Materials Literature
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Polarization-dependent resonant inelastic x-ray scattering is demonstrated here for liquid acetonitrile, acetone and dimethyl sulfoxide, using the liquid micro-jet technique.Selective excitation to an unoccupied orbital with a specific symmetry at the K-edge x-ray absorption of liquid samples determines the polarizati…
In this letter, low-temperature (480°C) microwave annealing (MWA) for MOS devices with high-k/metal gate-stacks is demonstrated. The capacitance-voltage (C-V) characteristics of the MOS gate-stacks, TiN/HfO2, and TaN/HfO2, after different annealing methods are discussed. The increases in equivalent oxide thickness (EO…
The synthesis of a novel cyclophane (L1) consisting of a 1H-pyrazole moiety linked through methylene groups to a 1,5,9,13-tetraazadecane chain is described. As far as we know, this is one of the first reported syntheses of a [1 + 1] condensation 1H-pyrazole azamacrocyclic ligand. The crystal structures of the complexe…
BACKGROUND: Streptomyces sp. N174 chitosanase (CsnN174), a member of glycoside hydrolases family 46, is one of the most extensively studied chitosanases. Previous studies allowed identifying several key residues of this inverting enzyme, such as the two catalytic carboxylic amino acids as well as residues that are inv…
Soil organic matter (SOM) in a peat soil, humic acid, and humin and their precursors (i.e., cellulose and lignin) were treated at high temperature (250 and 400 °C) with high pressure in a sealed platinum reaction kittle to simulate the influence of diagenesis on their composition and structure, and impact of the simul…
Monotone variational recurrence relations arise in solid state physics, conservative lattice dynamics and the theory of Hamiltonian twist maps. An example is the Frenkel–Kontorova lattice. For such recurrence relations, Aubry–Mather theory guarantees the existence of solutions of every rotation number ω ∈ ℝ. When ω is…
Quantitative oxidation of [Fe(ttpy) 2 ] 2+ ( 1 ) (ttpy = 4′-(4-methylphenyl)-2,2′:6′,2″-terpyridine) has been performed in CH 3 CN by continuous photolysis experiments in the presence of [Ru(ttpy) 2 ] 2+ ( 2 ) and a large excess of a diazonium salt (ArN 2 + ) as sacrificial oxidant. The reaction occurs with a low quan…
Two new metal–organic compounds, [Ag2(HADC)2(bimh)] (1) and [Cd(ADC)(bpp)]n (2) [H2ADC = 1,3-adamantanedicarboxylic acid, bimh = 1,6-bis(2-methyl-imidazole-1-yl)hexane, bpp = 1,3-bis(4-pyridyl)propane], have been synthesized and characterized. Compound 1 exhibits a discrete symmetric unit with 0D→2D interpenetrating s…
In this work a high-frequency dynamic model of a pre-loaded circular DEAP actuator is developed and experimentally validated. The model is capable of predicting both the static and dynamic response of the actuator. The static response is modeled based on a free energy approach and consists of an Ogden term representin…
We proposed a piezoelectric-actuated rigid nanoneedle for single cell wall cutting. A fabricated Tungsten (W) nanoneedle was assembled with a commercial piezoelectric actuator laterally and perpendicularly. The body of the nanoneedle is cylindrical while the shape of the tip is conical. Calibration of the assembled de…
Effective light trapping is required for poly-Si thin film solar cells to compensate for the moderate light absorption. Recent developments of light trapping in the poly-Si cell technology focus on random light scattering in the absorber layer by three means: glass substrate texture, silicon film etch-back texture, an…
Phosphonic acid, P, P ′-(1,4-piperazinediyl)bis-, P, P, P ′, P ′-tetraphenyl ester (PAPBE), as a versatile flame retardant, was prepared by a literature method. The solubilities of PAPBE in selected solvents have been measured under a range of temperatures from 283.15 K to 343.15 K. The experimental data were correlat…
Thin ZrO2 films and ZrO2/TiO2 bilayers grown by atomic layer deposition (ALD) are integrated into metal–oxide–metal (MOM) structures for investigation of resistive switching (RS) properties. The films have different microstructure depending on the used ALD oxygen source and stacking sequence for the bilayers. Pt/ZrO2/…
Abstract A new series of platinum(II) complexes with tridentate ligands 2,6‐bis(1‐alkyl‐1,2,3‐triazol‐4‐yl)pyridine and 2,6‐bis(1‐aryl‐1,2,3‐triazol‐4‐yl)pyridine (N7R), [Pt(N7R)Cl]X ( 1 – 7 ) and [Pt(N7R)(CCR′)]X ( 8 – 17 ; R= n ‐C 4 H 9 , n ‐C 8 H 17 , n ‐C 12 H 25 , n ‐C 14 H 29 , n ‐C 18 H 37 , C 6 H 5 , and CH 2…
Fabrication of a percolating conductive device exhibiting "necklace-like morphology" is being reported utilizing a new route. This device was fabricated by exploiting the electrostatic self-assembly of citrate capped negatively charged Au nanoparticles (NPs) (60 nm diameter) over positively charged poly(allylamine hyd…
The behavior of pure fluid confined in a cone is investigated using thermodynamic stability analysis. Four situations are explained on the basis of the initial confined phase (liquid/vapor) and its pressure (above/below the saturation pressure). Thermodynamic stability analysis (a plot of the free energy of the system…
The processing, morphological structure, and properties of polymeric materials are closely related with each other. Morphological structure of polymeric materials is formed in situ under complex temperature and external force fields during processing, and in turn affects the ultimate performances of products. With the…
At low temperatures, the thermal wavelength of acoustic phonons in a metallic thin film on a substrate can widely exceed the film thickness. It is thus generally believed that a mesoscopic device operating at low temperature does not carry an individual phonon population. In this work, we provide direct experimental e…
Early electromigration (EM) failure mechanism, also known as Mode II EM failure in Sn-based Pb-free solder joints with Ni under-bump metallization (UBM) is studied. A numerical model was built to incorporate interdiffusion and EM, and to investigate the effect of Sn crystal orientation. Results show that when the c ax…
Hazardous waste treatment facilities in China are in shortage. Co-firing hazardous waste with coal in industrial and utility boilers would be a near term, low cost, and low risk option. This work presents a thermogravimetric and kinetic analysis based study on bioferment residue (BR, hazardous waste), coal and their b…