Materials Literature
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A layer-by-layer (LBL) assembly approach has been developed to synthesize ZnO nanorod-based hybrid nanomaterials such as ZnO/CeO 2, ZnO/CdS, and ZnO/Ag on ZnO nanorod templates at room temperature. The morphology, structure, and composition of the ZnO nanorod-based hybrid nanomaterials have been characterized by trans…
The thermodynamics of adsorption of light alkanes and alkenes (${\text{CH}}_{4}$, ${\text{C}}_{2}{\text{H}}_{6}$, ${\text{C}}_{2}{\text{H}}_{4}$, ${\text{C}}_{3}{\text{H}}_{8}$, and ${\text{C}}_{3}{\text{H}}_{6}$) in single-walled carbon nanotube bundles is studied by configurational-bias grand canonical Monte Carlo s…
We present an in-depth electrical characterization of contact resistance in carbon nanostructure via interconnects. Test structures designed and fabricated for via applications contain vertically aligned arrays of carbon nanofibers (CNFs) grown on a thin titanium film on silicon substrate and embedded in silicon dioxi…
A PTFE latex, with particles in the submicrometer size range, was employed as seed in the emulsifier-free emulsion copolymerization of two mixtures of acrylic and methacrylic comonomers to obtain PTFE-based core−soft shell nanoparticles. Stable latexes were obtained. By appropriately choosing the ratio between the com…
Selective catalytic reduction (SCR) of NOx by NH3 is under intensive development as a technology to enable diesel engines to meet stringent NOx emission regulations. Cu/zeolite SCR catalysts are leading candidates because of their ability to catalyze NOx reduction at the low temperatures encountered on many diesel veh…
Boron (B) doping into nanocrystalline-silicon (nc-Si) particles was achieved by cosputtering of Si chips/B chips/silica disk targets and subsequent annealing at 1100 °C. The average diameter of B-doped particles was less than 4.3 nm, and the content of B was about 14.3 at. %. The observation of EELS spectrum of B-K ed…
Abstract In this research report, we explore the emerging field of stable pentaorganosilicates, with the aim to show the development from transient species to stable and configurationally rigid analogues that may find application e.g. as novel chiral auxiliaries or in chiral ionic liquids.
This article reports the covalent capture of self-assembled gel-phase materials using alkene metathesis. Gels assembled from a gelator functionalized with peripheral alkene groups were reacted with Grubbs' second generation catalyst, added as a solution to the top of the gel and allowed to diffuse into the material fo…
A crystalline all-oxide microelectromechanical system is presented. A suspended SrTiO3(001) cantilever is employed as flexible substrate for the deposition of epitaxial transition-metal oxide films. A strain generator device for oxide films is thus demonstrated, changing the conductivity of an overgrown epitaxial (La,…
The pursuit of improved fuel economy is becoming an increasingly important objective for automotive manufacturers. The field of thermo-electrics is highlighted as a promising technology. The figure of merit, Z is the primary measure of the effectiveness of a thermo-electric material, and the values now being offered b…
A possible path for fabricating three-dimensional metamaterials with curved geometries at optical and infrared frequencies is to stack flexible metamaterial layers. We have fabricated highly uniform metamaterials at terahertz frequencies on large-area, low-stress, free-standing 1 μm thick silicon nitride membranes. Th…
Abstract Carbon black (N‐330), organically modified nanoclay (NC) based ternary, particulate nanocomposites comprising of epoxidized natural rubber matrix having 25 mol% of epoxy group (ENR‐25) were prepared in an open two‐roll mill. Investigations of cure characteristics, dynamic mechanical, tensile, thermal, and mor…
We report results of extensive experimental and numerical studies of the anisotropy of water drops deposited on single rectangular posts of mesoscopic size sculpted on different materials. Drops of different volume deposited on the top face of the posts assume an elongated shape along the post direction. Systematic in…
The author proposes the methodology of transformation optics in orthogonal coordinates to obtain the material parameters of the transformation media from the mapping in orthogonal coordinates.Several examples are given to show the applications of such a methodology by using the full-wave simulations.
A simple novel method for preparing multiwalled carbon nanotubes/montmorillonite (MWNTs/MMT) hybrids has been established through mixing pristine MWNTs in MMT aqueous dispersion. The principle of this method is based on the formation of stable dispersion containing both MWNTs and MMT in water, which results from stron…
Graphene, believed to be a semimetal so far, might actually be an insulator when suspended freely.
The regulated emissions of NOx and particulates from diesel engines are low enough that in many cases the emissions levels cannot be met by system architectures based on improved in-cylinder combustion technologies alone. Some of the emissions reduction has to be achieved with aftertreatment systems. Thus, diesel engi…
Gold nanorod (AuNR)-assisted photothermal therapy has emerged as a viable method for selective killing of cancer cells and shows promise for tumor destruction in vivo. This study examined the distribution of AuNR conversion expected to occur during photothermal therapy in vivo. Tissue-like phantoms were prepared with…
Spin-charge-lattice coupling mediated by multimagnon processes is demonstrated in multiferroic BiFeO3. Experimental evidence of two- and three-magnon excitations as well as multimagnon coupling at electronic energy scales and high temperatures are reported. Temperature dependent Raman experiments show up to five reson…
We present a method of self-assembly of densely packed and aligned bilayer ZnO nanorod arrays in a hydrothermal synthesis process. The alkali hydrothermal environment first induced the growth of hydrotalcitelike zincowoodwardite plates, which provide a lattice-matched surface for the self-assembly of ZnO nanorod array…