Materials Literature
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Controlling the shape and size of the layered inorganic-organic hybrid particles is a challenge with conventional methods of synthesis. The co-precipitation method has been modified to synthesize Mg/Al Layered double hydroxide by controlling the particle growth using ultrasonic wave at the time of nucleation. In this…
We prepared ZnO nanoparticles by calcining the mesoporous precursors, which were prepared by a sol–gel method using Octadcylamine (ODA) and Pluronic F-127 (F-127) as template reagents, respectively. The diameters of the ZnO precursor and nanoparticle were about 10 nm and 60 nm. The electroluminescence (EL) spectra of…
Zinc oxide (ZnO) nanoparticle has been synthesized via sol-gel chemistry using zinc acetate as a precursor with sodium hydroxide solution through microemulsion technique. X-ray diffraction (XRD) and transmission electron microscopy (TEM) studies reveal that the resultant zinc oxide nanoparticles are wurtzite type with…
Optical, electrical and structural properties of hydrogenated amorphous carbon films deposited by radio frequency plasma enhanced chemical vapour deposition technique (RF-PECVED) have been investigated thoroughly. The films were deposited using a mixture of hydrogen and acetylene gases at a low substrate temperature o…
Abstract Polycrystalline undoped ZnO thin films were deposited on glass substrates by atomic layer deposition (ALD). Effects of surface pretreatments prior to the ALD growth have been investigated. In the relationship between grown film thickness and number of ALD cycles, an incubation period in which film growth is s…
Intense excimer laser pulses, flash lamp annealing and rapid thermal annealing were used to form Si nanocrystals in thin SiO(2) layers implanted with high doses of Si ions. The pulse durations were 20 ns, 20 ms and 1 s, respectively. Laser annealing produced light sources luminescing in the wavelength range of 400-600…
Abstract In recent years ZnO/SiO 2 nanocomposite thin films have attracted much attention for a wide range of device applications based on their specific optical and electrical properties. Mesoporous silica nanocomposite with controllable variation of size and shape of pores is the most challenging system for the gene…
Studies on the magnetic properties of nanocrystalline ZnFe2O4 synthesized by an autocombustion method are reported. Superparamagnetic behavior is observed for the nanocrystalline materials with particle sizes of 8 nm and 17 nm, with superparamagnetic blocking temperatures of 65 K and 75 K, respectively. Magnetic hyste…
The synthesis of a new DNA-mimetic π-conjugated poly( p -phenylenebutadiynylene) (polymer 9 ), which is functionalized with thymine nucleobases, as well as polyethylene glycol chains at every repeat unit is reported. This polymer was characterized by UV−vis, fluorescence, nuclear magnetic resonance, infrared, and Rama…
The Hot Filament Chemical Vapour Deposition (HFCVD) method was employed to study hydrogen adsorption on multi-walled carbon nanotubes (MWCNTs) modified by nickel doping. Prior to the nickel doping, effective functionalisation of CNTs was achieved by treating them in HNO3/H2O2 medium. Samples were characterized using S…
The effect of Mn substitution in Cu ferrite may present a challenge, as there are three transition metals ions distributed among the two available crystallographic sub lattices. This system also presents complicated super exchange interactions. In this study a series of five powdered samples with composition Cu(1-x)Mn…
Auger electron spectroscopy (AES) depth profiles using the Ni MVV (61 eV), C KLL (272 eV) and Ni LMM (848 eV) lines were recorded for a 3 × (Ni(40 nm)/C(28 nm))/Si substrate sample. It was found that the Auger intensities corresponding to pure regions of the depth profile changed with depth. The behaviour of the chang…
Abstract Divalent ions in a copper oxide matrix M 2+ Cu 2 O 2 have been intensively studied for the application field of p‐type transparent conductive oxides (TCOs) in order to achieve transparent electronic devices. In this paper, we are presenting our study of the growth and annealing conditions of SrCu 2 O 2 (SCO)…
Abstract The oxygen depletion and tensile properties of EVA resins blended with varying compositions and sizes of iron (Fe), modified iron (MFe) and ascorbic acid (Vc) oxygen scavengers were systematically investigated. After blending Vc together with varying sizes of MFe in EVA resins, “synergistic” oxygen depletion…
Gold nanoparticles supported on TiO2 and Al2O3 were prepared by using the deposition-precipitation with urea (DP Urea) method. The control of the particle size was achieved by varying both, the stirring time during the deposition-precipitation (DP) procedure and the conditions of thermal treatment. We focused mainly o…
Since the discovery of carbon nanotubes (CNTs), their remarkable properties make them ideal candidates to reinforce in advanced composites. In this attempt, an enhancement of mechanical properties of high density polyethylene (HDPE) by adding 1 wt% of CNTs is studied using Dynamic mechanical and Thermal analyzer (DMTA…
Nanocrystalline copper indium oxide (CuInO2) thin films with particle size ranging from 25 nm to 71 nm have been synthesized from a composite target using reactive Rf magnetron sputtering technique. X-ray photoelectron spectroscopy (XPS) combined with glancing angle X-ray diffraction (GAXRD) analysis confirmed the pre…
Abstract High‐impact polystyrene (HIPS)/organically modified montmorillonite (organoclay) nanocomposites were synthesized via in situ polymerization. The effects of the organoclay on the morphology and material properties of HIPS/organoclay nanocomposites were investigated. X‐ray diffraction and transmission electron…
Dielectric properties of Na and Al doped NiO (NANO) ceramics were studied as a function of frequency and temperature. Microstructures of polycrystalline samples reveal the grain size of 100–200 nm. The grain conductivity is higher than the grain boundary region. The concentration of Al has an excellent effect on the d…
The effects of both mechanical strain and oxidizing agents on grain boundaries in stainless steel can now be visualized.