Materials Literature
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Using micro-Raman spectroscopy and scanning tunneling microscopy, we study the relationship between structural distortion and electrical hole doping of graphene on a silicon dioxide substrate. The observed upshift of the Raman G band represents charge doping and not compressive strain. Two independent factors control…
Graphene in its pristine form is one of the strongest materials tested, but defects influence its strength. Using atomistic calculations, we find that, counter to standard reasoning, graphene sheets with large-angle tilt boundaries that have a high density of defects are as strong as the pristine material and, unexpec…
The kinetics and mechanisms of nanoparticulate amorphous calcium carbonate (ACC) crystallization to calcite, via vaterite, were studied at a range of environmentally relevant temperatures (7.5-25 °C) using synchrotron-based in situ time-resolved Energy Dispersive X-ray Diffraction (ED-XRD) in conjunction with high-res…
The Protein Data Bank (PDB) is the world-wide repository of macromolecular structure information. We present a series of databases that run parallel to the PDB. Each database holds one entry, if possible, for each PDB entry. DSSP holds the secondary structure of the proteins. PDBREPORT holds reports on the structure q…
The title compound, [Nd(2)(C(5)H(6)O(4))(2)(C(8)H(4)O(4))(H(2)O)(4)]·17H(2)O, obtained via hydrothermal reaction of Nd(2)O(3) with glutaric acid and terephthalic acid, assembles as a three-dimensional open framework with ten-coordinate Nd-O polyhedra. The asymmetric part of the unit cell contains half a glutarate anio…
Abstract Photo‐induced phase switching dynamics in rubidium manganese hexacyanoferrate was investigated by visible pump mid‐infrared probe transmittance spectroscopy between 2000 and 2250 cm −1 . We monitored the CN − stretching vibration modes, which are sensitive to the valence states of the adjacent metal ions, to…
From the reaction of 6-(4-methoxymethyl-phenyl) fulvene (1a), 6-(N-methyl-pyrrole) fulvene (1b), and 6-(4-dimethylamino-phenyl) fulvene (1c) with LiBEt3H, the corresponding lithium cyclopentadienide intermediates (2a–c) were synthesized. These intermediates were then transmetallated to vanadium with VCl4 to yield the…
Abstract This article analyses silicon quantum dots based materials which could be used in all‐silicon tandem solar cells. The contact properties of aluminium and nickel on this material are obtained by circular transmission line measurements (TLM). Both metals make ohmic contacts with the material and the contact res…
A new route for the fabrication of polymeric nanorods with functional moieties via post-modification of reactive nanorods is described. To this end reactive nanorods with a homogenous and narrow size distribution were fabricated by utilizing an anodic aluminium oxide (AAO) template-assisted approach. The nanorods are…
The layer-dependent Debye temperature of Ru(0001) is determined by means of high-energy resolution core-level photoelectron spectroscopy measurements. The possibility to disentangle three different components in the $\text{Ru}\text{ }3{d}_{5/2}$ spectrum of Ru(0001), originating from bulk, first-, and second-layer ato…
Medium- to high-resolution X-ray structures of DNA and RNA molecules were investigated to find geometric properties useful for automated model building in crystallographic electron-density maps. We describe a simple method, starting from a list of electron-density 'blobs', for identifying backbone phosphates and nucle…
The adsorption and dissociation of the H 2 molecule on the PdAg, PdAu, PtAg, and PtAu heteronuclear dimers, both isolated and deposited on carbon, were investigated by means of density functional theory. It was found that the Pd and Pt ends of the isolated dimers adsorb H 2 more exoenergetically than the Ag and Au end…
Abstract This work compares the thermal degradation kinetics of neat atactic poly(methyl methacrylate) (a‐PMMA), and its composites with fullerene C 60 and multiwall carbon nanotubes (MWNT) as revealed by thermal desorption mass‐spectrometry (TDMS), and thermal gravimetry analysis (TGA). TDMS suggests the decrease of…
Batch foaming processes were employed to prepare plastic foams from polypropylene (PP)/polydimethylsiloxane (PDMS) blends. Various amounts of PDMS were added to a PP matrix, and the resulting blends were batch foamed at different saturation pressures using carbon dioxide (CO2) as the blowing agent. Ultimately, the ble…
The SMC belt composed of two kinds of SMAs with different phase transformation temperatures and SMP, was fabricated and the three-way (reciprocating) movement and recovery force in bending actuation were investigated. The results obtained can be summarized as follows. 1) The three-way bending movement was achived duri…
Abstract Three new homoleptic lanthanide(III) tris(pivalamidinates), [ t BuC(N i Pr) 2 ] 3 Ln ( Ln = Ce ( 1 ), Eu ( 2 ), Tb ( 3 )) were synthesized by reaction of anhydrous Ln Cl 3 with 3 equivalents of in situ prepared Li[ t BuC(N i Pr) 2 ] in THF. X‐ray structural analyses confirmed the presence of homoleptic, unsol…
A systematic analysis for two types of symmetrical coupled composite right/left-handed (CRLH) leaky-wave (LW) transmission lines (TL) based on the common/differential-mode excitations is presented. The first proposed coupled CRLH LW-TL is a 4-port via-free coupled CRLH LW-TL that behaves as a conventional CRLH LW-TL u…
A combinatorial chemistry method was employed to screen the yellow phosphors of (Lu₁₋(x)Gd(x))₃Al₅O₁₂:Ce₃(y) as luminescent materials. An array of 81 compositions was synthesized by inkjetting nitrate solutions into microreactor wells and sintering at high temperature. The candidate formulations were evaluated by lumi…
Targeted nanoparticles have the potential to deliver a large drug payload specifically to cancer cells. Targeting requires that a ligand on the nanoparticle surface interact with a specific membrane receptor on target cells. However, the contribution of the targeting ligand to nanoparticle delivery is often influenced…
Plasma-driven catalysis (PDC) was used to remove toluene in air. Water vapor is a critical operating parameter in this process. Its effect on toluene removal efficiency, carbon balance, CO2selectivity, and outlet O3concentration was systematically investigated. Results showed that water vapor imposed negative effect o…