Materials Literature
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We present measurements of resistivity on Mo6S3I6 nanowire networks under different conditions. The room-temperature values of conductivity of as-grown nanowire networks are on the order of σ300K=0.04S∕m and show linear current-voltage characteristics, indicating that—in agreement with band structure calculations—ther…
Abstract Polydiphenylsiloxane–polydimethylsiloxane–polydiphenylsiloxane triblock copolymers were prepared by two methods. The first approach was the sequential addition of the monomers. The anionic polymerization of hexamethylcyclotrisiloxane initiated by dilithio diphenylsilanolate gave α,ω‐bis(lithio dimethylsilanol…
A novel heparin- and cellulose-based biocomposite is fabricated by exploiting the enhanced dissolution of polysaccharides in room temperature ionic liquids (RTILs). This represents the first reported example of using a new class of solvents, RTILs, to fabricate blood-compatible biomaterials. Using this approach, it is…
Here our goal is to carry out nanotube design using naturally occurring protein building blocks. Inspection of the protein structural database reveals the richness of the conformations of proteins, their parts, and their chemistry. Given target functional protein nanotube geometry, our strategy involves scanning a lib…
Metallic nanoparticles were incorporated into the core of standard telecommunication grade optical fibres. This creates a simple, yet robust, platform which can be used to investigate the properties of nanoparticles, for sensing, spectroscopy, and optical switching applications. The optical response of gold nanopartic…
We investigate laser heating of double wall carbon nanotubes deposited on surfaces and immerged in liquids as a function of laser wavelength. Observing the Raman spectrum we find that laser heating of agglomerated double wall carbon nanotubes is six times larger at 488nm than at 647nm. The wavelength dependence of the…
Abstract A new flame retardation system for epoxy molding compounds was investigated for application to semiconductor packaging. By adding a small volume of calcium borate as a flame retardant, the flammability of the epoxy molding compound decreased. The flammability was not decreased proportionally with the volume o…
We present a study of scanning Hall probe imaging on a bulk sample of the prototype giant magnetocaloric material ${\mathrm{Gd}}_{5}{\mathrm{Ge}}_{4}$ across the magnetic field-induced antiferromagnetic to ferromagnetic and the reverse ferromagnetic to antiferromagnetic transitions at $35\phantom{\rule{0.3em}{0ex}}\ma…
Mach's nicht kompliziert: Ein Titankomplex mit einem Salanliganden, der Phenylgruppen an C3 und C3′ trägt, katalysiert die enantioselektive Epoxidierung nichtfunktionalisierter Olefine mit wässrigem Wasserstoffperoxid sehr effektiv (siehe Schema); darüber hinaus war die Epoxidierung stereospezifisch. Die C3- und C3′-S…
Water-soluble multiwalled carbon nanotubes (MWNTs) with temperature-responsive shells were successfully prepared by grafting poly (N-isopropylacrylamide) (PNIPAM) from the sidewalls of MWNTs, via surface reversible addition-fragmentation chain transfer (RAFT) polymerization using RAFT agent functionalized MWNTs as the…
Abstract The effects of exposure time and vapor pressure on the crystallization behaviors of bisphenol‐A polycarbonate (BAPC) films were investigated at 25°C by using differential scanning calorimetry (DSC). Double melting peaks were observed for various BAPC samples after vapor‐induced crystallization. The low temper…
We report room-temperature stimulated emission in single CdS nanoribbons obtained through Au-catalyzed physical evaporation route. These ribbons have single-crystal structures and uniform rectangular cross sections and grow along the [100] direction. The ribbons show good waveguide/cavity properties under local optica…
The complex quaternary Ti-35Nb-7Zr-5Ta orthopedic alloy has been successfully deposited from a powder feedstock consisting of a blend of elemental titanium, niobium, zirconium, and tantalum powders, using the laser engineered net-shaping (LENStrade mark) process. In the as laser-deposited form, these alloys exhibit a…
In this study, a novel concept is proposed for molecular electronics that uses vertically aligned multiwall carbon nanotubes as nonvolatile memory elements. Nanotubes grown on a patterned substrate may be opened by partially deleting the outer molecular layer or layers, so that the inner core is able to move along the…
A highly conductive bismuth oxide/ceria bilayer electrolyte was developed to reduce solid oxide fuel cell (SOFC) operating temperatures. Bilayer electrolytes were fabricated by depositing a layer of Er0.2Bi0.8O1.5 (ESB) of varying thickness via pulsed laser deposition and dip-coating on a Sm0.2Ce0.8O1.9 (SDC) substrat…
The predicted static and dynamical properties of a recently reported 6H polymorph of diamond based on first-principles electronic structure calculations are reported. Although 6H diamond is less stable than the cubic 3C phase, it is found to exhibit similar mechanical properties. The hardness predicted using a semiemp…
Abstract The thermal and rheological behaviors of cyclic butylene terephthalate (CBT) were studied with differential scanning calorimetry (DSC) and plate–plate rheometry, respectively. DSC scans were taken at different heating rates. The related first‐heat thermograms indicated crystallization and melting of the resul…
Plasma-based ashing of photoresist masks after pattern transfer is a common processing step in the fabrication of integrated circuits. In this work we investigated damage mechanisms of nanoporous ultra low k (ULK) materials with different overall porosities due to the ashing process. Oxygen-, nitrogen- and hydrogen-ba…
Facile, cost-effective, and manufacturable techniques to create single-nanowire based devices with good electrical interconnects is demonstrated by combining template directed electrodeposition, magnetic assembly, and a post-annealing in a reducing environment. Nickel nanowires with a diameter of approximately 30 nm w…
The microstructural evolution during the uniaxial compression of an as-deposited bulk nanocrystalline (nc) Ni–Fe (average grain size d≈23nm) at ambient temperature was investigated by the high-energy x-ray diffraction (HEXRD) and the transmission-electron microscopy (TEM). HEXRD measurements indicated that the grain g…