Materials Literature
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We investigate functional capabilities of large arrays of gold and silver nanorods as elements of plasmonic devices. The samples were fabricated by electron beam lithography and lift-off techniques on glass substrates. The areas patterned by the nanorods or other nanoparticles can be large, with dimensions of up to ab…
Rich polymorphism has been found in a new series of lactic acid derivatives. The length of a non‐chiral n‐alkyl chain plays an important role in changing the sequence and temperature range of phases. Except for one homologue with the shortest chain, all compounds exhibit a rather wide antiferroelectric chiral smectic…
Abstract The kinetics of interaction of benzotriazole (BTAH) with the surface of copper were studied using an electrochemical quartz crystal microbalance (EQMB) and electrochemical impedance spectroscopy (EIS). Upon injecting BTAH into the electrolyte, three regions appear in the time response of the microbalance. Reg…
The critical-dimension scanning electron microscope (CD-SEM) is an essential tool for semiconductor fabrication process control because of its high resolution and high precision. However, in ArF lithography, the CD of resist changes during CD-SEM measurement due to shrinkage caused by the electron beam irradiation. Th…
The fluorescence of CdSe/ZnS nanorods in liquid-crystal and anisotropic polymer composites is studied. A high degree of the fluorescence anisotropy is shown. It is found that a solubilizer strongly affects the CdSe/ZnS orientation, which opens new possibilities for creating electrically controlled liquid-crystal compo…
Abstract The effect of enzymatic degradation on poly( ε ‐caprolactone) (PCL) films and sponges was investigated at 37 °C using Pseudomonas lipase. Film samples were prepared by the solution casting method, while sponges were obtained by the freeze extraction method. The porosity was 17 and 60% respectively. Weight los…
The lattice vibrations of a periodic silicon crystal are simulated by a molecular dynamics simulation. The history of atomic displacements and velocities obtained is used to compute the amplitudes of all phonon modes supported by the lattice. The phonon amplitude autocorrelation coefficients are found to decay exponen…
Nanocrystalline vanadium oxide thin films have been deposited by reactive DC magnetron sputtering onto glass substrates under different processing conditions. Structural analysis and phase identification have been carried out by means of X-ray diffractometry (XRD). The surface morphologies of the different films have…
The integration of biomaterials with skin is necessary to enable infection-free access to vasculature and body cavities. Also, integrating plastics and metals with skin increases options for the reconstruction of surgical and traumatic defects and enables the permanent implantation of robotic and electronic devices. U…
In order to propose a new dilute magnetic semicoductors (DMS) other than II–VI and III–V semiconductor based DMS, magnetism of CuAlO 2 based DMS is investigated by the Korringa–Kohn–Rostoker method combined with the coherent potential approximation within the local spin density approximation and Monte Carlo simulation…
Abstract The long-term photolysis of [iPrNH3]6[Mo7O24]·3H2O in aqueous solutions at pH 5–6 is found to provide the formation of anti-tumoral [H2MoV12O28(OH)12(MoVIO3)4]6− species (1a), the core of which is a well-known ε-isomer ({ε-MoV12}) of the Keggin anion showing edge-shared MoVO6 octahedra in the arrangement of s…
Theory-inspired design of organic electro-optic materials is explored for three classes of materials: (1) chromophore/polymer composites; (2) chromophores covalently incorporated into polymers, dendrimers, and dendronized polymers; and (3) chromophores doped into chromophore-containing host materials. Correlated quant…
Urea fertilizer is a major source of nitrogen, which is one of the essential nutrients for plant growth. Due to its uncontrollable release, this chemical can be wasted easily by leaching and volatilization that can adversely cause the contamination to the environment. In this work, a controlled-release material for ur…
CaMnO 3 systems are known to exhibit excellent thermoelectric (TE) performance at high temperature in air and are, therefore, good candidates for the n-type legs of TE oxide devices. In previous studies, however, several CaMnO 3 system legs have fractured easily after the power generation test. The fractures were prob…
ZnO tetrapods have been grown on silicon substrates by chemical vapor deposition, and the effect of synthesis conditions on their morphology and size has been studied. The cathodoluminescence spectra of the tetrapods show two emissions characteristic of ZnO, in the UV and green spectral regions. Their relative intensi…
The specific heat of a liquid varies as its structure and molecular vibrational frequencies vary with the temperature. We report the magnitude of the structural or configurational part C(p,conf) for five molecular liquids by measuring their dynamic and the apparent specific heats, and find that the unrelaxed or vibrat…
We have investigated radio-frequency single-electron transistor operation of single-walled carbon nanotube quantum dots in the strong tunneling regime. At a temperature of 4.2 K and with a carrier frequency of 754.2 MHz, we reach a charge sensitivity of 2.3×10−6e/Hz over a bandwidth of 85 MHz. Our results indicate a g…
Titanium oxide thin films were prepared by pulsed-laser deposition on LaAlO3 single crystal substrate at 700 °C. Pure anatase films are obtained at high oxygen pressure (10−1 mbar), while the rutile phase is evidenced at low oxygen pressure (10−5 mbar) despite a large oxygen deficiency (O/Ti=1.75). From asymmetric x-r…
Dielectric response of the porous YCrO 3 nanoceramic has been investigated as a function of sintering temperature. Pore structure at different sintering temperatures has been studied by small-angle neutron scattering (SANS). It has been observed that overall polydispersity of pore-size distribution decreases and loss…
It is important to evaluate tritium behavior in tungsten deposition layers considering a long-term plasma operation. In this study, tungsten deposition layers were formed by deuterium or helium RF plasma sputtering. The release behavior of deuterium or helium from the layers were observed by a thermal desorption metho…