Materials Literature
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A linear polarisation converter surface with broadband and high‐efficiency properties is proposed. The proposed frequency selective surface (FSS) polariser consists of two‐corner‐cut diagonal rectangular printed on a substrate backed by a pinwheel loop shape ground. The combination of two‐corner‐cut diagonal rectangul…
TiO 2 thin films have received attention as intermetallic diffusion barriers in hydrogen-permeable membranes used for the extraction of purified H 2 from chemical reactors. We report the fabrication of thin (∼100 nm) TiO 2 films on Si(111) substrates by pulsed laser deposition. Anatase and rutile phases are found to c…
The super-sensitive protonation behavior of trifluoroethoxy-substituted phthalocyanines (TFEO-Pcs) was carefully studied using UV-vis and fluorescence spectroscopy, as well as computational calculations. The practical utility of TFEO-Pcs in sensor technology was demonstrated by identifying chloroform samples from diff…
Single quantum emitters coupled to different plasmonic and photonic structures are key elements for integrated quantum technologies. In order to fully exploit these elements, e.g., for quantum enhanced sensors or quantum repeaters, a reliable fabrication method as enabling technology is crucial. In this work, we prese…
A Ni loaded catalyst on mesoporous ceria, with a large surface area, prepared through the surfactant-assisted precipitation and impregnation method was investigated as an efficient catalyst for propane partial oxidation to produce synthesis gas. The results show that 2.5 wt% Ni/CeO2 had the optimum Ni loading, exhibit…
In this paper, a tunable multiband band-stop filter based on single-layer and few-layer doped periodically graphene rings is designed at THz wavelength. The performance of the proposed structure is calculated by using the finite-difference time-domain method. The metamaterial structure is comprised of the concentric g…
Mesoporous silica materials have demonstrated a vast spectrum of applications, stimulating an intensive field of study due to their potential use as nanocarriers. Nonetheless, when produced at the nanoscale, their structural characterization is hindered due to the re-arrangement of the pores. To address this issue, th…
We report plasmon resonant excitation of hot electrons in a metal based photocatalyst in the oxygen evolution half reaction in aqueous solution. Here, the photocatalyst consists of a 100-nm thick Au film deposited on a corrugated silicon substrate. In this configuration, hot electrons photoexcited in the metal are inj…
Herein, using first-principles calculations we predict magnetization reorientation and large perpendicular magnetic anisotropy (PMA) in spinel ${\mathrm{Fe}}_{3}{\mathrm{O}}_{4}$/MgO heterostructure by replacing the octahedral Fe ions with Cu. The substitutional ${\mathrm{Cu}}^{2+}$ ions prefer the octahedral site wit…
When stainless steel is implanted in human bodies, the corrosion resistance and biocompatibility must be considered. In this study, first, a protective organic silicone film was coated on the surface of stainless steel by a plasma deposition technique with a precursor of hexamethyldisilazane (HMDSZ). Then, ultraviolet…
In the present work, nanostructured ZnO doped with (2, 4, 6, 8 and 10 ) is prepared by conventional solid state reaction method. X-ray diffraction peak intensities are sharp and narrow, confirming that the sample is of high quality with good crystallinity. The intensity and full width at half-maximum of x-ray diffract…
Foam sandwich structures reinforced with the fiber column arrays are proposed to achieve broadband absorption at microwave frequencies as well as good mechanical properties. To achieve the microwave absorption, two layers of resistive films are embedded into the sandwich structures. The results show that the proposed…
We explore the possibility of achieving superdirectivity in metamaterial-inspired endfire antenna arrays relying on the good services of magnetoinductive waves. These are short-wavelength slow waves propagating by virtue of coupling between resonant meta-atoms. Magnetoinductive waves are capable of providing a rapidly…
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTβ-Cyclodextrin-Derived Monolithic, Hierarchically Porous Polyimides Designed for Versatile Molecular Separation ApplicationsEric E. LeonhardtEric E. LeonhardtDepartment of Chemistry, Department of Chemical Engineering, and Department of Materials Science & Engineering…
Spatiotemporal control over the regulation of intra- and intermolecular motions in naturally occurring systems is systematically studied to expand the toolbox of mechanical operations in multicomponent nanoarchitectures. DNA is ideally suited for programming light-powered processes that are based on a minimalist molec…
ABSTRACT A novel, pH‐responsive supramolecular graft copolymeric micelle, composed of dextran and poly (oleic acid), has been synthesized through reversible addition fragmentation chain transfer polymerization with controlled M n and narrow polydispersity. The structural properties of the copolymer have been studied u…
For many compounds, small needle crystals could be easily formed, and crystals with other morphologies are quite difficult to be obtained by a simple crystallization method, which will result in difficulties for downstream processing. To improve the properties of the solid state product, such as flowability, compressi…
We investigate the effect of various spherical nanoparticles in a polymer matrix on dispersion, chain dimensions and entanglements for ionic nanocomposites at dilute and high nanoparticle loading by means of molecular dynamics simulations. The nanoparticle dispersion can be achieved in oligomer matrices due to the pre…
A highly sensitive and selective Raman sensor has been developed by combining molecularly imprinted cavities, silver nanoparticles, and graphene oxide into a hybrid organic-inorganic film. The molecular imprinted nanocomposite material is an advanced platform that exhibits Graphene-mediated Surface-Enhanced Raman Scat…
In this letter, a simulation study on the structural and dynamical properties of a quasi-two-dimensional (q2D) binary complex plasma with Langevin dynamics is presented.The effect of a non-reciprocal interaction on the structure is investigated by comparing systems with pure Yukawa and with point-wake Yukawa interacti…