Abdessamad Grirrane、Antonio Pastor、Agustı́n Galindo 等 6 位作者2003-01-23Chemical Communications
The compound [Mn(tda)(bipy)] (tda = S(CH2COO)2(2-)) features the first structurally characterized tetra-carboxylate dimanganese antiferromagnetic system with 'copper acetate' core; the binuclear units, completed by bipyridine chelates, are doubly chained by the tda anions that adopt an unprecedented mu,mu'-eta1,eta1,e…
Crystal structures of chemical compoundsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Osamu Hanaizumi、Kazutaka Ono、Yuichi Ogawa2003-01-23Applied Physics Letters
We observed a photoluminescence (PL) spectrum at room temperature that had a peak with full width of half maximum (FWHM) of 0.38 eV near the band gap energy of 3.2 eV from a Si:SiO2 sputtered film without annealing. Blue-light emission could be seen by the naked eye. A low-intensity PL peak with FWHM of 0.20 eV was al…
Semiconductor materials and devicesThin-Film Transistor TechnologiesSilicon Nanostructures and Photoluminescence
Yasufumi Enami、G. R. Meredith、N. Peyghambarian 等 5 位作者2003-01-23Applied Physics Letters
An approach to utilizing electro-optically (EO) active polymers in hybrid waveguide structures is described and demonstrated. Buried sol-gel waveguides provide a robust basis for planar integrated circuitry, suitable for coupling with optical fibers. By selectively exposing the core of a buried channel guide, overcoat…
Photonic and Optical DevicesNonlinear Optical Materials ResearchPhotorefractive and Nonlinear Optics
Srikanta Patra、Biplab Mondal、Biprajit Sarkar 等 5 位作者2003-01-23Inorganic Chemistry
The reaction of mononuclear ruthenium precursor [Ru(II)(acac)(2)(CH(3)CN)(2)] (acac = acetylacetonate) with the thiouracil ligand (2-thiouracil, H(2)L(1) or 6-methyl -2-thiouracil, H(2)L(2)) in the presence of NEt(3) as base in ethanol solvent afforded a trinuclear triangular complex Ru(3)(O,O-acetylacetonate)(3)(mu-O…
Metal complexes synthesis and propertiesMagnetism in coordination complexesMetal-Catalyzed Oxygenation Mechanisms
H. Shariatpanahi、H. Nazokdast、Mohammad Hemmati2003-01-23Journal of Applied Polymer Science
Abstract Simple blends with different viscosity ratios of the components as well as compatibilized blends varying both in type and content of the compatibilizers were used to study the relation between the interfacial tension and the dispersed‐phase particle size for PP/PA6 (80/20 wt %) blends in this work. Four compa…
Polymer crystallization and propertiesPolymer Nanocomposites and Propertiesbiodegradable polymer synthesis and properties
Mofreh R. Zaghloul2003-01-23Physics of Plasmas
Flibe (2LiF–BeF2) is a molten salt that has been chosen as the coolant and breeding material in many design studies of the inertial confinement fusion (ICF) chamber. Flibe plasmas are to be generated in the ICF chamber in a wide range of temperatures and densities. These plasmas are more complex than the plasma of any…
Laser-Plasma Interactions and DiagnosticsFusion materials and technologiesPlasma Diagnostics and Applications
Yong‐Woo Lee、Ivan Stanish、Vipin K. Rastogi 等 5 位作者2003-01-23Langmuir
Organophosphorus hydrolase (OPH), immobilized within polyelectrolyte multilayers deposited on glass beads (30−50 μm), showed sustained catalytic activity under ambient conditions for several months. OPH multilayers consist of two priming layers, branched poly(ethylene imine) (BPEI) and polystyrenesulfonate (PSS), foll…
Polymer Surface Interaction StudiesMolecular Junctions and NanostructuresPesticide and Herbicide Environmental Studies
Tomoyuki Izuhara、Ioan L. Gheorma、R. M. Osgood 等 7 位作者2003-01-23Applied Physics Letters
Thin barium titanate films, 0.5–8 μm thick, are obtained from a single-crystal bulk sample using ion slicing. The process, based on ion implantation and anodic bonding, separates thin films having areas of ∼1×1 cm2, from bulk crystals. The quality of the film is characterized by measurement of surface roughness and di…
Ferroelectric and Piezoelectric MaterialsMicrowave Dielectric Ceramics SynthesisDielectric properties of ceramics
Katharine E. Stitzer、Ahmed El Abed、Mark D. Smith 等 7 位作者2003-01-23Inorganic Chemistry
Single crystals of two new osmium-containing triple perovskites, Ba(3)LiOs(2)O(9) and Ba(3)NaOs(2)O(9), were grown from reactive molten hydroxide fluxes in sealed silver tubes. They crystallize in the space group P6(3)/mmc with lattice parameters of a = 5.8025(1) A, c = 14.1468(4) A for Ba(3)LiOs(2)O(9) and a = 5.8858…
Ferroelectric and Piezoelectric MaterialsPerovskite Materials and ApplicationsThermal Expansion and Ionic Conductivity
Jeong Min Baik、Ho Won Jang、Jong Kyu Kim 等 4 位作者2003-01-23Applied Physics Letters
A dilute magnetic semiconductor was achieved by implanting Mn ions into p-type GaN and subsequent annealing. The ferromagnetic property was obtained after annealing at 800 °C. This was attributed to the formation of Ga–Mn magnetic phases. Higher temperature annealing at 900 °C reduced the ferromagnetic signal and prod…
ZnO doping and propertiesGaN-based semiconductor devices and materialsGa2O3 and related materials
