Materials Literature
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Recent advancements in chemical vapor deposition techniques for the growth of graphene have enabled access to large-area and high-quality graphene film for various applications. The key step in determining the quality of the final graphene films is the transfer process to desired substrates, with the goal of minimizin…
The effects of a high-pressure O2-loading treatment on the radiation response of Ge-doped optical fibers (OFs) were investigated. We found that the incorporation of high concentration of interstitial molecular oxygen remarkably enhances the resistance to ionizing radiation of Ge-doped OFs in the UV-Visible domain and,…
Thermoelectric energy conversion technology has received significant attention because of its promising applications and environmentally clean nature. The innovative design of efficient thermoelectric materials is assisted by simple and reliable techniques for fast and accurate testing. Here, a simple approach for rap…
This paper presents a spectroscopic investigation of deoxyperidinin, a synthetic peridinin analogue in which the carbonyl functional group in peridinin was replaced by a nonconjugated methylene group. Steady-state and ultrafast time-resolved absorption and fluorescence spectroscopic experiments are carried out on deox…
We prepared monoclinic hydroxyapatite (HAp) ceramics and measured their dielectric properties. The dielectric dispersion that was observed in the monoclinic HAp consisted of two different relaxations and could be expressed by a summation of two Debye-like relaxations. One relaxation was ascribed to the reorientational…
The analysis of low-temperature specific heat of rare-earth (RE)-containing quasicrystals and periodic approximants and consequent interpretation of their electronic properties in the $T\ensuremath{\rightarrow}0$ limit is frequently hampered by the Schottky effect, where crystalline electric fields lift the degeneracy…
Mg-based alloys as biodegradable materials have several advantages. However, the extensive applications of Mg-based alloys are limited mainly by their high corrosion rate and loss in structural integrity in a physiological environment. In order to improve the corrosion resistance and biocompatibility of biomedical mag…
We have investigated the magnetic and magnetoelectric properties of ${\mathrm{CaMnGe}}_{2}{\mathrm{O}}_{6}$ by means of powder neutron diffraction, magnetic susceptibility, heat capacity, and electrical polarization measurements. The presence of one-dimensional short-range magnetic correlations within the ${\mathrm{Mn…
Waves propagating in a negative-index material have wave-front propagation (wavevector, k) opposite in direction to that of energy flow (Poynting vector, S). Here we present an experimental realisation at microwave frequencies of an analogous surface wave phenomenon whereby a metasurface supports a surface mode that h…
Solvent vapor annealing is a promising, flexible platform for controlling the self-assembly of block copolymer thin films. However, the ability for static solvent annealing alone to provide sufficient bias to generate vertically oriented features is limited. Here, we use dynamical field theory simulations to investiga…
The structural characteristics of monoclinic CuO nanowires (NWs) fabricated by heating pure Cu in ambient air were investigated by electron microscopy. Besides the single-crystalline NW, four different twinned NWs with twinning planes of (11\bar 1), (002), (110) and {{(20\bar 2)}} have been found. The twin boundaries…
Although there have been reports describing the nucleophilic reactivity of peroxomanganese(III) intermediates, as well as their conversion to high-valent oxo-bridged dimers, it remains a challenge to activate peroxomanganese(III) species for conversion to high-valent, mononuclear manganese complexes. Herein, we report…
A facile low temperature co-precipitation method for the synthesis of crystalline cobalt ferrite nanostructures using ferrous sulfate salt as the precursor has been discussed. The prepared samples were compared with nanoparticles prepared by conventional co-precipitation and hydrothermal methods using ferric nitrate a…
A 'modified' Langmuir–Blodgett (MLB) technique has been developed as a simple, low cost, energy efficient and scalable alternative to conventional Langmuir–Blodgett (LB) technique for the transfer of graphene oxide (GO) monolayer sheets from air–water interface on to solid substrates. This technique uses a simple appa…
The mechanisms of the impact of the laser assisting effect on the dispersion kinetics and on the structure of the deposited layers in electron beam dispersion of a polymer target were analyzed. The proposed model and analytical expressions adequately describe the kinetic dependence of the polymer materials dispersion…
The crystal structure of sodium dipotassium citrate, Na(+)·2K(+)·C6H5O7 (3-), has been solved and refined using laboratory X-ray powder diffraction data, and optimized using density functional techniques. The Na(+) and one of the K(+) cations are six-coordinate, with bond-valence sums of 1.13 and 0.92 valence units, r…
The effect of concentration and type of fillers on mechanical properties of composite material based on polyimide were studied. Polyethylene terephthalate (PET, polyester), polycarbonate (PCAR) and montmorillonite (MM) were used as the fillers. The samples were prepared by mechanically blending the polyimide-based lac…
The industrial importance of fiber reinforced plastics (FRPs) is growing steadily in recent years, which are mostly used in different niche products, has been growing steadily in recent years. The integration of sensors and actuators in FRP is potentially valuable for creating innovative applications and therefore the…
It is well known that certain amounts of oxides doping can improve the ionic conductivity and mechanical properties of the Na-β"-Al2O3 solid electrolytes. In order to obtain high quality Na-β"-Al2O3 solid electrolytes, Nb2O5 doped Na-β"-Al2O3 solid electrolytes have been synthesized by double-zeta process. The effects…
The design of a smart heterogeneous catalyst for controllable reaction switching is highly desirable in asymmetric catalysis. In this work, by taking advantage of the thermoresponsive behavior of a water-soluble polymer coating and the confined feature of silica nanoparticles, we have constructed a silica material wit…