Open Access Conference Proceedings

Abstract: Our recent attempts to apply standard molecular simulation techniques to the process of electrospinning are presented. We employ a molecular dynamics simulation to study phenomena involved in the electrospinning of polymer solutions, with particular attention to the formation of the Taylor cone and the development of a liquid jet. [..] Read more

Abstract: Diamond films are attractive materials for electronics, optics and medical applications. For these applications diamond film quality and controllable surface composition are often crucial parameters. [..] Read more

Abstract: In this work, metalloporphyrin-containing coordination polymer particles (Z-CPPs) with 1D nanorod structures were synthesized by a surfactant-assisted self-assembly process. Furthermore, the identification of Z-CPPs in aqueous solution was achieved by surface-enhanced Raman scattering (SERS) through surface metallization. [..] Read more

Abstract: This work is a contribution to our previous research in which we dealt with the influence of different preparation methods on fundamental properties of ZnO nanoparticles. Our current research was focused on the formation of oxygen vacancies in ZnO nanoparticles, especially by the UV radiation-assisted precipitation. [..] Read more

Abstract: Anodic alumina in both of its forms – a barrier type and a porous type – has received numerous studies and practical applications. Its potential could be further increased with the recent development of aluminium thin film sputter-deposition technologies. [..] Read more

Abstract: Silicon nanowires (Si NWs) were grown from Si wafer upon thermal annealing in the presence of catalytic gold layer. The Si substrate coated with 100 nm thick Au sputtered layer was thermally annealed at 1000 °C for 60 min in argon and hydrogen atmosphere at 8 kPa. [..] Read more

Abstract: Montmorillonite was found to be useful matrix for the direct preparation of graphene sheets from conducting polyaniline in the interlayer space of montmorillonite. Oxidative polymerization of the solution of anilinium sulfate by ammonium peroxydisulfate in the presence of montmorillonite particles led to the formation of polyaniline chains both on the surface (revealed by SEM analysis) and in the interlayer space of montmorillonite (proved by a combination of X-ray diffraction analysis and molecular modeling). [..] Read more

Abstract: Mechanical/physical properties are the most important parameters that determine the ease with which silica powders can be handled, stored, transported and processed. Because of silica powders have wide range of its application from pharmaceutical industry, printer toners and electronic parts to application in cancer treatment. [..] Read more

Abstract: Electrically conductive composites with polymeric matrix (CPCs) and carbon based filler are the promising group of synthetic materials combining excellent mechanical properties of nonconductive matrix and electrical properties of conductive filler. These materials find application in many fields of interests such as an electromagnetic interference shielding, electro-optical devices, electrostatic discharge or signal transfer used in aerospace, marine, and automotive industries. [..] Read more

Abstract: This paper examines the mechanical properties of the composite of thermoplastic polymer matrix with carbon nanotubes. As the basic polymer matrix was used acrylonitrile butadiene styrene (ABS) to which were added the nanoparticles in a given percentage by weight in the form of nanotubes. [..] Read more

Abstract: We studied the influence of the diamond deposition on the degradation of Schottky gate electrodes (i.e. Ir or IrO2) and on the electrical characteristics of AlGaN/GaN high electron mobility transistors (HEMTs). [..] Read more

Abstract: We report photoluminescence properties of hydrothermally grown ZnO nanorods (NRs) before and after hydrogen peroxide (H2O2) treatment. The H2O2 treatment introduces oxygen related defects and thus enhances chemisorption processes in ZnO NRs. [..] Read more

Abstract: The article describes the influence of an unconventional forming method, such as DRECE, on the resulting mechanical properties and structure of tested materials. In the laboratories of the Technical university of Ostrava we have prototype equipment DRECE for production of very fine grained or nanostructured materials in the form of metal strips. [..] Read more

Abstract: Polymer composite nanofibers are formed from a polymer with inorganic nanoparticles. We deal with parameter combinations of nanoparticles, polymers, and solvents for the following electrospinning. [..] Read more

Abstract: Platinum is a transition metal known for its catalytic properties, which are further enhanced when employed in a nanoparticle form. We have recently shown that a monolayer of Pt nanoparticles deposited on semiconductor substrates forms high quality Schottky diodes, which were used in sensitive hydrogen sensors with a detection limit of 1 ppm of H2 in N2. [..] Read more

Abstract: It is well known that carbon-based materials have large variance in hardness. There are several methods for modifying the properties and improving the hardness of carbon-based layers. [..] Read more

Abstract: Thinning fossil fuel deposits and increasing emphasis on ecological aspects of human activity call for new technology solutions. Energy industry and electronics industry search for novel materials and power sources. [..] Read more

Abstract: We report here on the preparation and characterization of polycrystalline boron doped diamond (BDD) thin films grown on structured silicon substrates using hot filament chemical vapor deposition (HFCVD) method. The BDD layers were grown in CH4 / H2 gas mixture with trimethylboron (TMB) addition. [..] Read more

Abstract: A new type of polystyrene (PS)/carbon nanotube (CNT) network laminate is introduced as an electrically conductive composite material; with favorable properties as electro-mechanical signal transducer capable to detect applied mechanical strain. In course of its fabrication a non-woven polystyrene membrane made by electro spinning was used as filtering mesh for CNT aqueous dispersion. [..] Read more

Abstract: Iron (II) oxalate dihydrate was investigated as a possible candidate for the preparation of elongated magnetic particles. In order to prepare 1-dimensional nanostructures with high aspect ratio, three kinds of synthesis were employed for the preparation of this precursor. [..] Read more