Materials Literature
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Abstract We show for the first time, a novel optically written bistable cholesteric display using a simple electrode structure and reversible photo addressable azo binaphthyl chiral materials. These displays are inherently high resolution, require no drive electronics and can be made flexible.
INSITE™ catalyst technology from the Dow Chemical Company is used to produce polyolefin elastomers having low crystallinity that can be melt‐spun into fibers. DOW XLA fiber is a unique, elastic fiber that is olefin‐based and designed for durable, comfortable stretch performance with excellent heat and chemical resista…
This article investigates plasma treatment of vertically aligned multiwall carbon nanotube (CNT) films in different plasma environments for modification of surface chemistry and morphology. The surfaces of the CNTs were functionalized with a pulsed dc plasma treatment, where the power was directly applied to the nanot…
The experimental investigation of low-frequency noise properties in new materials is very useful for the understanding of the involved physical transport mechanisms. In this paper it is shown that, when contact noise is present, the experimental values of the normalized Hooge parameter show a fictitious linear depende…
Abstract The effect of sonochemical reactors (SCR) technology upon the degradation of reactive yellow dye has been studied and reported here. Sonochemical reactors (ultrasound irradiation) produce strong cavitation in aqueous solution causing shock wave and reactive free radicals by the violent collapse of the cavitat…
Phase transitions in thin epitaxial films of BaTiO3 are described phenomenologically in terms of Landau potentials with sixth-and eighth-order terms. It is established that the phase diagram depends on the electrostrictive constant Q 12. The phase diagrams calculated for different values of Q 12 available in the liter…
Mn-doped CdSe nanocrystals encapsulated in carbon (Cd 1− x Mn x Se @ C) were synthesized by the one-pot RAPET (reaction under autogenic pressure at elevated temperature) approach. The nanocrystal core was 27–51 nm encapsulated by a 9–18 nm carbon shell, as evidenced from electron microscopic analysis. The efficient re…
Transformers are normally designed and built for utilizing at rated frequency and prefect sinusoidal loads. Supplying non-linear loads by transformer leads to higher losses, early fatigue of insulation, and reduction of the useful life of transformer. To prevent these problems rated capacity of transformer supplying n…
To identify the chemical modifications along nuclear tracks in poly(allyl diglycol carbonate) (PADC), we have made a series of Fourier transform infrared (FT-IR) measurements for films with a thickness of about 3 µm that have been exposed to C, Ne, Ar, and Fe ions in air. The amount of carbonated ester bonds lost due…
Thermoplastic polyurethane elastomer/carbon nanotubes nanocomposites were prepared by melt mixing process and the influence of surface functionalization of carbon nanotubes on the properties of the nanocomposites was investigated. Improvement of tensile modulus was observed by the addition of functionalized carbon nan…
In this work we describe the observations of structural transitions in ferronematics based on the thermotropic nematics 6CHBT (4-trans-4'-n-hexyl-cyclohexyl-isothiocyanato-benzene). The ferronematic droplets were observed in solutions of nematogenic 6CHBT dissolved in phenyl isocyanate and doped with fine magnetic par…
When a liquid drop is confined between an elastic plate and a rigid substrate, it spreads spontaneously due to the effects of interfacial forces, eventually reaching an equilibrium shape determined by the balance between elastic and capillary effects. We provide an analytical theory for the static shape of the sheet a…
In-doped SnO2 microtubes as well as Sn-doped In2O3 (ITO) nano- and microislands have been grown by thermal treatment of compacted SnO2–In2O3 powders under argon flow at 1350 °C in a catalyst-free process. The SnO2 tubes contain about 1 at. % of In, even when the In content in the starting mixture was as high as 52 at.…
Nanocrystalline metallic Pd films have been produced by thermolysis of Pd hexadecanethiolate deposited on a Si surface. The particle size was in the range of 50-60 nm based on electron and atomic force microscopy. The Pd surface produced was found to be surface-enhanced Raman scattering (SERS) active with an enhanceme…
In this paper we report the fabrication of a multivalent, cell-type specific and cytoplasmic delivery system based on single-walled carbon nanotubes. The latter were functionalized through adsorption of phospholipids terminated by biotinylated PEG chains functionalized with fluorochrome-coupled neutravidin, and subseq…
In this paper, we present quantitative analyses of the impact of Joule heating on the package level electromigration (EM) test of copper dual damascene (DD) interconnects with linewidths of 0.28 and 0.7 μm. A total of 120 samples are tested with a maximum current density of 8 MA/cm2. It is found that high test current…
The authors investigated a full sealed flat-panel light source, which is based on a triode structure with a metal mesh gate electrode and uses a carbon nanotube cold cathode. It has a flat surface luminance distribution with good uniformity, a stable luminance of 12000cd∕m2, and a luminous efficiency that was measured…
Nanostructured electronic and photonic devices include a high density of material interfaces, which can strongly impede heat conduction and influence performance and reliability. Thermal conduction through interfaces is a very mature discipline for the traditional geometry, in which the lateral interface dimensions ar…
Abstract Nanoparticles of tin oxide, doped with Ce and Y, were prepared using the polymeric precursor method. The structural variations of the tin oxide nanoparticles were characterized by means of nitrogen physisorption, carbon dioxide chemisorption, X-ray diffraction, and X-ray photoelectron spectroscopy. The synthe…
Bottom-up growth of carbon nanotubes (CNTs) and electrochemical plating approaches were combined to produce homogeneous copper/CNT composite. The measured resistivity of the copper/CNT composite at room temperature was 2.2 muOmegaldr cm. The electrical resistivity of copper/CNT composite at room temperature increases…