Materials Literature
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Surface-enhanced Raman scattering (SERS) is a powerful technique for the analysis of a variety of molecules and molecular structures. Due to its great complexity, the acquisition of detailed molecular information from biological organizations such as bacteria is still a challenging task. SERS can provide valuable info…
Single crystal CaS:Eu and SrS:Eu luminescent particles were synthesized via a solvothermal route at relatively low temperature . The as-obtained suspensions were strongly photoluminescent (PL), pointing at good Eu incorporation. The phosphors showed a broad PL emission band with an emission peak at 663 and for CaS:Eu…
The effects of La and/or Ti doping on crystallization, surface morphology, and electric properties of bismuth ferrite (BFO) films were investigated. All films consisted of single perovskite phase without a second phase. Ti-doping (BFT) does not have significant effects on leakage and polarization-electric field ( P-E…
This paper aims at developing a technique to calculate the reflection, absorption, and transmission of electromagnetic waves by a bounded plasma region.The model chosen for this study is a magnetized, steady-state, two-dimensional, nonuniform plasma slab, which is presented by a number of parallel flat layers.It is as…
Effects of annealing on the electrical resistivity and transmittance properties of Ga doped ZnO (GZO) thin films deposited on glass by radio frequency (RF) magnetron sputtering were investigated. The electrical resistivity of a GZO thin film is effectively decreased by annealing in a reducing atmosphere such as N 2 +…
The chiral tartaric acid derived bis(β-diketonate) ligands 1–3-H2 diastereoselectively form dinuclear triple-stranded helicates with a series of lanthanide(III) ions (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb), which bind water molecules as additional co-ligands. In the cases of europium(III) and terbium(III) ion…
The membrane structural biologist seeks to understand how membrane proteins function at a molecular level. One of the most direct ways of accomplishing this requires knowing the structure of the protein, ideally at atomic resolution. To date, this can only be done by the method of macromolecular crystallography. Integ…
In this brief article we selectively highlight some important recent results and materials, giving particular attention to low dimensional systems where the absence of conventional long range magnetic ordering reveals an increasing range of interesting quantum magnetic effects. In almost all of these materials the spa…
Thin films of calcium substituted lanthanum manganite (La1−xCaxMnO3) have been synthesised by the ALD (atomic layer deposition) technique using Mn(thd)3 (Hthd = 2,2,6,6-tetramethylhepta-3,5-dione), La(thd)3, Ca(thd)2, and ozone as precursors. The effect of each of these precursors on the product stoichiometry has been…
We constructed a single-crystal synchrotron X-ray diffraction system to precisely study the structure under hydrostatic pressure conditions at low temperatures and applied it to a study on the phase transition phenomena of a Cd–Yb periodic approximant and a Cd–Yb quasicrystal. Four phases were newly observed for the 1…
The spin ground state of a [Mn(III)(6)Mn(II)(2)] cluster has been deliberately switched from S = 1 to S = 7 upon designed ligand substitution.
EQCM experiments were carried out on PEDOT films exposed to TEABF(4)/CH(3)CN and TEABF(4)/CH(2)Cl(2) under permselective conditions and subjected to cyclic voltammetry in the potential range corresponding to p-doping. Current and frequency responses were used to obtain time-resolved ion and solvent flux data as functi…
Cationic hexarhodium and hexairidium complexes with a trigonal prismatic architecture have been synthesised in good yield by self-assembly of the dinuclear oxalato-bridged complexes [Cp(2)M(2)(micro-C(2)O(4)-kappaO)Cl(2)] (M = Rh; 1: Ir; 2) with 2,4,6-tri(pyridine-4-yl)-1,3,5-triazine (tpt) in the presence of AgO(3)SC…
Stöber silica nanoparticles of diameter about 45, 60 and 100 nm and different hydrophobicity are used to produce monolayers at a water-air interface. Both the surface pressure-area isotherms and the reflectivity angle of incidence curves of the layers have been measured in a Wilhelmy film balance. The contact angle of…
The contrast agent which tethers a spiropyran group to a Gd-DO3A moiety has higher relaxivity and fluorescence intensity in the dark; the relaxivity and fluorescence intensity decrease after irradiation with visible light.
Anode-supported planar solid oxide fuel cells ͑SOFC͒ were fabricated by a single step co-firing process.The cells were composed of a Ni + yittria-stabilized zirconia ͑YSZ͒ anode, a YSZ electrolyte, an industrial Ca-doped LaMnO 3 ͑LCM͒ ͑or lab-made LCM͒ + YSZ cathode active layer, and an industrial LCM ͑or lab-made LCM…
The impact of coordinatively-unsaturated alkali-metal ions on hydrogen adsorption is studied in dehydrated variants of the compounds A(2)Zn(3)[Fe(CN)(6)](2).xH(2)O (A = H, Li, Na, K, Rb), revealing maximum adsorption enthalpies that vary from 7.7 kJ mol(-1) for A = Na to 9.0 kJ mol(-1) for A = K.
The properties of planar, single-layer metamaterials, or metafilms, are studied by varying the structural components of the split-ring resonators used to comprise the overall medium. Measurements and simulations reveal how minor design variations in split-ring resonator structures can result in significant changes in…
This report describes formation of soft vesicular structures by a tetrapeptide and its disruption triggered by potassium ions.
Single-walled carbon nanotube (SWCNT) bundles have the potential to provide an attractive solution for the resistivity and electromigration problems faced by traditional copper interconnect. In this paper, we evaluate the performance and reliability of nanotube bundles for future VLSI applications. We develop a scalab…