Materials Literature
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Trisilanol polyhedral oligomeric silsesquioxane (POSS) derivatives have recently been reported as a new class of amphiphilic molecules that form stable Langmuir monolayers at the air/water interface and exhibit interesting phase transitions and aggregation behavior. In this letter, surface light scattering (SLS) has b…
Composite films of alginic acid–hyaluronic acid and alginic acid–heparin were deposited by electrochemical method for the surface modification of conductive substrates. Obtained films were studied by SEM, thermogravimetric analysis (TGA), differential thermal analysis (DTA) and Fourier transform infrared spectroscopy…
Abstract Water treeing is one of the main deterioration phenomena affecting the service lifetime of the underground crosslinked polyethylene (XLPE) power cables. Factors influencing the water tree growth can be classified in two major groups, namely, the external factors (operational factors) and the internal factors…
Recent studies suggest that inhaled or intratracheally instilled multi-walled carbon nanotubes (MWCNTs) cause adverse health effects depending on the fiber length. In the present study a simple batch particle generation system was developed to generate airborne MWCNTs for inhalational toxicology studies. The generatio…
Thin film growth of multiferroic BiMn2O5 using pulsed laser ablation and its characterization, Shukla, D K, Kumar, Ravi, Sharma, S K, Thakur, P, Choudhary, R J, Mollah, S, Brookes, N B, Knobel, M, Chae, K H, Choi, W K
Low dielectric constant (low-k) SiOC films have been prepared by using an atmospheric pressure microplasma jet (APPJ) from mixtures of tetraethoxysilane (TEOS) and argon (Ar). By decreasing the Ar flow rate from 10 to 2 slm, the dielectric constant of films can be reduced almost linearly to values of about 2.1. Moreov…
This work features an alternative approach to the well-documented preparation of silica nanoparticles in protic media. We present here the one-pot synthesis of silica nanoparticles of adjustable size (between 18 and 174 nm), prepared and stabilized in organic nonalcoholic solvents. This novel route is based on hydroly…
The nanostructure of silica and hybrid thin film mesophases templated by phospholipids via an evaporation-induced self-assembly (EISA) process was investigated by grazing-incidence small-angle X-ray scattering (GISAXS). Diacyl phosphatidylcholines with two tails of 6 or 8 carbons were found to template 2D hexagonal me…
Spin and orbital contributions to the magnetic moment of rhenium have been studied across the magnetostructural transition in ${\text{Ca}}_{2}{\text{FeReO}}_{6}$ double perovskite employing x-ray magnetic circular dichroism (XMCD) at the $\text{Re}\text{ }{L}_{2,3}$ edges. Temperature-dependent measurements performed…
Since ZnSe is less toxic than cadmium based materials, ZnSe nanocrystal is a potential candidate for optoelectronic and fluorescent labelling applications. In this paper, colloidal ZnSe nanocrystals are successfully synthesized from zinc stearate and elemental selenium in a paraffin hot-matrix. The method is environme…
We investigated plasmon excitation and surface-enhanced Raman scattering (SERS) of crystal violet dye adsorbed on two-dimensionally (2D) close-packed gold nanostructures. With reference to the absorption maximum of colloidal nanoparticles, the 2D nanostructures showed red-shifted maxima at ∼560 and 740 nm. Interesting…
The spectrum of a weighted Dirac comb on the Thue-Morse quasicrystal is investigated by means of the Bombieri-Taylor conjecture, for Bragg peaks, and of a new conjecture that we call Aubry-Godrèche-Luck conjecture, for the singular continuous component. The decomposition of the Fourier transform of the weighted Dirac…
Abstract The optoelectronic response of a material governs its suitability for a wide range of applications, from photon detection to photovoltaic conversion. To conquer the material limitations and achieve improved optoelectronic responses, nanotechnology has been employed to arrange subunits with specific size‐depen…
A comparison was made between the electrochemical corrosion behaviour of electrodeposits prepared from sulphate, sulphamate and Watt's bath on mild steel substrate. Potentiodynamic polarisation tests, electrochemical impedance spectroscopy (EIS), SEM and XRD were the techniques used to characterise the corrosion behav…
This article is a part of our efforts to control the magnetic anisotropy in cyanide-based exchange-coupled systems with the eventual goal to obtain single-molecule magnets with higher blocking temperatures. We give the theoretical interpretation of the magnetic properties of the new pentanuclear complex {[Ni(II)(tmphe…
A test set of 10 molecules (open and ring forms of ozone and sulfur dioxide as well as water and hydrogen sulfide and their respective fluoro- and chloro-substituted analogs) of specific atmospheric interest has been formed as to assess the performance of various density functional theory methods in (hyper)polarizabil…
Power sector is one of the important infrastructures, which gets affected due to disasters leading to disruption in generation, transmission and distribution of electric power. One of the reasons is the deposition of pollutants on the insulators which start conducting during foggy weather conditions resulting in flash…
Understanding of colloidal nanocrystal growth mechanisms is essential for the syntheses of nanocrystals with desired physical properties. The classical model for the growth of monodisperse nanocrystals assumes a discrete nucleation stage followed by growth via monomer attachment, but has overlooked particle-particle i…
The conduction mechanism of a sol–gel driven ZnO Schottky diode has been investigated with various annealing temperatures. A dense and pore-free ZnO film has been fabricated for a metal–semiconductor–metal structure via the sol–gel method with Zn acetate as a precursor, ethanol as a solvent and ethanol amine as a chel…
Inorganic/polymer composite materials with controlled phases organized in layers with part of the inorganic material hosted by a hydrophilic polymer layer covalently bound to a hydrophobic polymer layer and the other part of the inorganic material in crystalline phases adsorbed onto the composite surface were prepared…