Materials Literature
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The 2,4-dichlorophenoxyacetic acid (2,4-D) is applied to and recovered from the leaf surfaces of garden bean and corn plants. This paper examines the theoretical study of the 2,4-D IR and UV spectra as well as the determination of its optimized molecular structure. Theoretical calculations are performed at the density…
Bacterial cellulose (BC) obtained in the bacterial biosynthesis by Acetobacter xylinum is considered one of the most interesting materials tested and used in different areas of the human activity. Successful its applications in medicine and food industry launched a study of this material on a large scale. Many charact…
The new method of nanostructured fluoride ceramics preparation based on LiF:F2− color center crystals is reported. The high optical quality ceramics based on LiF with different color centers were prepared. High-efficient laser oscillation was obtained and compared with single crystal data.
Conductor rolls in continuous cold rolled steel strip horizontal acid electrogalvanizing lines after some period of service suffer a surface deterioration that alters its color, aspect and eventually its roughness what is more deleterious to its good performance. The surface degradation finally produce a pattern on th…
Honeycomb-patterned polystyrene (PS) microbeads were prepared through the self-assembly of PS nano-spheres induced by solvent evaporation in the presence of a cationic polyelectrolyte – poly(diallyl dimethyl ammonium chloride) (PDAD). Irregular particles were synthesised when the suspension was added with a single ani…
Laser irradiation of thin solar cell films require delicate control of irradiation parameters to achieve desired results without damaging film itself or the substrate. The effects of laser parameters on the ablation results of thin CIGS solar cell films are presented in detail.
Coercive fields and X-Ray intensity ratios of the K-series lines of Ni films in the thickness range of 5-2000 nm deposited onto Si (111) substrate have been studied. The Coercive field is observed to increase with thickness and follows power law for the thickness range ≥ 50 nm. For lower thickness, there is a deviatio…
A wash water recycling method is used in the preparation of layered double hydroxides (LDHs). Based on the multiple-low-amount principle, a mathematical model and the equations of the washing process have been formulated. The experimental data are very similar to the calculated values, which means that the model and e…
The paper deals with Dielectric Behaviour, Complex Impedance Spectroscopy and Magnetoelectric effect in La 0.7 Sr 0.3 MnO 3(LSMO) and BaTiO 3 (BT) Composites. The LSMO and BT are synthesized by hydroxide co-precipitation route. The nanocomposites are prepared by two series x LSMO + (1-x) BT + 2 wt % Bi 2 O 3, for x =…
Organic compound of 1-(4-methoxyphenyl)-3-(2-methoxy 5-bromophenyl)prop-2-en-1-one [MMBPP] with molecular formula C16H11BrO3 was synthesized using Schmidt condensation method. A FT-IR spectrum was recorded to identify the various functional groups present in the compound. The single crystals were grown using slow evap…
A large set of X-ray scattering images on multiple identical gold nanoparticles (350 nm) in random orientation was used to determine the 2D structure of the nanoparticle template at 20 nm resolution applying the cross-correlation method.
Oscillations of magnetization of a ferromagnetic disk included in the ferromagnet/nonmagnetic metal/ferromagnet nanostructure under the action of the spin-polarized current are studied in the macrospin approximation. Conditions for switching and oscillations of magnetization are determined for four cases of the magnet…
Properties such as a large band gap, high thermal conductivity and resistance to radiation damage make diamond an extremely attractive candidate for detectors in next generation particle physics experiments. This paper presents our technique for metallisation of a single crystal diamond grown by chemical vapour deposi…
Nano-scale silica nanospheres were selectively integrated in three-dimensional a-plane GaN buffer. We attribute the improved efficiency of the a-plane GaN LEDs to the improved crystal quality and increased extraction efficiency by imbedded silica nanospheres.
Biodegradable polymers can be used in living systems. One such biodegradable polymer that has attracted considerable attention in recent years is poly(trimethylene carbonate) (PTMC). In this study, poly(ethylene glycol) monomethyl ether (mPEG), which has hydrophilic properties, was used as the initiator for PTMC synth…
In the present communication, effect of Mn substitution on thermal expansion of EuBa2Cu3–xMnxO7–δ has been investigated. Thermal expansion measurements have been carried out using a high resolution dilatometer based on three terminal capacitance method. The present set–up is sensitive enough to detect small changes in…
Multi-walled carbon nanotubes films formed randomly aligned laterally by electrophoresis. Multi-walled carbon nanotubes with lengths of about 10 μ was shortened and functionalized by a mixture of sulfuric and nitric acid. The functional groups on carbon nanotubes were elaborated by FT-IR. Chemically shortened MWCNTs d…
We present a novel efficient model to analyze the optical properties of multiple subwavelength apertures arbitrarily located on metal films. The model is verified by computing extraordinary optical transmission through an aperiodic nanoslit array.
We have investigated the behaviors of domain clamping in Bi-based ferroelectric single crystals of Bi4Ti3O12 (BiT) and (Bi0.5Na0.5)TiO3 (BNT) using piezoresponse force microscopy (PFM). PFM observations reveal that 90° domains are clamped during polarization switching in BiT single crystals. BNT single crystals exhibi…
The refraction of evanescent waves at an air and optically pumped Ti:Sapphire interface is investigated. The experimental results qualitatively support the theory of optical gain-assisted evanescent wave conversion at a passive/active boundary.