Materials Literature
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Using the rich polymorphism of ZnX (X: S, Se, Te) compounds, we show how local pressures can be unequivocally determined from i) first-principles total energy calculations, and ii) atomic volumes derived by means of topological analysis of crystalline electron densities. An analogy between atoms and mechanical resisto…
The effect of fluid axial thermal conduction on one-dimensional liquid metal natural circulation and its linear stability was performed through nondimensional analysis, steady-state assessment, and linear perturbation evaluation. The Nyquist criterion and a root-search method were employed to find the linear stability…
In extreme-ultraviolet (EUV) lithography, defect-free mask production is one of the critical issues for the high-volume manufacturing of semiconductor devices. We developed a coherent EUV scatterometry microscope (CSM), which is a simple lensless system. The CSM records diffraction from mask patterns with a charge-cou…
In order to enhance understanding of the short circuit improvement in InAs/GaAs quantum dot (QD) solar cells, the thermally assisted and tunneling mechanisms of carrier escape from the QD quantum confinement are investigated. The dependence of voltage biased spectral responsivity for QD solar cells at room temperature…
We explore a new approach to calculating explicit solutions of linear-quadratic MPC problems with strictly convex cost. The central idea is to calculate the vertices of the state space polytopes, and to construct the pieces of the piecewise affine control law from only the vertices. We show that information calculated…
The structure of the hafnium dioxide films grown during pulsed laser sputtering of an Hf target in an oxygen atmosphere is examined, and the phase transformations that occur in them at annealing are studied by transmission electron microscopy and electron diffraction. Amorphous, tetragonal, orthorhombic, and monoclini…
Linear response and low frequency noise have been investigated in MgO double barrier magnetic tunnel junctions with a superparamagnetic Co50Fe50 free layer. Linear and hysteresis-free switching was observed for the Co50Fe50 thickness t ≤ 1 nm. A tunneling magnetoresistance ratio of up to 108% and large magnetic field…
A transition metal chelate unstable at a high oxidation state, diperiodatocuprate (III) (K₅[Cu(HIO₆)₂], DPC), was synthesized and applied in the luminol-based chemiluminescence (CL) system for highly sensitive CE end-column detection of dopamine (DA). This method was based on the fact that DA enhanced the CL emission…
Protein phosphorylation is a common posttranslational modification, and involved in many cellular processes. Like endogenous peptides, endogenous phosphopeptides contain many biomarkers of preclinical screening and disease diagnosis. In this work, titanium-containing magnetic mesoporous silica spheres were synthesized…
Silica/lignin biocomposites were obtained by a new method proposed and fully characterised. Silica was precipitated from aqueous solution of sodium silicate (as an SiO2 precursor) and sulphuric acid (as a precipitating agent). The support obtained was subjected to surface functionalisation with aminosilane and then mo…
Keratin has been extracted from wool using ammonium thioglycolate under nitrogen atmosphere and then used for treating wool fabric in the presence of epichlorohydrin as a cross-linking agent. The treated fabrics are then dyed with acid and reactive dyes at various temperatures. Complete exhaustion of these dyes on the…
Dissolved gas in oil analysis (DGA) has been used for many years successfully for diagnosis and condition monitoring of mineral oil filled transformers. Due to the usage of alternative dielectric liquids, for example natural and synthetic esters, it is necessary to investigate if and how this diagnostic method can be…
The properties of hydrogels, in particular their high biocompatibility and water sorption uptake, make hydrogels very attractive in drug delivery and biomedical devices. These favorable features of hydrogels are compromised by certain structural limitations such as those associated with their low mechanical strength i…
We report on 14 nm lateral resolution in tip-enhanced Raman spectroscopy mapping of carbon nanotubes with an experimental setup that has been designed for the analysis of opaque samples in confocal side-access through a novel piezo-driven objective scanner. The objective scanner allows for fast and stable laser-to-tip…
Waterborne polyurethane (WPU) dispersion was synthesized with isocyanic acid, m-TMXDI-based anionic poly(urethane-urea). WPU/AC hybrid emulsions were prepared by the emulsion polymerization of a mixture of AC monomers (styrene, methyl methacrylate and butyl acrylate) in the presence of WPU dispersion. The structures o…
In this work, a general equation of state (EOS) recently derived by Grzybowski et al. [Phys. Rev. E 83, 041505 (2011)] is applied to 51 molecular and ionic liquids in order to perform density scaling of pVT data employing the scaling exponent γ(EOS). It is found that the scaling is excellent in most cases examined. γ(…
This paper discusses the design and fabrication of ion-implanted, high-efficiency, light-stable, 156 mm square, screen-printed solar cells on n-type Czochralski (Cz) silicon with full industrial processing. Doping by ion implantation provides a significant advantage over conventional furnace-based doping by providing…
The controlled nucleation and propagation of magnetic domain walls in ultrathin ferromagnetic wires, such as nanowires and submicrometer wires, is extremely important for the development of new high performance magnetic domain wall logic devices. Therefore, it is equally essential to possess adequate advanced experime…
The theoretical relationship between surface energies and adhesion are briefly reviewed. Surface energies obtained from contact angles measurements can be extremely useful but difficult to obtain in manufacturing and field environments. A novel technique for probing surface energies via liquid drops, created using bal…
Nanofluids are kinds of fluids engineered by dispersing nanoparticles in base fluids, a new challenge for thermal sciences provided by nanotechnology. Due to their excellent characteristics, nanofluids find wide applications in enhancing heat transfer. This paper presents synthesis and characterization of TiO2-CNTs na…