Materials Literature
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Assembly of triangular {Mn(III)(3)(O)(salox)(3)}(+) fragments mediated by azido ligands, results in the dodecanuclear [Mn(12)O(4)(salox)(12)(N(3))(4)(MeOH)(4)(H(2)O)(2)] complex with S = 8 ground state and SMM response.
We study the magnetic properties of Nd 2 Fe 14 B/α-Fe multilayer systems, especially the exchange coupling between the two layers and the crystal field parameters A 0 2 ⟨ r 2 ⟩ for the Nd ions located around the interfaces, based on first principles calculations. We find that the exchange coupling depends on the Mille…
A series of mononuclear Mn(II), Mn(III), and Mn(IV) complexes was prepared using a single tripodal ligand (H(3)L). Addition of a cation (NH(4)(+), K(+), Na(+)) to [Mn(III)L] showed a pronounced effect on the redox potentials. Different variants of Jahn-Teller distortion, axial elongation and compression, were observed…
Since micro- and nanostructures for photon management are of increasing importance in novel high efficiency solar cell concepts, structuring techniques with up-scaling potential play a key role for the realization of these concepts. Interference lithography is reviewed as a technology for the origination of fine-tailo…
The existence of a complex and highly frustrated mesophase, namely the twist grain boundary (TGB) phase possessing chiral smectic C (SmC*) blocks, denoted as the TGBC* phase, over an exceptionally wide (105–150 °C) thermal range in chiral dimers has been evidenced by optical, calorimetric, spectroscopic, X-ray and He–…
The organic-organic self-assembly method with Resorcinol (R)/Formaldehyde (F) and Pluronic F127 has been employed to synthesize mesoporous carbon (MC). The pore diameter of the MC has been tuned from 7 to 12.5 nm by changing the molar ratio of carbon sources to surfactant and polymerization time.
We demonstrate how water-soluble gold nanoparticles prepared by the citrate reduction method can be functionalized with 11-azidoundecane-1-thiol in a single-step procedure, which combines phase transfer and ligand exchange. The advantages of our method include high reproducibility, low cost of gold nanoparticle produc…
We report the detailed roadmap of the morphology evolution of semiconductor PbS crystals synthesized by a green route. Without using any surfactant in our electrochemical deposition process, we obtained rich morphologies of PbS crystals in a bulk amount with uniform size, showing continuous shape change from octahedra…
Large scale and uniform SiO2 nanowires have been successfully fabricated in a high-frequency induction furnace via a Ge-catalyzed vapor liquid solid (VLS) mechanism. The nanowires were characterized by scanning electron microscopy, transmission electron microscopy, XRD and Raman spectroscopy. The results show that the…
We have demonstrated that quaternary Cu(x)In(x)Zn(2(1-x))S(2) nanobelts could be synthesized through a facile solution-based method. The composition and band gap of quaternary nanobelts can be tuned within the broad range by changing the relative ratio of precursors. The growth mechanism of quaternary nanobelts was de…
Barium zirconate (BaZrO3) was prepared by a low-temperature composite-hydroxide-mediated (CHM) approach. The synthesis was performed using zirconium dioxide (ZrO2) and barium hydroxide (Ba(OH)2) as starting materials and a mixture of anhydrous hydroxides with NaOH and KOH as the reaction medium at 170–230°C for 18 h.…
An automated apparatus capable of measuring the electrical conductivity and thermopower of thin films over a temperature range of 300-750 K is reported. A standard dc resistance measurement in van der Pauw geometry was used to evaluate the electrical conductivity, and the thermopower was measured using the differentia…
An anthracene derivative, having benzamide substituents bearing optically active alkyl chains, in hexane forms one-handedly biased helical supramolecular nanofibres, which show unequal linear dichroism (LD) in right- and left-handed vortex flows.
We chose dipicolinic acid as a tridentate chelating unit featuring ONO donors to react with lanthanide(III) ions to yield tight and protective N(3)O(6) environments around the lanthanide(III) ions. We immobilized the lanthanide(III)-dipicolinic acid complexes on colloidal mesoporous silica with diameter smaller than 1…
An organic cocrystal compound consisting of melamine, orotic acid and water molecules was synthesized under hydrothermal conditions. Investigation of its temperature- and frequency-dependent dielectric behaviors reveals that the fluctuation of hydrogen atoms of water molecules between the layers plays a key role in it…
Thin films of WO3 were deposited on quartz substrates by the RF magnetron sputtering. Different annealing temperatures of 423, 473, 573 and 773 K were used for different films. The films were annealed under the ambient conditions. The influence of the annealing temperature on the structure and optical properties of th…
Titania nanoparticles are produced by tons, and included in commercial products, raising concerns about their potential impact on human health. This study relates their cytotoxic and genotoxic impact on a cell line representative of human lung, namely A549 alveolar epithelial cells.
The corrosion properties of AZ91 and its alloy with 0.33 wt.% strontium were investigated in a 200 ppm Cl − solution. The microstructures of the alloys were examined by X-ray diffraction and electron probe X-ray microanalysis. Potentiodynamic polarization and electrochemical impedance spectroscopy were used to evaluat…
The paper describes some properties of new quaternized polysulfones obtained by quaternization of chloromethylated polysulfone with different tertiary amines - N,N-dimethylethylamine and N,N-dimethyloctylamine. Hydrophilic/hydrophobic properties, morphological aspects and compatibility with red blood cells and platele…
We report on the calculation of the spin-spin coupling term J in a diarylnitroxide diradical system which is a slightly simplified version of a recently synthesized stable species with a triplet ground state. We have applied our complementary space perturbative approach using virtual orbitals appropriately modified wi…