Materials Literature
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We extend the beam propagation method to calculate light propagation in reflective liquid crystal displays. The effect of diffraction on the optical performance of high-resolution liquid-crystal-on-silicon devices is investigated. The light efficiencies are simulated with respect to the pixel pitch for the vertically…
The utilization of surface engineered materials in various engineering fields has undergone a tremendous increase in recent years, and the need for proper surface engineering of materials has thus increased enormously. However, the knowledge acquired in conventional heat treatment processes, cannot be applied to surfa…
We report investigations of CdS-CdSe-CdS (core-well-shell) nanostructures by photoluminescence (PL) spectroscopy at temperatures between 77 and 300 K. PL intensity measurements show a transition from a pump-rate-limited regime at low excitation intensity to the range determined by a spontaneous emission lifetime at a…
We investigated the effects of water molecules in CsLiB 6 O 10 (CLBO) crystals on UV optical properties. Our results show that long-term heat treatment is necessary to adequately remove water molecules from inside the crystal. The reducing the number of water molecules contained in the crystal improves the transmittan…
Performance characteristics were summarized of two molten salt based fusion power plants. One of them is to burn spent fuel actinides, the other is to burn U238. Both power plants produce output energy larger than a fusion power plant would normally produce without including actinides. Additional features, obtainable…
Abstract Anwendungen von neuen keramischen Nanofiltrationsmembranen in wässrigen und organischen Lösungsmitteln werden vorgestellt. Kommerziell verfügbare, wässrige Anwendungen sind z. B. die Aufbereitung von gefärbten Waschwassern aus der Textilveredelung. Die Benetzbarkeit der Membranporen für organische Lösemittel…
Seventeen cotton samples with small-to-moderate stickiness contamination were created by mixing sticky cottons with non-sticky cottons, and then processed through ring and rotor spinning. Trehalulose contents ranged from 0.002% to 0.034% of the fiber weight (corresponding to 1.8% and 16.8% of the total sugars), while…
Two series of novel diarylethenes, the first containing one and the second two acetyl protected thiol groups, were synthesised in two and three steps from an easily available known intermediate. Newly synthesised compounds present ideal examples of model substrates for photochromic studies on metal surfaces.
The synthesis of 2-(2′-hydroxy-3′-allylphenyl)-4,4-dimethyl-2-oxazoline, H-Allox (3), and lanthanide tris chelate complexes, mer-Ln(Allox) 3 (Ln = La (4), Ce (5), Sm (6), Er (7), and Y (8)), derived from it are reported. A six-coordinate mer geometry without alkene coordination was confirmed in the solid state by X-ra…
Synthetic saponites prepared at atmospheric pressure and at 90 °C within 20 hours with Mg 2+ , Zn 2+ , Ni 2+ , Cu 2+ , and/or Co 2+ in the octahedral sheets have been thermally treated under reducing and nonreducing conditions with or without the presence of steam. The thermal stability of saponite in air is investiga…
Abstract The mono‐nitrated meso ‐tetraphenylporphyrin (TPP) complex 2 could be readily functionalized on the substituted pyrrole ring with yields of up to 83%. These transformations were achieved via aromatic substitution with carbanions generated from diverse functionalized compounds containing different leaving grou…
The temperature dependence of o-Ps lifetime in the pores calculated from extended Tao-Eldrup model was compared to the experimental data, collected for a set of silica gels synthesized using the polymer template technique. For the sample with average pore radii 2.0 nm rather good agreement between the model and experi…
This paper presents a characterization of a crosslinked EVA residue (EVA-c) from expanded sheets used in the shoe industry and post-consumer urban-waste polyethylenes regarding their molecular (FTIR), mechanical (tensile and impact tests), morphological (SEM), thermal (DSC, TGA) and dynamic-mechanical (DMTA) propertie…
We report the basic characteristics of super resolution near-field structure (Super-RENS) media at a blue laser optical system (laser wavelength 405 nm, numerical aperture 0.85). Using a novel write once read many (WORM) structure for a blue laser system, we obtained a carrier-to-noise ratio (CNR) above 33 dB from the…
In this work Carbon nanotubes have been synthesized by arc discharge in open air. A TIG welding ac/dc inverter was used as the power source for arc discharge. During each run of the arc discharge based synthesis, the anode was a low purity (approximately 85% C by weight) graphite rod. The effect of varying the atmosph…
Abstract We propose and demonstrate a nano‐structured alignment layer which is capable of producing pretilt angles of any value from 0° to 90°. This alignment layer is robust, stable, reliable and highly manufacturable. We utilized these alignment layers to obtain ∼45° pretilt angles to make a pi‐cell which is in the…
Porous GaAs (100) and (111) substrates with nanostructured (∼10 nm) surface profiles are obtained in which pores branching in the 〈111〉 direction form a dense network with a volume density of ∼60% under the surface at a depth of ∼(50–100) nm. The surface of the substrates and the structure of GaSb layers grown on thes…
The thermal transformation of spin-cast thin films to produce nanoporous low-k dielectric layers has been investigated using polymethysilsesquioxane (PMSSQ) for the low-k matrix and polymethylmethacrylate-co-dimethylaminoethylacrylate (PMMA-co-DMAEMA) as the porogen which is volatilized to leave nanopores in the matri…
The paper describes the vector magnetic characteristic analytical method using the vector magnetic hysteretic engineering model. By this method, various kinds of vector magnetic properties, for example vector hysteretic loop, coercive force, magnetic power loss, vector behavior of magnetic flux density B, and magnetic…
Surface relief grating formation was investigated for a series of azobenzene containing polymers with varying molecular weight. The polymers were obtained by a combination of an atom transfer radical polymerization of trimethylsilylethyl methacrylate and subsequent polymeranalogous introduction of the azobenzene chrom…