Kazuhiko Omote、Yoshiyuki Ito、Shigeru Kawamura2003-01-23Applied Physics Letters
A small-angle x-ray scattering technique has been applied for characterizing pore-size distribution in porous low-κ dielectric films. The data are collected in reflection geometry using offset θ/2θ scans for avoiding strong specular reflections from the film surface and its substrate. The effects of refraction and ref…
Metal and Thin Film MechanicsSemiconductor materials and devicesCopper Interconnects and Reliability
Derek Feichtinger、P. M. Derlet、H. Van Swygenhoven2003-01-23Physical review. B, Condensed matter
Atomistic simulations are employed to investigate the nanoindentation deformation properties of model nc-Au with grain diameters of 5 and 12 nm, using both conjugant gradient and molecular dynamics. It is found that grain boundaries act as efficient sinks for dislocation nucleation below the indenter and that intergra…
Microstructure and mechanical propertiesMetal and Thin Film MechanicsAdvanced materials and composites
Dannon J. Stigers、Gregory N. Tew2003-01-23Biomacromolecules
Biodegradable polyesters represent an important class of materials, and one subset of these polymers are the bacterially produced poly(3-hydroxyalkanoate)s (PHA), a bacterially produced material. These polymers are very hydrophobic, and chemical methods to increase their hydrophilicity will ultimately lead to new appl…
biodegradable polymer synthesis and propertiesElectrospun Nanofibers in Biomedical ApplicationsCarbon dioxide utilization in catalysis
Rei Hamada、Yusuke Shibata、Satoru Nishiyama 等 4 位作者2003-01-23Physical Chemistry Chemical Physics
The gas-phase catalytic oxidation of benzene was carried out using molecular oxygen as an oxidant over Cu-supported catalysts. Phenol was formed only when using Cu-supported high-silica-type zeolites as catalysts. The Cu-supported H-ZSM-5 zeolite (CuH-ZSM-5) was the most active among those tested. Deep oxidation produ…
Catalytic Processes in Materials ScienceZeolite Catalysis and SynthesisCatalysis and Oxidation Reactions
Xu Li、Jun Li、Kam W. Leong2003-01-23Macromolecules
Inclusion complexes (ICs) of biodegradable amphiphilic poly(ethylene oxide)−poly[( R )-3-hydroxybutyrate]−poly(ethylene oxide) triblock copolymers with α-cyclodextrin (α-CD) or γ-cyclodextrin (γ-CD) were prepared from aqueous medium. The ICs were characterized by XRD, DSC, 13 C CP/MAS NMR, 1 H NMR, FTIR, and TGA. The…
Advanced Polymer Synthesis and Characterizationbiodegradable polymer synthesis and propertiesSilicone and Siloxane Chemistry
Avner Rothschild、Y. Komem、А. А. Леваков 等 5 位作者2003-01-23Applied Physics Letters
Electronic properties of reduced (vacuum-annealed) and oxidized (air-annealed) TiO2 films were investigated by in situ conductivity and current–voltage measurements as a function of the ambient oxygen pressure and temperature, and by ex situ surface photovoltage spectroscopy. The films were quite conductive in the red…
ZnO doping and propertiesTransition Metal Oxide NanomaterialsCopper-based nanomaterials and applications
N. V. Bhat、Anand Gadre、Vaishali Bambole2003-01-23Journal of Applied Polymer Science
Abstract Polypyrrole–Polymethylmethacrylate (PMMA + PPy) composite films were prepared electrochemically by means of codeposition at constant potential. The films were characterized by using Infrared spectroscopy, wide‐angle X‐ray diffraction analysis, and scanning electron microscopy. The appearance of standard and s…
Electrochemical sensors and biosensorsConducting polymers and applicationsAnalytical Chemistry and Sensors
J. H. Jagannath、C. Nanjappa、Dilip Gupta 等 4 位作者2003-01-23Journal of Applied Polymer Science
Abstract The present investigation dealt with the mechanical properties, water‐vapor transmission behavior at different relative humidity conditions, and DSC thermograms of edible films formulated using various proteins (casein, gelatin, albumin) in combination with starch and nonthermal as well as intense thermal ble…
Food composition and propertiesNanocomposite Films for Food PackagingElectrospun Nanofibers in Biomedical Applications
Israël M. Mbomekallé、Bineta Keita、Louis Nadjo 等 7 位作者2003-01-23Inorganic Chemistry
Reaction of the trivacant lacunary complex, alpha-Na(12)[As(2)W(15)O(56)], with an aqueous solution of Fe(NO(3))(3).9H(2)O yields the sandwich-type polyoxometalate, alphabetabetaalpha-Na(12)(Fe(III)OH(2))(2)Fe(III)(2)(As(2)W(15)O(56))(2) (Na1). The structure of this complex, determined by single-crystal X-ray crystall…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsNanocluster Synthesis and Applications
Alexander Becker、U. Bismayer、Matthias Epple 等 7 位作者2003-01-23Dalton Transactions
Mineral deposits in land-based woodlice (crustacea, Porcellio scaber) were analysed by high-resolution X-ray diffraction, X-ray absorption spectroscopy (EXAFS) and infrared microscopy. Calcium carbonate is stored within the first four anterior sternites before changing the cuticle (shell). These deposits consist of fu…
Bone Tissue Engineering MaterialsPaleontology and Stratigraphy of FossilsCalcium Carbonate Crystallization and Inhibition