Materials Literature
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Magnetotransport of La0.7Sr0.3MnO3 (LSMO)/regioregular poly3-hexylthiophene (rr-P3HT) interfaces were studied at 5–300 K to gain insight of spin transport in polymer coated LSMO. LSMO films on SrTiO3 (STO), MgO, and quartz substrates were characterized in pristine state, after depositing rr-P3HT and after removing rr-…
2,5-Dithienylpyrroles containing p -substituted benzene ring at the nitrogen atom were synthesized. The formylation and subsequent crotonic condensation of N -(4-nitrophenyl)-2,5-di (2-thienyl)pyrrole was performed. Electrochemical behavior of the compounds and electrochromic properties of 2,5-di(2-thienyl)-pyrrole co…
The coordination properties of (5,15-diphenyl-3,7,13,17-tetramethyl-2,8,12,18-tetrabutylporphyrinato)-manganese(III) acetate toward small organic molecules in an inert solvent medium were studied. The values of the equilibrium constants of the process and the composition of the molecular complex were determined. The i…
The influence of recovery annealing in a CO2 atmosphere at 700°C on the properties of Li2Zn2(MoO4)3 crystals doped with cerium and copper ions has been studied. The EPR investigation of Li2Zn2(MoO4)3 crystals annealed in a CO2 atmosphere has revealed that the annealing leads to the formation of oxygen vacancies in pos…
The corrosion rate of copper under a single droplet of NaCl has been investigated using electrochemical impedance spectroscopy technique. The changes in contact angle, volume loss and droplet height during the progress of corrosion process will be monitored. Corrosion rates were greatly accelerated as the droplet heig…
The structural stability of nickel oxide (NiO)$_n$ $(n=1$~$7)$ nanoclusters were studied using Gaussian 03W program package with B3LYP/6-31G level basis set. It is observed that the ring structure is more stable in most cases compared to other structures( Linear and 3D). For $n > 6$ the 3D structure is no longer st…
A new previously unknown phase of boron nitride with a hardness of 0.41–0.63 GPa has been pre-pared by the supercritical fluid synthesis. The presence of a new phase is confirmed by the X-ray spectra and IR absorption spectra, where new reflections and bands are distinguished. The fundamental reflection of the X-ray d…
Studies on creating a plasticizer-resistant strengthening composition for fastening highly filled polymeric compositions based on polybutadiene rubber plasticized by transformer oil were carried out. The kinetic rheological regularities of curing the strengthening composition around polyester-urethane rubber with end…
Composite can alter the individual element physical property, could be useful to define the specific use of the material. Therefore, work demonstrates the synthesis of a new composition Se96-Zn2-Sb2 and its composites with 0.05%multi-walled carbon nano tubes and 0.05% bilayer graphene, in the glassy form. The diffused…
After decades of relentless progress, the evolutionary path of silicon CMOS industry is finally approaching an end. Fundamental limitations do not allow silicon to scale beyond 10 nm technology node without compromising severely on the device performance. In order to reinforce the accelerating pace, there is an urgent…
Abstract Core–shell structure catalyst CuO–ZnO–Al2O3@Al2O3 was prepared using glucose as template. This novel preparation procedure and the specific core–shell structure contributed to excellent performance for dimethyl ether (DME) direct synthesis from syngas. This catalyst showed higher CO conversion and DME selecti…
A ZnO nanowire ultraviolet photodetecto with an iridium electrode fabricated on a GaInP/GaAs/Ge triple-junction solar cell. The ZnO NW PD can detect the UV light below 370 nm without detecting solar light. It should be noted that solar light was transformed to electrical power by the TJ solar cell and provided a light…
Abstract Preparation of potassium nitrate from magnesium nitrate and potassium chloride was investigated. Prepared potassium nitrate contains less than 0.5 % chlorides and it can be applied as environmentally friendly fertilizer in hydroponic systems. After filtration out potassium nitrate crystals from the reciprocal…
The signal transmission along interconnect based on graphene nanoribbon (GNR) is studied in this paper. Equivalent circuit models are implemented to characterize graphene-based interconnect and analyze its signal integrity. In equivalent circuits models, the inter-layer mutual impedance (capacitance and inductance) be…
This paper presents the technique and results of the investigation of the structural relaxation in disordered solid media (polyisobutylene, toluene, ortho -dichlorobenzene) at temperatures below the glass transition point via the spectra and fluorescence images of single impurity fluorescent molecules (terrylene, tetr…
Embedded materials prepared from MCM-41 together with BE or TON were synthesized, characterized and tested in the ring opening of decalin in a temperature range of 523–623 K. The characterization results revealed that both microporous and mesoporous phases were present in the catalyst. Ir-modification did not change t…
Electrodeposition of copper germanide (Cu3Ge) thin films from an alkaline tartrate-complexed electrolyte is described. Current pulsing is shown to enable co-deposition of copper and germanium in the stoichiometric ratio Cu:Ge = 3:1, while providing smooth and compact electrodeposits. The presence of ε-Cu3Ge phase with…
Experimental results of studying the electronic structure of single-walled and multi-walled carbon nanotubes as well as graphite by X-ray absorption spectroscopy (or NEXAFS spectroscopy) are presented. The C1s absorption spectra are measured with high energy resolution using the equipment of the Russian-German beamlin…
As Micro-electromechanical Systems (MEMS) fabrication and actuation methods are very suitable to realize the tunability of metamaterials in terahertz regime, a kind of tunable metamaterial absorber based on MEMS techniques is proposed in this paper. Firstly, an improved electric ring resonator (ERR) absorber model is…
A zero index metamaterial lens (ZIML) is proposed in this paper for antenna directivity and gain enhancement. The zero index metamaterial (ZIM) is constructed from both electric metamaterial with near-zero permittivity and magnetic metamaterial-modified split ring resonator (MSRR)-with near-zero permeability. The ZIM…