Materials Literature
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Self-assembled-monolayer (SAM) molecular junctions (MJs) constitute a promising building block candidate for future molecular electronic devices. Transport properties of SAM-MJs are usually calculate using either the phenomenological Simmons model, or a fully-coherent transport theory, employing the SAMs periodicity.…
We use a previously proposed theory for the temperature dependence of tunneling magnetoresistance to shed light on ongoing efforts to optimize spin valves. First we show that a mechanism in which spin valve performance at finite temperatures is limited by uncorrelated thermal fluctuations of magnetization orientations…
The effects of using maleated poly[styrene‐b‐(ethylene‐ co ‐butylene)‐b‐styrene] triblock copolymer ( SEBS‐g‐MAH ) and unmodified SEBS ( unSEBS ) on the phase morphology and mechanical properties of immiscible polymer blends of polyamide‐6 (PA‐6) and polycarbonate (PC) are investigated. Different binary, ternary, and…
Polycrystalline samples of DyCo 2 , HoCo 2 , ErCo 2 and their solid solutions Dy 1-x Ho x Co 2 , Dy 1-x Er x Co 2 , Ho 1-x Er x Co 2 have been studied using X-ray diffraction analysis, heat capacity and magnetic measurements. The X-ray diffraction performed at room temperature allowed to reveal that all solid solution…
Solute-solvent electronic structure interactions of iron porphyrin at very low concentration in dichloromethane (CH2Cl2) liquid solution are reported. Two iron porphyrin complexes are investigated here-iron octaethylporphyrin chloride (FeOEP-Cl) and iron tetraphenylporphyrin chloride (FeTPP-Cl)-using X-ray absorption…
The NiTi alloys are generally considered hard‐to‐deform materials when processing by equal‐channel angular pressing (ECAP) at room temperature. Nevertheless, it is shown by experiment that a NiTi alloy may be successfully processed by ECAP for up to two passes using a core–sheath configuration. Three‐dimensional finit…
Subwavelength nanostructures are considered as promising building blocks for antireflection and light trapping applications. In this study, we demonstrate excellent broadband antireflection effect from thin films of monolayer silica nanospheres with a diameter of 100 nm prepared by Langmuir-Blodgett method on glass su…
The data on the synthesis and physicochemical and photo- and electroluminescent properties of carbochain linear polymers containing ions of rare-earth metals bound via chemical or coordination bonds to the polymer chain are summarized. The effects of the ligand environment at lanthanide atoms and the structures of the…
Structural, electronic and magnetic properties of Sr2FeOsO6 have been revisited by using the first-principle calculations. Semiconducting behavior is reproduced. The band gap is 0.09 eV from generalized gradient approximation (GGA) and 0.30 eV by considering both SOC and U, a bit larger than the experimental observed…
Abstract Poly(3-hydroxybutyrate) [P(3HB)] nonwovens were obtained from polymers enriched with nucleants using the melt-blown technique. The most important physico-mechanical parameters, susceptibility to hydrolytic degradation (in neutral and alkaline medium) and to biodegradation, were analysed for the obtained nonwo…
Here, wire-framed Au nanobundles (WNBs), which consist of randomly oriented and mutually connected Au wires to form a bundle shape, are synthesized. In contrast to conventional nanoparticles (spheres, rods, cubes, and stars), which exhibit nanostructure only on the surface, cross-sectional view image shows that WNBs h…
Logic with Gold Clusters. Gold nanoclusters can be used for the development of hierarchical logic structures. This is based on the reversible change in the fluorescence of the clusters at different pH of the medium, its temperature and metal ion concentration dependence.
Understanding the fundamental mechanisms of electrical degradation or instability in organic semiconductor devices is a key step toward their rational design for higher performance and more demanding applications. Here we report the successful suppression of the conductivity fade phenomenon that occurs in doped conduc…
We report the synthesis of single-phase Bi3O2S3 sample and confirm the occurrence of bulk superconductivity with transition temperature at 5.8 K. The Bi3O2S3 superconductor is categorized as typical type-II superconductor based on the results of both temperature and magnetic field dependences of magnetization. Hall co…
Developing methods to detect and repair damage in polymers is an active area of research. Many of the previously described methods suffer from the lack of long-term stability of the reagents, which are typically preincorporated into the polymer. Also, they tend to be specific to certain types of polymeric materials. I…
Multifunctional pillared materials are synthesized by the intercalation of cage‐shaped adamantylamine (ADMA) molecules into the interlayer space of graphite oxide (GO) and aluminosilicate clays. The physicochemical and structural properties of these hybrids, determined by X‐ray diffraction (XRD), Fourier transform inf…
Bacterial cellulose (BC) is often regarded as a prime candidate nano-reinforcement for the production of renewable nanocomposites. However, the mechanical performance of most BC nanocomposites is often inferior compared with commercially available polylactide (PLLA). Here, the manufacturing concept of paper-based lami…
Polymeric scaffolds serve as valuable supports for biological cells since they offer essential features for guiding cellular organization and tissue development. The main challenges for scaffold fabrication are i) to tune an internal structure and ii) to load bio-molecules such as growth factors and control their loca…
Solvent vapor annealing (SVA) is originally developed to attain equilibrium nanostructures from microphase-separated block polymer thin films. Interestingly, by carefully choosing a solvent vapor that can selectively mobilize the amorphous chains of a semicrystalline polymer while preserving the integrity of its cryst…
This review involves discussion and analysis of the main advantages and trends of the molecular design of branched triphenylamine-based oligomers and their application in modern organic electronics devices, such as organic solar cells, light-emitting diodes, thin-film field-effect transistors, and sensors.