Materials Literature
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The uniquely low friction behavior of near-frictionless carbon (NFC) as compared to conventional diamondlike carbon (DLC) is determined by the bonding within the film. Inelastic neutron scattering (INS) and Fourier transform infrared (FTIR) spectroscopy were used to probe the bonding environment of carbon and hydrogen…
Safe and reliable operation is still one of the major challenges in the development of the new generation of ITER-like fusion reactors. The deposited plasma energy during major disruptions, edge-localized modes (ELMs) and vertical displacement events (VDEs) causes significant surface erosion, possible structural failu…
The search for multifunctional materials as multiferroics to be applied in microelectronic or for new, chemically stable and nontoxic, thermoelectric materials to recover waste heat is showing a common interest in the oxides whose structures contain a triangular network of transition-metal cations. To illustrate this…
A general strategy for realizing the self-assembly of aqueous CdTe nanocrystals (NCs) at the water/oil interface by means of an amphiphilic core-shell hyperbranched polymer has been proposed. Aqueous CdTe NCs were firstly transferred into the chloroform phase in the presence of palmityl chloride functionalized hyperbr…
Three-dimensional normal grain growth process was simulated in scale of 300×300×300 on the basis of Monte Carlo–Potts model to study topology-dependent growth rate equations for individual grains. The results show that those growth rate equations solely dependent on the grain face number (f) are not applicable for gra…
Abstract Um die klinischen Anwendungsmöglichkeiten der Kernspintomographie (MRI) zu verbessern, wird intensiv nach effizienteren Kontrastmitteln gesucht. Dazu müssen die Koordinationschemie von Gadolinium(III) und die Parameter, die seine Wirksamkeit als Protonenrelaxationsagens beeinflussen, berücksichtigt werden. Wi…
Refractory oxide melts of the binary system MgO-Al 2 O 3 have been studied by molecular dynamics simulation using an advanced ionic interaction model derived from first-principles. The simulations reproduce well experimental densities, structure factors, and transport properties. Anomalous behavior of the latter was o…
The optical properties of heavily boron-doped nanocrystalline diamond films grown by microwave plasma enhanced chemical vapor deposition on silicon substrates are presented. The diamond films are characterized by spectroscopic ellipsometry within the midinfrared, visible, and near-ultraviolet regions. The ellipsometri…
The role of oxide substrate with respect to ${\text{O}}_{2}$ adsorption induced changes in the Raman spectra of individual metallic carbon nanotubes is examined. A chiral metallic nanotube suspended over a trench exhibits a relatively simple two-peak $G$-band feature with no observable $D$-band intensity. On the other…
Single-crystal CdTe nanorods with diameters of 50-100 nm were synthesized under a surfactant-assisted hydrothermal condition. The experimental results indicated that with a temporal dependence the morphologies of CdTe nanocrystallites changed from nanoparticles to smooth surface nanorods. The crystal structure, morpho…
Fehlende Spezies gefunden: Zwei Isopolyoxowolframat-Cluster mit neuartigen „S“-förmigen [H4W22O74]12−- bzw. „§“-förmigen [H10W34O116]18−-Geometrien werden vorgestellt. Diese komplexen Strukturen resultieren aus einer auf dem {W11}-Fragment basierenden Strukturentwicklung und bieten sich als neue Baueinheiten in der Is…
The Bragg peaks in x-ray diffraction experiments are generally taken to be a reliable measure of the average lattice distance in crystals. We show that this assumption can be misleading when determining hydrogen-induced volume changes. Experiments based on simultaneous determination of the position of the Bragg peak a…
Abstract Isotactic polypropylene (PP) has been reactively blended with various grades of an ethylene–octene copolymer (EOC) in a twin‐screw extruder. Free radical polymerization of styrene and a multifunctional acrylate during melt extrusion has resulted in an enhancement of mechanical properties over the binary blend…
We have directly grown single-walled carbon nanotubes on epitaxial BaTiO3 thin films, fabricating prototype carbon nanotube-ferroelectric devices. We demonstrate polarization switching using the nanotube as a local electric field source and compare the results to switching with an atomic force microscopy tip. The obse…
Nanostructured titanium dioxide (TiO(2)) porous films and nanotube arrays were prepared by atomic layer deposition (ALD) on porous anodic alumina (PAA) templates. The nanostructures were characterized by FESEM and XRD to investigate the structural and crystallographic characteristics. They were then evaluated as self-…
Intrinsic zinc oxide (i-ZnO) and aluminium-doped ZnO (ZnO:Al) are components of high-efficiency copper indium gallium diselenide solar cells. This paper examines both of these materials grown by two different techniques, namely radio frequency sputtering and electrodeposition (ED) for comparison and a better understan…
Abstract Multiphase polymer composites of carbon black (CB), polypropylene (PP) and low density polyethylene (LDPE) were prepared by melt‐mixing method to reduce the amount of CB in the conductive composites. SEM images showed that CB preferably located in LDPE phase and formed electrically conductive path. The measur…
An extensive study of the single-step replication of form-birefringent quarter-wave plates is presented. Using rigorous diffraction theory, the fabrication parameters and tolerances are carefully studied in order to obtain ideal conditions for successful replication. The design considerations are then applied to fabri…
Abstract A Hemoglobin‐CdTe‐CaCO 3 @polyelectrolyte 3D architecture is synthesized by a stepwise layer‐by‐layer method and is further used to fabricate an electrochemistry biosensor. While the calcium carbonate (CaCO 3 ) microsphere acts as an effective host for the loading of cadmium telluride (CdTe) quantum dots due…
Towards a nanostructured thermoelectric generator using ion-track lithography, Koukharenko, E, Li, X, Nandhakumar, I, Frety, N, Beeby, S P, Cox, D, Tudor, M J, Schiedt, B, Trautmann, C, Bertsch, A, White, N M