Materials Literature
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In this article, we demonstrate encapsulation of octakis(hexylthio) zinc phthalocyanine molecules by non-covalent supramolecular organization within self-assembled peptide nanofibers. Peptide nanofibers containing octakis(hexylthio) zinc phthalocyanine molecules were obtained via a straight-forward one-step self-assem…
The relationship between kinetic arrest, connectivity percolation, structure and phase separation in protein, nanoparticle, and colloidal suspensions is a rich and complex problem. Using a combination of integral equation theory, connectivity percolation methods, naïve mode coupling theory, and the activated dynamics…
Crystals in polymers: The γ form of isotactic polypropylene shows an unexpected better ductility than the mesophase because of the occurrence of a stress-induced transition from the γ form to the mesophase. This provides a mechanism of conversion of mechanical energy into latent heat of fusion that induces local melti…
By using the flexible bis(triazole) ligand 1,2-bis(1,2,4-triazol-1-yl)ethane (bte), a polyoxometalate-templated compound, [Zn2(bte)4(SiW12O40)]·2H2O (1), was synthesized under hydrothermal conditions. The compound was characterized by single-crystal X-ray diffraction, elemental analyses, IR spectroscopy, photoluminesc…
Abstract We report on a double quantum dot which is formed in a width‐modulated etched bilayer graphene nanoribbon. A number of lateral graphene gates enable us to tune the quantum dot energy levels and the tunneling barriers of the device over a wide energy range. Charge stability diagrams and in particular individua…
We report a controlled synthesis of Co2P nanostructures. The products showing Curie–Weiss paramagnetic behavior have an orthorhombic structure with novel morphology. Nanoneedles with a tip of less than 10 nm homogeneously grew out of the center. The effects of temperature and the morphological evolutions of the interm…
Influences of drying and nondrying steps on structures of layer-by-layer (LbL) assembled sodium silicate/TiO(2) nanoparticles films (donated as silicate/TiO(2) films) have been systematically investigated. The nondrying LbL assembly produces highly porous silicate/TiO(2) films with large thickness. In contrast, the si…
Perfect, sectorial, and branched Sb 2 O 3 microstructures (st-Sb 2 O 3 ) were synthesized using a hydrothermal method based on a seeded growth procedure. The structure and composition of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy…
Doping of group IV semiconductors with Mn is a critical building block in the development of novel spintronics devices, and the fabrication of magnetic nanostructures is the next challenge in this field. The growth of monatomic Mn wires on Si(100)(2 × 1) at room temperature is investigated with scanning tunneling micr…
Unexpectedly, we observe a strong Gaussian decay in the nuclear quadrupole resonance signal obtained from a powder sample of spin-1 nuclei under perturbation by off-resonant radio frequency pulses. Using a model composed of just pairs of nuclei, we theoretically determine that the decay is due to the homonuclear dipol…
Proper and accurate placement of the components of the unoccupied density of states in uranium dioxide requires a careful calibration of the energy scales in the spectroscopic investigations. Here, the energy scale calibrations and corresponding spectroscopic measurements are described in detail, including photoelectr…
Cu2O and Ag/Cu2O hybrids with different Ag contents were synthesised by reducing AgNO3 and Cu(Ac)2 with Na2SO3 via a hydrothermal method. The as-prepared samples were characterised by X-ray diffraction, transmission electron microscopy and scanning electron microscopy technologies. The final samples were used as catal…
Carbon nanotubes (CNTs) coated with nanocrystals (NCs) or quantum dots (QDs) form a new class of hybrid nanomaterials that could potentially display both the unique properties of NCs and those of CNTs. The photo-induced charge transfer within the hybrid nanostructure may either increase or decrease the CNT electrical…
This brief presents low-frequency noise measurements on a graphene field-effect transistor with graphene layer decomposed from SiC substrate. The measurements indicate the predominance of flicker noise in the current noise source measured between drain and source with quadratic dependence with a drain current. The noi…
A wireless and passive stress sensor was developed by measuring changes in the induced magnetic field of a magnetoelastic strip under varying force loadings. The magnetoelastic strip was made of an amorphous ferromagnetic alloy and was attached to a solid body at its two longitudinal ends to form a bridge-like structu…
Controlled growth of nanostructures has long been regarded as one of the biggest obstacles to their commercial applications. Herein we demonstrate the feasibility of controlling growth of ZnO nanotubes and nanowires by floating substrates on the surfaces of reacting solutions with different concentrations, a key facto…
Abstract Size‐exclusion chromatography coupled to multiangle light scattering (SEC‐MALS) has been used to detect long‐chain branching (LCB) in polyethylene (PE) from Cr/silica catalysts for the first time. The observed LCB response to several catalyst and reactor variables mostly confirms earlier conclusions drawn fro…
The polarizable charge-on-spring model of water with three Gaussian charges developed by the present authors [A. Baranyai and P. T. Kiss, J. Chem. Phys. 133, 144109 (2010)] was studied. We introduced an analytic function for the polarizability in terms of the local electric field. Following theoretical suggestions, th…
We have investigated the ordered magnetic structures of TbMn${}_{2}$O${}_{5}$ and their temperature evolution using single-crystal neutron Laue diffraction. From a least-squares fit to diffraction intensities extracted from the Laue patterns recorded at varying angles at $T=2$ K, we were able to refine a magnetic stru…
A novel preparation method was developed for the preparation of gold/iron oxide supported catalysts using the bimetallic carbonyl cluster salts [NEt4]4[Au4Fe4(CO)16] and [NEt4][AuFe4(CO)16] as precursors of highly dispersed nanoparticles over different supports. A series of catalysts with different metal loadings were…