We report results both experimental and theoretical on the dynamics of hot electron transport in GaAs. Total elastic and inelastic scattering rates are calculated and compared with the results of a new experimental technique "Hot Electron Spectroscopy". The magnetic field dependence of hot electron spectra has been studied. It is shown that application of a magnetic field normal to the injectio...

   Nickel-molybdenum oxidebimetallic nanoparticles were synthesized in ethylene glycol using the microwave irradiation technique. According to the results, successive reduction of nickel and molybdenum ions, followed by thermal treatment of obtained nanoparticles led to formation of core-shell structured nickel-molybdenum oxide nanoparticles. According to the results, the thickness of the s...

CeO2/ZnO nanocomposites were synthesized by microwave method that is the fast process. One of an eco-friendly solvent, ethylene glycol were used the effect of time and power of irradiation were investigated on morphology and size of nanoparticle. Prepared CeO2/ZnO nanocomposites are characterized with X-ray diffraction (XRD) analysis, Transmission Electron Microscopy (TEM), Fourier Transform In...

The principles of the electron impact methods Electron Energy Loss (EEL) spectroscopy, Electron Transmission (ET) spectroscopy, measurement of EnergyDependence (ED) of vibrational excitation, and Dissociative Attachment (DA) spectroscopy are briefly introduced. The possibilities of modem instrumentation are illustrated with the examples of molecular oxygen and 1,3-butadiene. The following subje...

The emission of lepton pairs out of the hot and dense collision zone of heavy ion reactions is a promising probe to study the electromagnetic structure of hadrons under extreme conditions. The reconstruction of low-mass vector mesons (ρ, ω, φ) is one of the prime tasks of the CBM experiment. In this report, we present the status of simulations of the electron pair measurement in CBM and compare...

in this work we synthesized of mesoporous silica nanoparticles and functionalized with 3-aminopropyltriethoxysilane to improve the loading and release of ibuprofen bonded to 3-aminopropyltriethoxysilane. sample were characterized by fourier transform infrared spectroscopy, scanning electron microscopy , x-ray diffraction, and ultraviolet-visible. the fourier transform infrared spectroscopy resu...

Spectroscopy to characterize several functional materials. Along with the fast development of science and technology, the studied materials is becoming more complicated and smaller. All these achievements has advanced with the fast development of powerful tools currently, such as Scanning electron microscopy(SEM), Focused Ion Beam(FIB), Transmission electron microscopy(TEM), Electron energy los...

we report the growth by ion exchange synthesis of zns nanoparticles in mcm-41 matrices using zn (ch3coo)2 and na2s starting sources. the final product (zns/mcm-41) was characterized by x-ray diffraction (xrd) pattern, transmission electron microscopy (tem), scanning electron microscopy (sem), infrared spectrometry (ir) and uv-vis spectroscopy. its crystalline structure and morphology was studie...

in the present work, we report a suitable approach for the preparation of batio3 nanostructures via the hydrothermal condition using dolapix et85 as surfactant. the powders were investigated by x-ray diffraction (xrd), scanning election microscopy (sem), energy-dispersive x-ray spectroscopy (edax), field emission transmission electron microscopy (fetem), selected area electron diffraction (saed...