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In this study we report the fabrication of pure CeCO2, ZnO deposited CeCO2 hybrid core-shell nanoparticles by simple and cost effective co precipitation method. The as synthesized samples were characterized by various experimental techniques such as XRD (X-ray diffraction), FTIR (Fourier Transform Infrared Spectroscopy), UV-Vis absorbance and HRTEM (High Field Transmission Tunneling Microscopy) measurements...
In this study sol-gel technique was used to prepare Al-, V- and In-doped ZnO. The morphology and microstructure of samples synthesized was characterized by means of different techniques such as X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM and TEM). The characterization results indicated that all as-prepared doped samples maintains the same morphology and microstructure...
The evolution of space charges in Polypropylene (PP) filled with synthetic and natural nanoclay after aging with −25 kV/mm DC field under 50 °C were investigated. Following certain periods of aging, the space charge was measured by the PEA technique. The PP materials, bases for the two types of Polymer nanocomposites, i.e. PP were loaded with synthetic and natural nanoclay. The unfilled PP contains...
Chitosan-gold nanocomposite has been synthesized by the Turkevich method and the final properties of nanocomposite have been investigated using electrical impedance spectroscopy, UV-vis spectroscopy, TEM and potentiometric measurements. We explore the possibility to detect copper ions using electrical impedance measurements in a linear range of 1–60 ppm, and using potentiometric measurements in a...
Research interest on transportation of ion through nanoscale geometries has increased recently due to its emerging applications such as energy harvesting, biomolecule concentration/separation, water purification, chemical mixing etc. Besides of application studies using ion transportation, the fundamental research for revealing and understanding mechanism has been carried out by many research groups...
The 2D janus hybrid (gold NPs/graphene) superstructures were built via a rapid, solventless sputtering method in 10 seconds. The size and morphology of gold NPs can be fine controlled by adjusting the sputtering current and time. The resulting graphene hybrids also enjoyed tunable area density and desirable thermal stability.
A dimer is the simplest form of cluster that exhibits some of the salient properties resulting from coupling interactions between the particles. The semiconductor nanodimer is a self-contained nanostructure supporting the intensification of the local electric field as a result of plasmon resonance and proximity effects. By means of a simulation framework based on charge transport analysis for the...
To meet the requirements for future fine pitch and high-performance interconnects in advanced packaging, ICAs with nano-materials are attracting more and more interest due to their specific electrical, mechanical and optical properties. There has been extensive research on nano-conductive adhesives containing nanofillers such as nanoparticles, nanowires or carbon nanotubes. In this paper, copper nanoparticles...
A novel SiC doped SAC305 composite solder was developed by mechanically mixing various amount of the SiC whiskers with Sn-3.0Ag-0.5Cu solder paste. The effect of SiC whiskers addition on microstructure, microhardness and wettability of the composite solders was investigated. It was found that the eutectic structure was refined in the composite solder, and both of the microhardness and wettability...
Sn-3.5Ag nanosolder in tiny sizes can provide a practical way to solve the high soldering temperature problem of lead-free solder alloy in fine pitch interconnectivity owing to the unique nanosize effect and meantime stand a higher working temperature just as the bulk material after welding. In this paper, a simple approach to synthesis Sn-3.5Ag nanoparticles by chemical reduction at room temperature...
A hybrid, nanocomposite carbon nanotube (CNT) sheet decorated with cobalt oxide (Co3O4) serving as gas sensor was fabricated for detecting hydrogen (H2). In order to improve performance of the sensor, Co3O4 nanoparticles were decorated on the surface area of the CNT sheets by electrodeposition, which is an easy and simple method for fabricating hybrid composites. Moreover, the effect of surface area...
SnO2 nanoparticles possess optical and electrical properties that make them suitable for the fabrication of UV photodetectors. This paper presents the material fabrication and characterization followed by the device fabrication and characterization of a SnO2 colloidal nanoparticles based ultraviolet photodetector. The fabricated detector exhibits a high signal to noise ratio of 5.8 × 103 low dark...
Since, Graphene Oxide exhibits exciting photoluminescence (PL) properties, the aim is to enhance the PL property of Graphene oxide by the functionalization with noble metals such as gold and silver. We also attempt to study the effect of Q-dot such as CdS nanoparticles to observe the optical properties of Graphene oxide. The concept of fluorescence is commonly explained by the electron-hole recombination...
Metals are centrosymmetric materials which only posse local surface second-harmonic (SH) nonlinearities due to the symmetry broken at the surface. In this work the surface integral equation (SIE) is used for evaluating SH radiation generated from metal nanoparticles with arbitrary shapes. The whole SIE system is solved by employing the Galerkin testing procedure and Rao-Wilton-Gillson (RWG) basis...
Photoluminescence properties of the low-dimensional semiconductor nanostructures of materials with indirect electronic band gap are studied theoretically with an emphasis put on the coupling of charge carriers to the atomic lattice vibrations. The photoluminescence intensity decay time dependence, the temperature dependence of the photoluminescence as well as the dependence of the photoluminescence...
Nanoparticle arrays containing metallic and dielectric nanoparticles at defined locations provide unique opportunities for controlling light field distributions in both spatial and frequency domain as well as for engineering intricate phase landscapes. We will introduce in this paper novel template guided self-assembly approaches that facilitate the integration of electromagnetically strongly coupled...
Alumina nanoparticles have been increasingly used in the areas of medicine, biochemistry and industry. A number of chemical methods have been used for the preparation of alumina nanoparticles, including the introduction of surfactants to improve the suspensivity of the nano-sized particles. In this study, alumina (Al2O3) nanoparticles have been fabricated by using Electrical Discharge Machining (EDM)...
Halloysite Clay nanotubes (HNTs) are naturally occurring nanotubes composed of double layered aluminosilicate minerals with a hollow tubular structure in the nanometer range. In recent years, HNTs have attracted specific research attention as a possible new material for various biological applications, including drug and gene delivery vehicles, ultrasound contrast agents, cancer and stem cells isolation...
A novel SiC doped SAC305 composite solder was developed by mechanically mixing various amount of the SiC whiskers with Sn-3.0Ag-0.5Cu solder paste. The effect of SiC whiskers addition on microstructure, microhardness and wettability of the composite solders was investigated. It was found that the eutectic structure was refined in the composite solder, and both of the microhardness and wettability...
Sn-3.5Ag nanosolder in tiny sizes can provide a practical way to solve the high soldering temperature problem of lead-free solder alloy in fine pitch interconnectivity owing to the unique nanosize effect and meantime stand a higher working temperature just as the bulk material after welding. In this paper, a simple approach to synthesis Sn-3.5Ag nanoparticles by chemical reduction at room temperature...
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