Materials Literature
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<div class="section abstract"><div class="htmlview paragraph">The challenge for decreasing the emissions of compression ignition engines now remains mainly on NOx control. If the Lean NOx Trap (LNT) and Selective Catalytic Reduction by Urea (Urea-SCR) are very efficient, their extra-cost and management are…
Abstract Abstract. Reaction of commercially available tetraethylene glycol with different alkaline earth metal halides affords tetraethylene glycol complexes with different coordination numbers at the metal ion and structural features; depending on the ionic radius of the metal ion, one or two ligand molecules will be…
We report a single molecule detection scheme to investigate excitation spectra of single emitters at room temperature. We demonstrate the potential of single emitter photoluminescence excitation spectroscopy by recording excitation spectra of single CdSe nanocrystals over a wide spectral range of 100 nm. The spectra e…
A dip-shaped anomaly appearing in the infrared spectrum of charge-transfer organic complexes has been investigated. The anomaly appears at approximately the same frequency (\ensuremath{\sim}2700 cm${}^{\ensuremath{-}1}$), irrespective of light polarization as well as a composition of the complex, when the compounds un…
Silver nanoshells on polystyrene microspheres were used as substrates for surface-enhanced resonance Raman scattering (SERRS). SERRS mapping was recorded from isolated nanoshells coated with Nile blue (NB) and immobilized on gold films and silicon surfaces. Variations in the position and the shape of the ∼ 590 cm –1 S…
Abstract A broadband dielectric spectroscopic (BDS) study of poly(2,5‐benzimidazole) revealed three sub‐glass relaxations and the manner in which the time scales of these local molecular motions shift with annealing temperature and time. Also issuing from the BDS studies was a trend in the degree of connectivity of ch…
We study the formation of complex pattern geometries and beam shapes in diffraction-based extreme ultraviolet interference lithography. In particular, we demonstrate numerically as well as experimentally the potential of interfering multiple beams with well-controlled relative phase relations for the fabrication of hi…
<div class="section abstract"><div class="htmlview paragraph">The NO</div><div class="htmlview paragraph"> reduction in an ammonia SCR converter has been simulated by a 1D+1D model for a single representative channel to parametrically study the characteristics of the system under typical operat…
Heat removal became crucial issue for continuing progress in electronic, optoelectronic and photonic industries. Carbon allotropes and derivatives occupy a unique place in terms of their ability to conduct heat. The room-temperature thermal conductivity of carbon materials spans an extraordinary large range from the l…
In order to combine the advantages of fluorescence and surface-enhanced Raman spectroscopy (SERS) on the same chip platform, a nanostructured gold surface with a unique design, allowing both the sensitive detection of fluorescence light together with the specific Raman fingerprint of the fluorescent molecules, was est…
Bismuth-telluride-based alloy thin film thermoelectric generators have excellent thermoelectric performance at room temperature. A traditional method of thermal evaporation is used to deposit thin films of bismuth-telluride-based alloys. The composition of the thin films of bismuth-telluride-based alloys is controlled…
Amphiphilic multiwalled carbon nanotube polymer hybrids were prepared by functionalization of multiwalled carbon nanotubes (MWCNTs) with different loads of poly(vinylbenzyl)triethylammonium chloride (PVBTEAC) by surface initiated polymerization followed by quaternization. The resulting hybrids were characterized by Fo…
Abstract By calculating the surface tensions of the components, composites with innovative thermodynamically induced self‐assembled electrically conductive networks were designed, prepared and investigated. Carbon black (CB) was added into a ternary blend system comprised of poly(methyl methacrylate) (PMMA), ethylene–…
The effects of hydrophobicity of monomers on the structures and properties of 1,3:2,4-dibenzylidene-D-sorbitol (DBS) organogels and nanostructured polymers prepared by templating the self-assembled organogels were investigated in this study. Hydrophobic styrene (St), hydrophilic methyl (methacrylate) (MMA), and their…
Abstract Ethylene/1‐olefin copolymers made with multiple‐site‐type catalytic systems typically have broad molecular weight distribution (MWD) and chemical composition distribution (CCD) because each site type produces polymer chains with distinct average chain microstructures. In this work, the simultaneous deconvolut…
We study the correlation between crystalline structure and superconducting properties in Na-doped Ca${}_{1\ensuremath{-}x}$Na${}_{x}$Fe${}_{2}$As${}_{2}$ single crystals for three chemical compositions ($x$ = 0.5, 0.6, 0.75). We find the maximum superconducting transition temperature ${T}_{c}$ \ensuremath{\sim} 33.4 K…
We compare two dendrimers, which contain the same luminescent chromophores but differ in dimensionality, for the detection of an explosive analyte via PL quenching. Each dendrimer has first generation biphenyl dendrons with 2-ethylhexyloxy surface groups but differ in the core units. One dendrimer has a bifluorene cor…
BACKGROUND: The changes in quality of cod fillets packaged in films with and without antioxidants during 12 months of frozen storage at - 20 °C were investigated in the present study. The following parameters were determined in order to study lipid hydrolysis and primary and secondary lipid oxidation in the samples du…
Abstract A series of biodegradable chitosan‐ graft ‐polylactide (CS‐ g ‐PLA) copolymers were prepared by grafting of poly( L ‐lactide) (PLLA) or poly( D ‐lactide) (PDLA) precursor to the backbone of chitosan using N , N ′‐carbonyldiimidazole as coupling agent. The composition of the copolymers was varied by adjusting…
The effects of the yttrium nitrate ( YN ) content on nitrogen doping and the electrical resistivity of SiC ceramics were investigated. The YN was found to be an effective sintering additive for the full densification of SiC ceramics by hot‐pressing. The hot‐pressed bulk samples were identified as polycrystalline zincb…