Materials Literature
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ABSTRACT In this work, metamaterials are adapted for optimal design of filters with specific characteristics that are useful for sensor applications. The random hill climbing optimization method is used to find optimal structures. Periodic method of moments is applied to calculate the fitness functions of the resulted…
This paper presents a functionalized, horizontally oriented carbon nanotube network as a sensing element to enhance the sensitivity of a pressure sensor. The synthesis of horizontally oriented nanotubes from the AuFe catalyst and their deposition onto a mechanically flexible substrate via transfer printing are studied…
This study investigated the effect of kenaf parts (kenaf whole stem, kenaf core, and kenaf bast) on the mechanical and physical properties of single-layer and three-layer particleboards made from kenaf (Hibiscus cannabinus L.) and rubberwood (Hevea brasiliensis). The findings showed that the use of kenaf whole stem, w…
Mixed morphologies of Ga-doped Zinc Oxide (ZnO) nanostructures are synthesized by vapor transport method. Systematic scanning electron microscope (SEM) studies of different morphologies, after periodic heat treatments, gives direct evidence of sublimation. SEM micrographs give direct evidence that morphological defect…
Atmospheric pressure helium plasmas, generated in the open air by 13.56 MHz rf power, were applied for the glass surface wettability modification. The plasma gas temperature, measured by the spectroscopic method, was under 400 K which is low enough to treat the samples without thermal damages. The hydrophobicity of th…
Abstract The synthesis, characterization, magnetic properties, and magnetostructural correlation of a square‐grid complex having the molecular formula [Cu 16 L 1 8 ](dmf) 3 ( 1 ) {H 4 L 1 = 2,6‐bis[(3‐methoxysalicylidene)hydrazinecarbonyl]pyridine} is described. Reaction of the H 4 L 1 ligand and the Cu 2+ salt genera…
This Letter reports a nonlinear directional waveguide coupler written by ultrafast laser in gallium lanthanum sulfide chalcogenide glass. The nonlinear waveguide device is tested with laser pulses input in two orthogonal polarizations, and all optical switching at 1040 nm between the two coupled waveguides is observed…
Silver has unique electrical, catalytic, and plasmonic characteristics and has been widely sought for fabrication of nanostructures. The properties of silver nanostructures are intimately coupled to the structure of silver crystals. Two crystal structures are known for silver: the stable (ground) state cubic face cent…
The electronic properties of epitaxial graphene (EG) on SiC (0001) depend sensitively on the surface morphology of SiC substrate. Here, 2–3 layers of graphene were grown on on-axis 6H-SiC with different step densities realized through controlling growth temperature and ambient pressure. We show that epitaxial graphene…
The synergistic effect of layered double hydroxide (LDH) and prepared nano-zinc phosphate was studied by melt compounding of polypropylene (PP) on a Brabender Plastograph. The obtained lumps of composites were grinded and injection molded to test the performance of nanocomposites with respect to their mechanical, phys…
Abstract The influence of cross‐conjugation vs. linear conjugation on the electronic communication between donor and acceptor groups in phenol(ate)–bridge–nitrobenzene chromophores was investigated by solution and gas‐phase absorption spectroscopy, fluorescence spectroscopy, and quantum chemical calculations. The comp…
The conformation and solid state structure of the two α and β polymorphs of poly(butylene terephthalate) are here studied by means of state-of-the-art first principles calculations, carried out both for the crystals and the infinite one-dimensional chain models. Focusing in details on the debated β form, induced by me…
Scanning electron microscopy (SEM) is used to evaluate potential chromosome preparations and staining methods for application in high-resolution three-dimensional X-ray imaging. Our starting point is optical fluorescence microscopy, the standard method for chromosomes, which only gives structural detail at the 200 nm…
Abstract 2D β-Ga 2 O 3 flakes on a continuous 2D graphene film were prepared by a one-step chemical vapor deposition on liquid gallium surface. The composite was characterized by optical microscopy, scanning electron microscopy, Raman spectroscopy, energy dispersive spectroscopy, and X-ray photoelectron spectroscopy (…
Polycrystalline Bi1−xYxFeO3 films with varying x from 0 to 0.30 were prepared by pulsed laser deposition on surface oxidized Si (100) substrates with LaNiO3 as buffer layer. The influence of Y doping on the structure, ferroelectric properties, and exchange bias have been systematically investigated. X-ray diffraction…
Ab initio calculations were performed on the scheelite-type MGeO 4 (M = Hf and Zr) compounds, which find a wide range of applications such as in X-ray imaging. We have studied the high-pressure structural stability, elastic constants, electronic structure, and optical properties of these compounds through density func…
ABSTRACT Polylactide palygorskite (fibrous clay) composites were prepared by solvent casting method. Both pristine and organically modified palygorskite were used for composite preparation. The detailed crystallization behavior, morphology, and thermal properties of neat polylactide and the corresponding composites we…
In this work, Eu 3+ and Tb 3+ doped GdPO 4 nanocrystals, with different shapes were successfully synthetized by an original hydrothermal method. The particles morphology was modified changing the pH value and using glycerol as co‐solvent in the synthesis. Depending on the synthesis conditions, TEM analyses have reveal…
Single crystal X-ray diffraction data measured at 100 K for Dianin’s compound (DC) and 18 of its clathrates formed with a wide range of guest molecules provide considerable insight into the way the host adjusts to accommodate guest molecules. Detailed information is also obtained regarding the location, orientation, a…
A biocompatible strontium phosphate (SrP) conversion coating was used to reduce the degradation rate of pure magnesium (Mg) as tested in vitro in minimum essential medium (MEM). The coating has been specifically developed on the basis of its excellent corrosion resistance, and its potential for biocompatibility and or…