Materials Literature
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Abstract It is shown that magnetometry can be employed as an effective tool to control the content of a ferromagnetic constituent in nanocarbon materials. We propose a thermochemical treatment protocol to achieve extensive cleaning of the source nanocarbon materials from ferromagnetic refuses.
Abstract Molybdenum(II) complexes [MoX(CO) 2 (η 3 ‐allyl)(CH 3 CN) 2 ] (X = Cl or Br) were encapsulated in an aluminium‐pillared natural clay or a porous clay heterostructure and allowed to react with bidentate diimine ligands. All the materials obtained were characterised by several solid‐state techniques. Powder XRD…
A liquid in contact with a nanoporous Au film forms a halo of constant width around the droplet. Due to the large surface area-to-volume ratio, one would expect either complete wetting or rejection of the liquid. Instead, a stable halo width is observed, depending on pore size, void fraction, film thickness, and the l…
Time of flight low energy ion scattering is used to quantitatively characterize the growth mode of Au deposited on B. Information on the filling factor (surface area coverage) is deduced from the yield of backscattered ions and the spectrum height of scattered neutrals. From the variation of the filling factor with th…
Electron beam irradiation studies on 4′-pentyl-4-cyanobiphenyl (5CB) have been carried out. Dielectric measurements demonstrate that even a low level of irradiation (beyond a critical dose of ∼6kGy) results in a dramatic increase in the transverse component of the dielectric permittivity, and a corresponding decrease…
We have investigated structural and functional properties of (110) La2∕3Ca1∕3MnO3 films grown on (110) SrTiO3 substrates. We have observed that there is an anisotropic in-plane lattice strain relaxation with faster relaxation along the [1−10] direction than along the [001] one, which leads to an anisotropic in-plane s…
We have fabricated single crystal-like BiFeO3 (BFO) thin films by flux-mediated epitaxy using pulsed laser deposition (PLD). The Bi–Cu–O flux composition and its thickness were optimized using composition spread, thickness gradient, and temperature gradient libraries. The optimized BFO thin films grown with this techn…
Abstract Strongly red fluorescent and broadband absorbing benzoterrylenehexacarboxtriimide ( 8 ) and yellow fluorescent dibenzoterryleneoctacarboxtetraimide ( 9 ) were prepared by the Diels–Alder reaction of readily soluble terrylenetetracarboxdiimides and subsequent condensation with primary amines. Applications such…
Abstract The synthesis of face‐to‐face meso ‐substituted bis(corrole) systems was revisited. By using a new synthetic pathway, the reaction was generalized to any type of linker and the yield was considerably increased. The dyads were obtained in yields up to 20 % from a dialdehyde linker and dipyrromethane in a one‐s…
Amorphous poly(DL-lactide-co-RS-beta-malic acid) (PDLLMAc) was synthesized by hydrogenolysis of poly(DL-lactide-co-RS-beta-malolactonate) (PDLLMA), which was obtained from the ring-opening polymerization of DL-lactide (DLLA) and RS-beta-benzyl malolactonate (MA) using stannous octoate as the catalyst. The amount of ma…
We have investigated the change of work function of indium tin oxide (ITO) anodes induced by adsorption of positively charged poly(amidoamine) (PAMAM) dendrimers. Kelvin probe characterization of the functionalized ITO films and electroabsorption measurements on polymer light-emitting diodes incorporating poly(9,9-dio…
The electrostatic properties of individual multiwalled carbon nanotubes (MWCNTs) have been investigated from charge injection and electrostatic force microscopy experiments. The MWCNT linear charge densities analyzed as a function of the nanotube diameters are found to differ from classical capacitive predictions by o…
The magnetoelectric Tb–Fe∕Pb(Zr0.52Ti0.48)O3 thin-film heterostructure was prepared by low energy cluster beam deposition. The microstructures, ferroelectric property, leakage current, and magnetization, as well as magnetoelectric effect were investigated for the heterostructure. It is shown that the thin-film heteros…
(110) ZnO/(001) Nb-1wt%-doped SrTiO3 n-n type heteroepitaxial junctions were fabricated using the pulse laser deposition method. A diodelike current behavior was observed. Different from conventional p-n junctions or Schottky diodes, the diffusion voltage was found to increase with temperature. At all temperatures, th…
Abstract The paper presents a new version of MgAl 2 O 4 solution‐combustion synthesis, based on the individual reactivity of Mg(NO 3 ) 2 and Al(NO 3 ) 3 with respect to various fuels. Beside the traditionally used fuels (urea, glycine, β‐alanine), new organic reducing agents [monoethanolamine, triethanolamine, tris(hy…
A dehydrided Ti powder of very high oxygen content was successfully consolidated using back pressure equal channel angular processing into a fully dense bulk ultrafine-grained Ti showing apparent compressive ductility as well as high true yield and ultimate strengths of 1350 and 1780MPa, respectively. Interstitial sol…
Abstract The rubber antioxidant N ‐(4‐anilinophenyl) methacrylamide (NAPM) was synthesized by a two‐step reaction using thionyl chloride (SOCl 2 ) with methacrylic acid (MAA) and consequently 4‐aminodiphenylamine (ADPA) as precursors. NAPM was characterized by IR, 1 H NMR and elemental analysis. Thermal stability, agi…
Semiconductor quantum dots (Qdots) have emerged as novel ultrasensitive optical probes to target, detect, and image fundamental events occurring within the biological system. In particular, near-infrared (near-IR) Qdots holds great promise as in vivo contrast agents for real-time bioimaging capabilities. In this study…
Nanocrystal-assembled cubic boron nitride (cBN) islands are formed by using low-energy (∼20eV) ion irradiation in an inductively coupled fluorine-containing plasma. The temporal evolution of surface morphology and roughness reveals three-dimensional island growth for initial sp2-bonded BN and subsequent cBN, accompani…
The interplay of surface ordering and elasticity can be studied on the example of a liquid crystal confined to a cavity. We present a computer simulation study of a liquid of hard spherocylinders in a hard spherical cavity. With increasing density, first a uniaxial surface film forms and then a biaxial surface film, w…