Materials Literature
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Polar oxide-based heterostructures composed of ferroelectric PbZr 0.2 Ti 0.8 O 3 and hole-doped La 0.8 Sr 0.2 MnO 3 ultrathin epitaxial films were fabricated on Nb:SrTiO 3 substrates to check the viability of all oxide-based photovoltaic (PV) nano-junctions. We observed clear diode-like behavior, yielding a rectificat…
To improve performance and reliability of integrated circuits, accurate knowledge of thermal transport properties must be possessed. In particular, reduced dimensions increase boundary scattering and the significance of thermal contact resistance. A thermoreflectance measurement can be used with a valid heat transport…
We propose a theory of ripples in suspended graphene sheets based on two-dimensional elasticity equations that are made discrete on the honeycomb lattice and then periodized. At each point carbon atoms are coupled to Ising spins whose values indicate the atoms local trend to move vertically off-plane. The Ising spins…
A Dynamic drop test (DDT) has been employed for hydrophobicity evaluation, which has proven the occurrence of different discharge phenomena in relation to the hydrophobicity variation. In this paper, based on DDT method, the characterization of surface discharges, including the discharge magnitude, pulse number, adjac…
Boron subphthalocyanines have been explored as functional materials in a wide range of organic electronic applications including organic light-emitting diodes and organic solar cells. They have only, however, been studied as small molecules; there have been no reports of boron subphthalocyanine polymer(s) in the liter…
Two for the price of one! The diazaperopyrenium dication behaves dichotomously in a homo- and heterophilic manner, allowing for complexation with itself and a variety of π-electron-rich donors. This chameleonic characteristic, in addition to its electronic properties, leads to self-assembled nanowires in the solid sta…
Volume is indexed by Thomson Reuters CPCI-S (WoS).The design and market forces driving the never-ending quest for improved materials for aerospace vehicles include lower weight, improved corrosion and fatigue resistances and lower acquisition and operating costs. The application of composite materials to commercial ai…
Ausgelenkt: Eine neuer Blei-freier Bismutperowskit wurde bei Umgebungsdruck in der polaren Pmc21-Struktur gebildet. Messungen liefern Beweise für Ferroelektrizität und Piezoelektrizität. Das Material zeichnet sich durch eine Rotation der Polarisationsrichtung abseits der [111]p-Achse aus und ist somit für das Design v…
Abstract Boron doped and undoped poly(vinyl) alcohol/zirconium‐yttrium acetate (PVA/Zr‐Y) nanofibers were prepared by electrospinning using PVA as a precursor. The effect of boron doping was investigated in terms of solution properties, morphological changes and thermal properties. The effect of boron doping on calcin…
Abstract In this study, thermoplastic polyurethane (PU) composites were successfully prepared from waste cotton fabric (WCF) and reclaimed PU foam derived from the shoe manufacturing industry through melt mixing. A pan‐mill‐type mechanochemical reactor made in our laboratory was applied to determine the mechanochemica…
Abstract The use of polypropylene (PP)‐layered silicate nanocomposite has attracted great interest in the polymer industry over the last years. On one hand, PP is widely used in many fields of applications because of good performance and cost. On the other hand, the major advantage of layered silicate nanofiller in th…
A shuttle into cells: A modular [email protected] system (see figure), comprising a gadolinium- containing nitride cluster fullerene as an imaging component, an address module (nuclear localization sequence) and a transmembrane carrier peptide, is prepared, and its facile intracellular localization is proven by in vit…
Abstract “Grafting from” surface‐initiated nitroxide‐mediated radical polymerization (SI‐NMRP) techniques were used to synthesize poly[styrene‐co‐(maleic anhydride)] copolymer brushes from the Fe3O4 surfaces. Well‐defined polymer chains were grown from the Fe3O4 surfaces to yield particles with a Fe3O4 core and a poly…
Due to remarkable advances in colloid synthesis techniques, systems of squares and cubes, once an academic abstraction for theorists and simulators, are nowadays an experimental reality. By means of a free minimization of the free-energy functional, we apply fundamental measure theory to analyze the phase behavior of…
In this paper, a new analytical method is proposed for Ohmic and core losses calculation in induction motors under broken bar fault. In this method, new coefficients are introduced to consider non-sinusoidal distribution effects of flux density due to bar breakage. Then, core losses of induction motors in this conditi…
Formation energies of intrinsic defects in rhombohedral and cubic LaAlO${}_{3}$ were calculated using a first-principles projector augmented wave method based on the density functional theory. Defect energetics of single-atom vacancies, partial and full Schottky defects, and antisite cationic defects were investigated…
This paper addresses the salt migration during phase transition of cooling water in the icicle growth period. This paper contains three parts, first, application of Fick's law in salt migration process; second, salt concentration measurement of icicles in artificial climate chamber; third, ice flashover experiments du…
Abstract The microstructure and thermal and mechanical properties of poly(lactic acid) (PLA) fibers after thermal treatment under both taut and free conditions at different temperatures were studied by differential scanning calorimetry, wide‐angle X‐ray diffraction, microscopy with polarized light, an acoustic method…
Vier polymorphe Formen eines einkernigen FeII-Komplexes mit einer N4S2-Koordinationsumgebung wurden charakterisiert. Zwei davon zeigen einen über vier Positionen kooperativen Spin-Crossover (SCO). Die Gegenwart von S-Donoratomen in SCO-aktiven Verbindungen ist ungewöhnlich, und weitere Untersuchungen von FeII-Komplexe…
The influence of Li impurities on the phase transition sequence of KNbO${}_{3}$ is investigated using an atomistic model with parameters fitted to first-principles calculations. We find that the replacement of K by Li ions increases local electric dipoles due to a large Li off-centering along [001] directions. Li dopi…