Materials Literature
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The X-ray absorption spectra of copper mixed ligand complexes, having hydroxamic acid as one of the ligands, have been recorded at the K-edge of copper at BL-8 Dispersive EXAFS beamline at the 2.5 GeV INDUS-2 Synchrotron, RRCAT, Indore, India. For the analysis of EXAFS data, crystallographic data of the complex or of…
The paper presents experimental results on influence of tungsten, molybdenum nanopowders and aluminum oxyhydroxide phase introduced into the molten pool on the corrosion resistance of welded joints. It was shown that the nature of nanopowders significantly impacts intercrystalline corrosion of the welding joint.
Si single quantum dots (QDs) and Si/Ge double QDs doped TiO2 films were successfully fabricated via layer-by-layer ion beam sputtering assisted by annealing treatment, and their morphology and optical absorption performance were analyzed in this paper. TEM images show that Si QDs and Si/Ge double QDs prepared in the T…
The magnetic tunnel junction (MTJ)-related materials such as CoFeB, CoPt, MgO, and Ru, and W were etched using CH3OH in a pulse-biased inductively coupled plasma system and the effect of bias pulsing (100% 30% duty percentage) on the etch characteristics of the MTJ-related materials was investigated at the substrate t…
This study focuses on the molecular behavior of two dendrimers containing a hydrophilic core group (carboxyl group) and hydrophobic branches (quinoxaline and methoxyphenyl groups), 2,3-bis(4-(2,3- bis(4-methoxyphenyl)quinoxalin-6-yloxy)phenyl)quinoxaline-6-carb-oxylic acid (G2) and 2,3-bis(4-(2,3-bis(4-(2,3-bis(4-meth…
Titanium isopropoxide (TIPO), tetraethyl orthosilicate (TEOS) and Fluoroalkylsilane (FAS) silane precursor were employed to coat transparent thin film on the glass substrate and these effectively prevents pollution on the glass from microorganisms. The each nanocomposition film was prepared by sol-gel method, the solu…
To understand the catalytic activity of Ag-Cu cluster as catalyst of ethylene oxidation, bare Ag and Cu and Ag core/Cu12 shell and Cu core/Ag12 shell are built and optimized by density functional theory calculations incorporating the effect of the atmospheric environment. Consequently different oxygen adsorption sites…
Aim. To perform a study of three-dimensional micro- and nanostructure of porous biocompatible scaffolds and quantitative analysis of nanoscale porosity parameters. Materials and methods . Three-dimensional porous scaffolds made from spidroin rS1/9 (recombinant analog of spider dragline protein) were produced by salt l…
High density plasma etching of ultrananocrystalline diamond (UNCD) films wasperformed in O2 and O2/Ar inductively coupled plasma (ICP) discharges. The O2/Ar ICP discharges produced higher etch rates due to enhanced physical component of the etching, and a maximum etch rate of -280 nm/min was obtained in 10 sccm O2/5 s…
Multiferroic materials which display the coexistence of ferromagnetism (FM) and ferroelectric (FE) polarization have drawn considerable attention due to their fundamental physical characteristics and potentially wide applications including tunable microwave devices. In a multiferroic material system, due to the mutual…
Although carbon nanotubes (CNTs) have extraordinary mechanical, thermal, and electrical properties, application of CNTs remains limited due to their unique nano-sized tubular forms. CNT electrodes have relatively high sheet resistance, which does not meet the industrial requirements of various electrode materials. Thu…
A new analytical drain current model for a quantitative description of output characteristics of graphene field-effect transistors (GFETs) in the sub-linear region is derived from a previously-developed diffusion-drift theory for GFETs. To simplify calculation, the diffusion-to-drift current ratio is assumed to be con…
In this work, we demonstrate that Ar gas flow can be optically detected using mechanical vibration of a semiconducting single-walled carbon nanotube (SWCNT) bundle as a platform. A change in the photoluminescence (PL) intensity was induced by out-of-focusing of the SWCNT bundle of interest due to vibration caused by t…
A finest possible sample of 4% Iron doped & cobalt doped BaTiO 3 (BTO) with possible tetragonal & cubic structure via solid state route was prepared. Prepared samples were characterized by X-ray diffraction (XRD) using by Bruker D8 advance XRD instrument, the value of 2Θ is in between 20 0 to 80 0 . X-ray photoelectro…
Glasses in the ternary and quaternary system SiO2-CaO-P2O5 ; SiO2-CaO-P2O5-Na2O were prepared by means of a sol-gel route starting from tetraethyl orthosilicate, calcium nitrate, TEP, and sodium nitrate. The obtained glasses were characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy…
Lead titanate with perovskite structure (PbTio 3 ) is a Single-phase polycrystalline sample. It has been synthesized using solid-state reaction technique and prepares phase pure, dense, crack-free, and homogeneous samples. Using X-ray diffraction patterns we investigate the sintering behavior of PT -powders. The X-ray…
The impacts of diffuse orbitals to the correlation/polarization potentials, and hence to the vibrational scattering cross sections, are investigated in this study. We compute the BTAD (better than adiabatic) and DSG (distributed spherical Gaussian) potentials based on the Dunning basis from cc-pVDZ to aug-cc-pV6Z, and…
In this work, we address the charge trapping properties of Ge dangling bond (DB) defects – GePb1 centers as typified by electron spin resonance spectroscopy (ESR) – found at the interfaces between condensation‐grown Si1−xGex (0.28 < x < 0.8) alloys and insulating SiO2. The ESR observation of singly‐occupied paramagnet…
An investigation is performed of the filtrational combustion of gaseous hydrocarbons inside a spherical nozzle manufactured from porous Ni-Al material. The porous material is produced using the process of self-propagating high temperature synthesis, which allows an article of the desired configuration, chemical compos…
X-ray photoelectron spectroscopy spectra and transmission electron microscopy images showed that SnO2 nanoparticles were randomly distributed in the polystyrene (PS) layer. Capacitance-voltage (C-V) measurements on the Al/SnO, nanoparticles embedded in PS layer/p-Si devices at 300 K showed a clockwise hysteresis with…