Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A typical limitation of intelligent devices based on the use of shape-memory polymers as actuators is linked to the widespread use of distributed heating resistors, via Joule effect, as activation method, which involves several relevant issues needing attention, such as: (a) Final device size is importantly increased…
Abstract In the last 20 years, diffractive optics experienced a strong research interest and was in the center of many development projects in applied optics. To offer a side view for optical engineers, here, we discuss selected, business-related aspects of the current status of the transfer process to bring diffracti…
<div class="section abstract"><div class="htmlview paragraph">Future emissions regulations like BSIV and above in India, Diesel engine manufacturers are forced to find complex ways to reduce exhaust gas pollutant emissions, in particular NOx and particulate matter (PM). Exhaust gas recirculation (EGR) into…
Mesoporous carbon films are generally fabricated on rigid substrates that act to provide mechanical stability. Here, instead of utilizing rigid substrates, a thin sheet of polyimide (Kapton) is utilized as the substrate to enable continuous production of sheets of soft templated mesoporous carbon films. The mesoporous…
We investigate the long time dynamics of a strong glass former, SiO(2), below the glass transition temperature by averaging single-particle trajectories over time windows which comprise roughly 100 particle oscillations. The structure on this coarse-grained time scale is very well defined in terms of coordination numb…
Particles-stabilized foams have received more attention in recent years due to their specific characteristics and advantages in contrast to conventional foams which were stabilized with surfactants. However, the rheology of particles-stabilized foam in consolidated cores was rarely studied. To investigate the feasibil…
We report here a fast and reliable hard anodization process to make asymmetric anodic aluminum oxide (AAO) membranes which can serve as a template for large pitch-distance nanostructures. In order to make larger pitch distances possible, the common burning failure associated with the high current density during the co…
Noncovalently functionalized β-cyclodextrins (β-CDs)/graphene composite dispersions have been fabricated through layer-by-layer self-assembly. Scanning electron microscope and transmission electron microscopy characterization confirm that the β-CDs/graphene composites possess brick-like sandwich-type structure. X-ray…
We have succeeded in synthesizing single crystals of an organic radical $p$-Br-V [3-(4-bromophenyl)-1,5-diphenylverdazyl]. The dominant intermolecular interactions forming a one-dimensional spin chain are deduced from the molecular packing in the crystal, and the ab initio molecular orbital calculation also indicates…
To impart a desired optical property to metal nanoparticles (NPs) suitable for surface-enhanced Raman scattering (SERS) applications, it is crucial to assemble them in two or three dimensions in addition to controlling their size and shape. Herein, we report a new strategy for the synthesis and direct assembly of Ag N…
Preliminary impedance and stability of Sr 0.94 Ti 0.9 Nb 0.1 O 3-δ /10 vol.% 8YSZ (STN94/YSZ) composite electrodes, M/CGO infiltrated (M: Ni, Pd and Ru), has been evaluated in symmetric configuration, at OCV, under various H 2 O/H 2 atmospheres, with H 2 O contents between 3–50%, at 650–850°C. Initial total R p at 850…
Polycrystalline ZnS produced by chemical vapor deposition (CVD) is analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM) including electron backscatter diffraction (EBSD) to gain insight into the growth mechanism. Epitaxial growth of ZnS (111) layers is indicated in cubic CVD-ZnS. Mechanisms co…
„Haben Sie Gold versucht?“ Diese Frage wurde Masatake Haruta nach einem Vortrag über die Wasserstoffoxidation gestellt – und sie war der Auslöser für seine Forschungen zur heterogenen Katalyse mit Gold. Die Entwicklung dieses Gebiets seit der anfänglichen, überraschenden Beobachtung hoher katalytischer Aktivität in de…
By using Mössbauer spectroscopy in combination with susceptibility measurements it was possible to identify the supertransferred hyperfine field through the oxygen bridges between Dy(III) and Fe(III) in a {Fe4Dy2} coordination cluster. The presence of the dysprosium ions provides enough magnetic anisotropy to "block"…
A facile approach has been developed to prepare ultra-small hybrid silica spheres with a diameter of ∼10 nm, which show highly enhanced penetration ability in 3D glioma spheroids compared to conventional mesoporous silica nanoparticles.
N-doping into GeTe is investigated with the aim of reducing the volume change upon crystallization, which usually induces a huge internal stress in phase-change memory devices. It is demonstrated that the thickness change upon crystallization of a N-doped GeTe (GeTeN) film is almost zero when N is doped in an appropri…
Superconducting metamaterials are utilized to study the approach to the plasmonic limit simply by tuning temperature to modify the superfluid density, and thus the superfluid plasma frequency. We examine the persistence of artificial magnetism in a metamaterial made with superconductors in the plasmonic limit, and com…
The phase formation, morphology evolution and bandgap of Sn <sub>1−x</sub> Sb <sub>x</sub> Se (0 ≤ <italic>x</italic> ≤ 0.6) nanocrystals synthesized at 230–275 °C for 5–36 h in a one-pot system were studied.
Solution-processed CdS field effect transistors (FETs) and solar cells are demonstrated via spin-coating and thermal annealing of soluble cadmium thiolate compounds. The synthesis is carried out in one simple step using cadmium oxide and tertiary alkane thiols. The cadmium thiolates are soluble in organic solvents suc…
Neutron and synchrotron resonant x-ray magnetic scattering (RXMS) complemented by heat capacity and resistivity measurements reveal the evolution of the magnetic structures of Fe and Ce sublattices in a CeFeAsO single crystal. The RXMS of magnetic reflections at the Ce ${L}_{\mathrm{II}}$ edge shows a magnetic transit…