Materials Literature
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High-energy X-ray diffraction experiments have been performed on GeSe 4 glass up to pressures of 8.6 GPa, and the equation of state has been measured up to 10 GPa. The X-ray structure factors reveal a decrease in the first sharp diffraction peak intensity and broadening with pressure, which signifies a break-up of the…
We investigated the charge separation process of an artificial photosynthesis molecule, zinc porphyrin–benzoquinone (ZnP–BQ) using the ab initio symmetry adapted cluster configuration interaction method and density functional theory. The energy of the charge separated (CS) state of the monomer indicates that electron…
Traditionally, calcium aluminate cement is always used as the binding agent for refractory castable applied in steel and iron, but cement contains many impurities, it is easy to generate low-melting additives and excessive liquid phase may be formed in material calcination, so the thermal shock resistance and moderate…
We revisit the electronic and magnetic structure of bilayer, La${}_{3}$Ni${}_{2}$O${}_{6}$ and trilayer, La${}_{4}$Ni${}_{3}$O${}_{8}$ nickelates, in terms of detailed first-principles calculations. Through construction of an axial orbital, we show that the crystal-field splitting obtained in a single layer case, is m…
Abstract Filler materials are part and parcel for the adjustment of adhesives, in particular, their rheological and mechanical properties. Furthermore, the thermal stability of adhesives can be positively influenced by the addition of an expedient filler, with inorganic types common practice in most cases. In this stu…
There is growing interest in the design of molecules that undergo predictable self-assembly. Bioinspired oligomers with well-defined conformational propensities are attractive from this perspective, since they can be constructed from diverse building blocks, and self-assembly can be directed by the identities and sequ…
Ultrafine grained aluminum alloys have restricted applicability due to their limited thermal stability. Metalized 7475 alloys can be soldered and brazed at room temperature using nanotechnology. Reactive foils are used to release heat for milliseconds directly at the interface between two components leading to a metal…
Flexible field-emission devices (FEDs) based on reduced graphene oxide (RGO) emitters are fabricated by the thermal welding of RGO thin films onto a polymeric substrate. The RGO edges are vertically aligned relative to the substrate as a result of cohesive failure in the RGO layer after thermal welding. Even at large…
Thermal properties of humans were studied in the case where a relatively small energy harvester is placed on the body. In such a case, the human body serves as a natural heat supply for wearable thermopiles. The study shows that relevant local body properties such as skin temperature and heat flow essentially change b…
Many supramolecular motifs self-assemble into nanorods, forming the basis of the mechanical properties of supramolecular polymers. When integrated as end-caps in a bifunctional telechelic polymer, the motifs can phase segregate into the same or into another nanorod. In the latter case, a functional cross-link is forme…
The blinking statistics of numerous single silicon quantum dots fabricated by electron-beam lithography, plasma etching, and oxidation have been analyzed. Purely exponential on- and off-time distributions were found consistent with the absence of statistical aging. This is in contrast to blinking reports in the litera…
We report on the recovery of the short-range static magnetic order and on the concomitant degradation of the superconducting state in optimally F-doped SmFe(1-x)Ru(x)AsO(0.85)F(0.15) for 0.1≤x≲0.5. The two reduced order parameters coexist within nanometer-size domains in the FeAs layers and eventually disappear around…
A novel 5,10,15,20-tetra[4-(3,5-dioctoxybenzamide)phenyl]porphyrin and its transition metal complexes are reported in this paper. Their molecular structures were characterized by elemental analysis, IR spectra, 1HNMR spectra and UV-Vis spectra. Their spectroscopic properties were studied by Raman spectra, fluorescence…
Development of organo- and hydrogelators is on the rise because of their extensive applications, from advanced materials to biomedicine. However, designing both types of gelator from a common structural scaffold is challenging, and becomes more significant if transformation between them can be achieved by a simple met…
In recent years, numerous studies on electro-active polymer (EAP) actuators have been reported. One promising technology is the elaboration of electronic conducting polymer-based actuators with interpenetrating polymer network (IPNs) architecture. In this study, the synthesis and characterisation of conducting IPNs fo…
Silicon quantum dots open up the possibility for solar cells with a higher voltage than in the Si bulk but still based on crystalline Si. An upper limit of a solar cell's open circuit voltage is the splitting of the quasi-Fermi-levels under illumination. To determine this splitting, the band structure and the density…
Electron transfer dynamics in a photoactive coating made of CdSe quantum dots (QDs) and Au nanoparticles (NPs) tethered to a framework of ionic liquid functionalized graphene oxide (FGO) nanosheets and mesoporous titania (TiO(2)) was studied. High resolution transmission electron microscopy analyses on TiO(2)/CdSe/FGO…
We give an up-to-date review of the superconducting phenomena in 4-Angstrom carbon nanotubes embedded in aligned linear pores of the AlPO(4)-5 (AFI) zeolite, first discovered in 2001 as a fluctuation Meissner effect. With the introduction of a new approach to sample synthesis around 2007, new data confirming the super…
This research is a study on the degradation effects caused by seawater absorption of isophthalic polyester and vinyl ester resin employed in boat manufacture. Physical and mechanical tests of the resins were performed before and after the degradation. The results highlighted that the polyester resin is more degraded t…
In this work, hindered rotations of the BH 4 – tetrahedra in Mg(BH 4 ) 2 were studied by quasielastic neutron scattering, using two instruments with different energy resolution, in combination with density functional theory (DFT) calculations. Two thermally activated reorientations of the BH 4 – units, around the 2-fo…