Materials Literature
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The FeTe parent compound for iron‐superconductor chalcogenides was studied applying Mössbauer spectroscopy accompanied by ab initio calculations of electric field gradients at the iron nuclei. Room‐temperature (RT) Mössbauer spectra of single crystals have shown asymmetric doublet structure commonly ascribed to contri…
Structures and electronic properties of rhombohedral [1 1 1] and [1 1 0] bismuth nanowires are calculated with the use of density functional theory. The formation of an energy band gap from quantum confinement is studied and to improve estimates for the band gap the GW approximation is applied. The [1 1 1] oriented na…
Analysis of the Residual Stress in ARMOX 500T Armour Steel and Numerical Study of the Resultant Ballistic Performance M. Saleh, V. Luzin, M.M. Kariem, D. Ruan Abstract. Armour steels and their response to ballistic and blast threats have been dutifully studied in light of increased conflict and advances in protection…
Polystyrene films prepared by radical polymerization can conduct electric current in metal-polymer-metal structures with film thicknesses of up to 20 nanometers. Films of polystyrene and graphene oxide composite with thickness up to 3 micrometers, synthesized in similar conditions have the same electric properties. Th…
Thermoelectric measurements are notoriously challenging. In this work, we outline new thermoelectric characterization methods that are experimentally more straightforward and provide much higher accuracy, reducing error by at least a factor of 2. Specifically, three novel measurement methodologies for thermal conducti…
We investigate the glassy dynamics of glycerol in the confinement of a microemulsion system, which is stable on cooling down to the glass transition of its components. By changing the composition, we vary the viscosity of the matrix, while keeping the confining geometry intact, as is demonstrated by small angle X-ray…
Based on the tight-binding model and dual-probe scanning tunneling microscopy technology, we theoretically investigate the electronic structure and local property in the passivated AA-stacked bilayer armchair-edge graphene nanoribbons (AABLAGNRs). We show that they are highly sensitive to the size of the ribbons, whic…
Bacterial cellulose, synthesized by bacteria, is one of the most highly pure cellulose sources. It has gained a great attention due to its unique properties. With molecular similarity to cellulose derived from plants, bacterial cellulose can be modified based on diverse techniques established for the plant-derived cel…
Electrospinning of composite nanofibers has been attracting great attention as a way of producing functional nanofibers. Composite nanofibers are produced with the incorporation of the additives into the polymer melt/solution before electrospinning process and reported to show many superior properties such as high mod…
The transient optical properties of graphene on a dielectric substrate rely on both the direction of light incidence and anisotropic distribution of excited carriers in graphene. Here, we experimentally and theoretically studied the polarization dependence of transient optical reflection and transmission caused by the…
Wet chemical techniques have been used to synthesize undoped and Mn-doped nanoparticles at room temperature. Highly stable pure and 5.0 weight% Mn-doped ZnO nanoparticles have been prepared. The morphologies, structures and optical properties of the as-prepared samples were characterized by X-ray powder diffraction, s…
Double-layer supercapacitors rely on the high specific surface area (SSA) of activated carbons. Typically, granular-activated carbon held together by polymer binder is used. As a potential alternative, this paper focuses on the potential use of commercially available carbon fiber nonwovens. A commercially available bi…
BACKGROUND: Nano-pharmaceutics have been actively studied for the encapsulation and targeted delivery of drugs to improve the treatment strategies for various diseases. Because of the size, nano-pharmaceutics show some special characteristics of pharmacokinetics (PK). There are quite a number of studies focusing on th…
The effects of multiwalled carbon nanotubes (MWCNTs) modified by silane coupling agent (Trademark in china was KH570) and lactide (LA) on the properties of poly(lactic acid) (PLA) composites were investigated in this paper. The Scanning electronic microscopy (SEM) images showed that MWCNTs modified by both KH570 and L…
CdTe nanowires with the average diameter of only 40 nm coated with (Cd,Mg)Te shells are grown using Au-catalyzed vapor-liquid-solid growth mechanism in a system for molecular beam epitaxy. High optical quality of individual nanowires is revealed by means of low temperature cathodoluminescence and micro-luminescence. I…
Aluminum (Al) and copper (Cu) thin tube casings were employed to facilitate the equal channel angular pressing (ECAP) process of wrought AM30 magnesium (Mg) alloy. We covered the Mg rods (diameter, 14 mm) with pure copper (Mg/Cu) and Al-1050 alloy (Mg/Al) sheaths in the form of tubes (thickness, 2.5 mm). We then perfo…
Magnesium hydroxide (MH) was surface modified by bis [3‐(triethoxysilyl) propyl] tetrasulfide (Si‐69) in order to improve its compatibility with ethylene‐vinyl acetate (EVA) copolymer substrate. The modified MH (SMH) was then introduced to EVA through melt blending. The flammability was evaluated by limiting oxygen in…
Improvement of the wear resistance of functional surfaces is crucial in order to facilitate a variety of practical applications, such as self-cleaning or anti-fogging. This especially holds for functional surface nanostructures, whose tops can easily get worn off when exposed to even low abrasion forces. Thus, our wor…
A luminescent probe synthesised via biomimetic crystallization of zinc phosphate in the presence of protein fragment stabilised gold (Au) nanoclusters is reported. The engineered probe - with Au nanoclusters assembled on the crystal - was protease resistant and offered efficient bioimaging and uptake studies.
Enhancement of the performance of an InAs quantum dots (QDs) solar cell was investigated by using a nanostructured antireflection coating with hydrophobic properties. The surface modification was performed by growing ZnO nanoneedles on top of an InAs QDs solar cell’s surface, then the nanoneedles’ hydrophobicity treat…