Materials Literature
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Layered double hydroxides (LDHs), also called anionic clays, consist of cationic brucite-like layers and exchangeable interlayer anions. These hydrotalcite-like compounds, with Zn and Al in the layers and chloride in the interlayer space, were prepared following the coprecipitation method at constant pH. The affinity…
Experimentos en el salón de clase y materiales de enseñanza sobre OLEDs con polímeros semiconductores Organic semiconductors are a new class of materials representing an innovative field of scientific research. Efficient illuminants, such as organic light emitting diodes (OLEDs), will soon help reduce the world’s ener…
In this study, a bilayered collagen-based membrane was prepared to mimic skin structure as a potential candidate for wound dressing application. To achieve the desired bilayered structure similar to skin, freeze-drying and electrospinning methods were used consecutively. The macroporous sublayer was prepared by freeze…
Ferromagnetic SmCo5 nanoparticles with large size have been directly synthesized by a magnetron-sputtering-based gas-phase condensation method. Based on this method, we studied the effect of thermodynamic environment for the growth of SmCo5 nanoparticles. It was found that the well-crystallized SmCo5 nanoparticle tend…
A photoresponsive azobenzene molecule DCAZO2 with two cholesteryl groups linked to both sides of the azobenzene group is doped in a mixture of nematic liquid crystal E7 and chiral dopant S811 (61.9 wt% E7, 36.1 wt% S811 and 2.0 wt% DCAZO2). Cooled from isotropic phase to 33.0°C, chiral nematic liquid crystal (N*LC) wa…
An extensive investigation on the magnetism of Gd5(SixGe1−x)4 compounds which stabilize in the Gd5Si4-type structure is here presented, focusing on the Gd5Si4 and Gd5Si2Ge2 compositions. Through Arrott plot analysis, the temperature dependencies of the spontaneous magnetizations are retrieved and the magnetic interact…
The thermoelectric properties of a quantum dot array (QDA) embedded in a nanowire connected to metallic electrodes are investigated theoretically via the extended Hubbard model in the Coulomb blockade regime. Coupled quantum dots (QDs) with dot number N = 2-5 are considered. It is found that the thermoelectric propert…
Cr buffer layers of six different thicknesses (100, 200, 300, 400, 500 and 600 nm) were respectively deposited on silicon substrate so as to constitute a series of Cr implantation layer/Cr buffer layer/tetrahedral amorphous carbon (ta-C) films. Analysis by SEM suggests that the implantation of Cr layer favourably impr…
We have reported first principles calculations based on the density functional theory within the local density approximation to explain the structural, electronic, elastic, vibration (phonon dispersion curves and one-phonon density of states) and optical properties for NbIrSn, which is semiconductor half Heusler compo…
Abstract Supramolecular synthesis, the “bottom‐up” construction of higher‐order structures from monomeric building blocks, represents a flexible approach for the generation of multivalent materials. Here, monovalent building blocks decorated with a single bioactive ligand were synthesized. In water, these supramolecul…
In geology and daily life, kinetics and dynamics of particle (including crystal, droplet, and bubble) dissolution or growth in a liquid are a large class of often-encountered problems. The growth or dissolution of bubbles and drops are usually controlled by mass transfer, whereas the growth or dissolution of crystals…
Triisopropylsilyltetrathiafulvalene (TIPS-TTF) has been devised as a promising platform for the synthesis of low-symmetry TTF derivatives. The bulky TIPS group allows TIPS-TTF to undergo palladium-catalyzed direct diarylation as well as LDA-mediated dilithiation exclusively on the roomier dithiole ring. Subsequent flu…
To explore the magnetoelectric effect in lead free bulk ceramics, solid solutions of BaZr0.05(FexTi1−3x/4)0.95O3 have been synthesized using conventional solid state reaction route with x = 0.000 to 0.020 in steps of 0.005. A small amount of Fe content shows an immense effect on properties of barium zirconium titanate…
Superconducting FeSe thin films have been deposited onto (001)-oriented single-crystalline MgO substrates by conventional radio-frequency magnetron co-sputtering of a FeSe target and a pure Se target. The composition of the films is within the homogeneity range of the tetragonal β phase close to stoichiometry. Films w…
The development of nanoscaled materials has deserved a remarkable interest for biomedical applications. Biological tissues are essentially composite materials with particular mechanical properties that should be carefully considered during the design of innovative biomedical scaffolds. Electrospun membranes are often…
A new prompt room temperature synthetic route to 2D nanostructured metal oxide-graphene-hybrid electrode materials can be developed by the application of colloidal reduced graphene oxide (RGO) nanosheets as an efficient reaction accelerator for the synthesis of δ-MnO2 2D nanoplates. Whereas the synthesis of the 2D nan…
Controlling the dehydrogenation process in a suitable reaction route by choosing the appropriate reaction conditions is crucial for a hydrogen storage system. The dehydrogenation process of the eutectic 0.68LiBH 4 –0.32Ca(BH 4 ) 2 mixture was investigated by dynamic pressure–composition isotherms, X-ray diffraction, a…
The basic oxygen steelmaking (BOS) process generates a significant amount of iron bearing dusts, and the recovery of these affects the economics and sustainability of the process. However, zinc contamination of the dust restricts how much can be recovered through the process. An inline sampling system was used to isok…
We propose design pathways to improve the efficiency of multiple exciton generation in nanoparticle-based solar cells by carrying out ab initio calculations of impact ionization (II) rates in semiconducting nanoparticles (NPs). In NPs with unreconstructed surfaces, quantum confinement has two competing effects: it enh…
Azobenzene is one of the most widely used photoactive units and recently an ethylene-bridged azobenzene (BAB) was reported to have greatly enhanced conversion efficiency, quantum yield, and other favorable properties. As the first step towards exploring its photo-switchable character in real systems, we report here a…