Materials Literature
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Abstract A new dibenzo-TTF (DBTTF) derivative directly connected with amino groups has been designed and synthesized as a stable molecule in air with enhanced electron-donating ability compared with that of DBTTF. A crystal structure analysis of its TCNQ complex has shown that intermolecular hydrogen bondings are form…
Abstract Summary: Superhydrophilic modification of poly(propylene) and poly(ethylene terephthalate) films' surfaces was realized by the UV‐initiated surface photografting of a N ‐vinyl pyrrolidone/ N , N ′‐methylenebisacrylamide inverse microemulsion. AFM characterization of the treated films' surface revealed that it…
The magnetocaloric effect (MCE) of polycrystalline and single crystalline ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{MnO}}_{3}\phantom{\rule{0.3em}{0ex}}(0.16\ensuremath{\leqslant}x\ensuremath{\leqslant}0.19)$ is investigated. A structural transition in close proximity to the magnetic transition has li…
Abstract In this article, different applications of Monte Carlo simulations in scanning electron microscope (SEM) critical dimension (CD) metrology are presented. A first field of application is the analysis of image formation that leads to functional descriptions of secondary electron (SE) signal profiles. From this,…
A homeotropic liquid crystal (LC) gel with submicron domain size is fabricated and its phase-only modulation property evaluated. The LC gel is highly transparent in the voltage-off state and exhibits pure phase modulation before light scattering occurs. Compared to a nanosized polymer-dispersed liquid crystal (nano-PD…
Microstructures and electrical properties of lead zirconate titanate (PZT) thick films made by using a screen-printing laser transfer method have been studied. The PZT thick-film elements were first screen printed on a sapphire substrate and sintered at 1150to1250°C. Then they were bonded to a target substrate such as…
The Co(Cr) and Cr(Co) solid-solution nanocapsules have been fabricated by arc discharge in atmosphere of argon and hydrogen. The structure and composition of the nanocapsules of two types are investigated by means of x-ray diffraction, high-resolution transmission electron microscope, and energy dispersive spectroscop…
Abstract Cationic cyclo(dipeptide) gelators 10mimClO4, 11mimClO4, and 11pyClO4 were synthesized as templates for the sol–gel transcription reaction of alkoxysilanes. They were able to cause physical opaque gels in alcohols such as methanol, ethanol, and 1-propanol. Three-dimensional fibrous networks responsible for ph…
Abstract The inelastic mean free path (IMFP) of electrons in solids is an important parameter needed for quantitative applications of electron spectroscopies: X‐ray photoelectron spectroscopy and Auger electron spectroscopy (AES). The IMFP values published for compounds or alloys are rather limited, and in general cas…
To make the specific features of nanocrystalline silicon (nc-Si) cold cathode clear, its emission characteristics are investigated in low vacuum and atmospheric pressure. The experimental nc-Si diode is composed of a thin Au film, a nanocrystallized polysilicon layer, an n-type silicon wafer, and a back contact. It is…
Point defects in fumed $\ensuremath{\sim}7\text{\ensuremath{-}}\mathrm{nm}$-sized silica nanoparticles have been studied by $K$- and $Q$-band electron spin resonance (ESR) following $10\text{\ensuremath{-}}\mathrm{eV}$ irradiation used to photodissociate H from passivated defects. Various types of ESR-active point def…
Abstract Reliable algorithms for simulation of electron trajectories in solids are needed for quantification of Auger‐electron spectroscopy, particularly for the determination of the backscattering factor (BF). The computational schemes for this purpose should be universal, i.e. applicable to any solid for energies do…
Abstract PENELOPE is a general‐purpose Monte Carlo code system for the simulation of coupled electron and photon transport. It is applicable to all materials and covers the energy range from 50 eV up to 1 GeV. The code implements the most reliable cross sections and relaxation data available for the elements. Cross se…
Abstract The initial quality and stability in air of InAs(001) surfaces passivated by a weakly‐basic solution of thioacetamide (CH 3 CSNH 2 ) is examined by XPS. The S‐passivated InAs(001) surface can be modeled as a sulfur‐indium‐arsenic ‘layer‐cake’ structure, such that characterization requires quantification of bo…
It's a wrap: Self-assembling peptide tubes are wrapped in polymer sheaths by using efficient graft-from or attach-to routes (see scheme). The properties of the peptide tubes are tuned by the polymer sheath, and the resulting peptide–polymer hybrids could prove useful for various future applications.
Experimental results are compared with a theoretical analysis concerning wall effects on the symmetric mode resonance frequency of millimeter-sized air bubbles in water. An analytical model based on a linear coupled-oscillator approximation is used to describe the oscillations of the bubbles, while the method of image…
Analytic expressions for the cutting line number $\ensuremath{\mu}$ of a single-wall carbon nanotube (SWNT) which gives van Hove singularities for optical transitions are found to exist around $\ensuremath{\mu}=N∕3$ for most SWNTs, where $N$ is the number of cutting lines of the SWNT. However, for metal-2 SWNTs, the c…
Abstract A commercial grade nylon‐6/clay nanocomposite (from Ube industries) is subjected to a large‐scale simple shear orientation process and the resulting morphology is investigated. Both the orientation and aspect ratio of nanoclays, which can be altered by the simple shear process, are studied. The incorporation…
The short-time dynamic properties of colloidal particles in quasi-two-dimensional geometries are studied by digital video microscopy. We demonstrate experimentally that the effective-two-dimensional physical quantities such as the dynamic structure factor, the hydrodynamic function, and the hydrodynamic diffusion coef…
Abstract Secondary fluorescence across phase boundaries is a difficult problem encountered in several electron probe microanalysis (EPMA) situations: diffusion couples; small phases enclosed in a larger phases; eutectic intergrowths; and thin films. In some cases, it is possible to construct nondiffused couples and to…