Materials Literature
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A facile strategy is reported for design and preparation of flexible micro-supercapacitors on a chip based on patterned electrodes of conducting polyaniline nanowire arrays. The interdigital microelectrode is produced by combining microfabrication technology and an in-situ chemical polymerization approach. The assembl…
Abstract Engineering the dropwise condensation of water on surfaces is critical in a wide range of applications from thermal management (e.g. heat pipes, chip cooling etc.) to water harvesting technologies. Surfaces that enable both efficient droplet nucleation and droplet self‐removal (i.e. droplet departure) are ess…
Chemical vapor deposition is used to prepare novel 3D graphene networks, with ethanol as the carbon source. These networks are used as templates for the construction of graphene/metal oxide composite-based supercapacitor electrodes. As a proof of concept, NiO is deposited on 3D graphene networks. The product exhibits…
Interfaces in heterostructures composed of two different transition-metal oxides are now a strongly growing research topic in condensed-matter physics due to the anomalous electronic properties very different from those of the component materials. Here we present resonant soft x-ray scattering studies of SrTiO 3 /LaAl…
The araBAD operon encodes three different enzymes required for catabolism of L-arabinose, which is one of the most abundant monosaccharides in nature. L-ribulokinase, encoded by the araB gene, catalyzes conversion of L-ribulose to L-ribulose-5-phosphate, the second step in the catabolic pathway. Unlike other kinases,…
We present a study of the interfacial interaction between a ferromagnetic metallic manganite in proximity to a charge-ordered manganite in a bilayer structure. Different thicknesses (2--45 nm) of ferromagnetic metallic Nd${}_{2/3}$Sr${}_{1/3}$MnO${}_{3}$ (NSMO-1/3) were grown by pulsed laser ablation on charge-ordered…
A series of experimental trials has been conducted at University of Sheffield, UK to assess the effect of density and moisture content of Leighton Buzzard sand on the impulse applied to a target when exposed to loading from the detonation of a shallow-buried charge. Sand samples have been prepared in stiff cylindrical…
Fusion has the potential for delivering safe, clean, low carbon power; however, significant scientific and engineering hurdles must first be overcome. One such hurdle is the design of materials that will withstand the harsh conditions. The materials which line the vessel walls will experience exceptionally high heat a…
Comparing fabrics on the basis of properties determined in the laboratory can provide information valuable to manufacturers and users of fabrics and garments, although small changes to test methods seem to have the potential to yield data which is more relevant. Thermal resistance is the focus of a small experiment hi…
Energy transport control in low dimensional nanoscale systems has attracted much attention in recent years. In this paper, we investigate the energy transport properties of the Frenkel-Kontorova lattice subject to a periodic driving force, in particular, the resonance behavior of the energy current by varying the exte…
Changing the core heteroatoms in porphycenic macrocycles can have a dramatic effect on the two-photon absorption properties via tuning of resonance enhancement between Q-band and Soret-band states.
We have investigated the possibility of decorating, using a bottom-up strategy, patchy particles in such a way that they self-assemble in (two-dimensional) Archimedean tilings. Except for the trihexagonal tiling, we have identified conditions under which this is indeed possible. The more compact tilings, i.e., the elo…
We report the observation of non-photochemical laser-induced nucleation (NPLIN) of sodium chlorate from its melt using nanosecond pulses of light at 1064 nm. The fraction of samples that nucleate is shown to depend linearly on the peak power density of the laser pulses. Remarkably, we observe that most samples are nuc…
The new germanium selenophosphates K(4)Ge(4-x)P(x)Se(12) (1) and Rb(6)Ge(2)P(2)Se(14) (2) are reported. The former is a one-dimensional metastable compound synthesized using the polychalcogenide flux method that crystallizes in the monoclinic space group P2(1)/c with lattice parameters a = 6.7388(7) Å, b = 13.489(1) Å…
Bagasse was modified with sodium hydroxide and silane, and the obtained three polymer composite types, namely natural fiber, sugarcane bagasse, and plaster were procured by the two-roll mill method. The characterization of the modified sugarcane bagasse was achieved with attenuated total reflection-Fourier transform i…
The assembly and characterization of well-defined, end-tethered poly( p -phenylene) (PPP) brushes having high molecular weight, low polydispersity and high 1,4-stereoregularity are presented. The PPP brushes are formed using a precursor route that relies on either self-assembly or spin coating of high molecular weight…
Numerical inversion of effective medium equations used in ellipsometry data analysis are carried out, without using any parameterized dispersion formula, in order to investigate on the influence of size distribution (SD) on the dielectric properties of silicon quantum dots (Si QDs) within a silica matrix over the ener…
Abstract We have studied the magnetoelectric coupling in ZnO films deposited on Metglas substrates. Highly c ‐axis oriented ZnO films were successfully deposited using pulsed laser deposition at a low temperature of 300 °C. High quality films with low surface roughness of 2.82 nm and thicknesses of about 2 μm were obt…
We study the epitaxial GaAs-AlAs interface of wide gap materials by full-potential density functional theory. AlAs thin films on a GaAs substrate and GaAs thin films on an AlAs substrate show different trends for the electronic band gap with increasing film thickness. In both cases, we find an insulating state at the…
Modular structures of space‐filling building blocks having dimension orders of magnitude larger (≈1000 μm) than the particle size (0.1–10 μm) may offer a high potential for near net shape manufacturing as well as toughening of brittle ceramic materials. We demonstrate vibration assisted periodic pattern formation of a…