputtering of Zn target in the gas mixture of argon and oxygen plasma. We have optimized the photoluminescence spectroscopy for measuring optically scattering thin layers with the high sensitivity, precise sample positioning and very low influence of the scattered excitation light. [..] Read more

Abstract: We use the formerly derived explicit analytical expressions for the conductivity of nanostructured superconductors supercooled below the critical temperature in electric field. Computer simulations reveal that the negative differential conductivity region of the current-voltage characteristic leads to excitation of electric oscillations. [..] Read more

Abstract: The hydrogenated amorphous silicon layers (a-Si:H) were deposited by PECVD method on quartz substrates. During interruption of PECVD process the vacuum chamber was pumped up to 10-5 Pa and 1 nm thin films of Germanium or Tin were evaporated on the surface. [..] Read more

Abstract: Pavement structures often fail due to insufficient interphase interaction between bituminous binder and mineral aggregate. A thin bituminous film covering aggregate particles is often replaced by water, resulting in bitumen-water-aggregate system, which is firmly linked to adhesion failure between these materials. [..] Read more

Abstract: In recent years atomic layer deposition has proved to be a successful method of fabrication and modification of electrodes for lithium-ion batteries and thin film power sources. Tin oxide demonstrated considerable excellence over currently used materials for thin film batteries anodes, however, lithiated tin oxides are expected to show even better performance. [..] Read more

Abstract: This study is focused on preparation of pristine zinc sulphide (ZnS) and zinc sulphide/kaolinite (ZnS/K) nanocomposite using one-pot hydrothermal synthesis under atmospheric pressure and without any surfactant. Together with finding a simple preparation method, the aim was to achieve a high photocatalytic activity, and also reduce the environmental risk of ZnS (in the case of ZnS/K). [..] Read more

Abstract: The surface of the polyester nonwoven fabric was covered with a layer of silver and copper-based nanoparticles obtained from their salts and reduced using tannic acid. Polyester nonwoven MILIFE® without surface modification was used as a carrier of the metallic layer. [..] Read more

Abstract: The type, number, and magnitude of environmental constraints are currently undergoing changes due to shifts in climate patterns already observed for the past and predicted for the future. These changes are already affecting grape composition with observed changes in sugar and acidity concentrations. [..] Read more