Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The evolution of surface morphology and (1 1 1) texture of Ag metallization on indium tin oxide (ITO) were improved by Cu additions to the Ag layer. X-ray diffraction (XRD) and atomic force microscopy (AFM) were used to characterize the surface morphology and the texture evolution of Ag(Cu). These results were compare…
Abstract Indium tin oxide (ITO) films have been deposited onto glass substrates at room temperature by ion beam assisted deposition technique (IBAD) at different ion beam currents (80–120 mA). The effect of the ion beam current on films properties has been studied. The films prepared at low ion beam current (80 mA) sh…
Our previous work revealed that significant enhancement in sp3-carbon content of amorphous carbon films could be achieved when grown on nanocrystalline palladium interlayer as compared to those grown on bare silicon substrates. To find out why, the nature of interface formed in both the cases has been investigated usi…
The evolution of iron catalyst particles during aerosol (floating catalyst) Chemical Vapor Deposition (CVD) synthesis of Carbon Nanotubes (CNTs) from CO is computed using a multi species Computational Fluid Dynamics (CFD) model incorporating a lognormal aerosol method of moments (MOM) to describe their dynamics and a…
Abstract We investigated the electronic structures, magnetism, and half‐metallicity at the (001) surfaces of full‐Heusler alloys, Co 2 MSi (M = Ti, Cr), by using the all‐electron full‐potential linearized augmented plane wave method within the generalized gradient approximation. Both the Co‐terminated (Co‐term) and th…
Nanocrystalline silicon thin films were grown using gaseous mixture of 5% silane (SiH4) diluted in hydrogen (H2) and argon (Ar) in a radio frequency (13.56 MHz) plasma enhanced chemical vapor deposition technique. These films were deposited as a function of pressure and were characterized using AFM, Laser Raman, UV-VI…
Nanocrystallites (15-25 nm) of Mn doped ZnO prepared by refluxing their acetate precursors in the presence of diethylene glycol, self-assemble into polydisperse spheres of broad size distributation (100-400 nm). The center of X-ray diffraction peaks shifts towards lower angle and the line gets broadened on increasing…
Ceria‐ or Cu‐doped ceria nanocrystals with a uniform diameter of about 4–5 nm have been successfully synthesized directly via a hydrothermal treatment of the precipitate Ce(OH) 3 (purple) or Cu‐doped Ce(OH) 3 in a strongly basic solution of sodium hydroxide at 180°C for 24 h. The formation of the nanocrystals involves…
Abstract ZnO thin films were deposited onto flexible Poly‐Ethylene Terephthalate and Poly‐Ethylene Naphthalate substrates in an ultra‐high vacuum chamber by Pulsed DC Magnetron Sputtering. The process took place at room temperature and in argon atmosphere with fixed pressure, by applying two different power values on…
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…