نتایج جستجو برای: energy dispersive x rays edx

تعداد نتایج: 1254943  

2014
Bart Goris Bert Freitag Daniele Zanaga Eva Bladt Thomas Altantzis Jan Ringnalda Sara Bals

In principle, energy dispersive X-ray (EDX) mapping can be combined with electron tomography since the number of generated X-rays scales linearly with sample thickness. However, early attempts to perform 3D EDX experiments were complicated by the specimen-detector geometry [5]. Therefore, recent efforts lead to a novel design of the EDX detector system, which enables one to apply 3D EDX mapping...

2012
E. VASILE R. PLUGARU S. MIHAIU A. TOADER

The microstructure and micro-composition of ZnO thin films doped with Al, deposited on Si/SiO2 substrates by sol-gel method were investigated by scanning and high resolution transmission electron microscopy and related energy dispersive X-ray analyses (SEM-EDX, STEM-HRTEM/EDX). Thin films of ZnO were prepared by deposition of 1-10 successive layers with 0.5 at.% and 5 at.% Al concentrations. Th...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
jan nisar niamat ullah iftikhar ahmad awan khalid khan imtiaz ahamd

thermal decomposition of two coal samples obtained from top seam sibi (tss) and sore range quetta (srq) coal fields in their raw and acid washed forms were carried out in an open type tubular pyrolyzer coupled to a gas chromatograph with fid. elemental analyses were carried out with scanning electron microscope-energy dispersive x-rays (sem-edx) analyzer. effect of inherent mineral contents on ...

Journal: :Nanotechnology 2015
Wayne Yang Yuning Zhang Michael Hilke Walter Reisner

High resolution nanoscale imaging in liquid environments is crucial for studying molecular interactions in biological and chemical systems. In particular, electron microscopy is the gold-standard tool for nanoscale imaging, but its high-vacuum requirements make application to in-liquid samples extremely challenging. Here we present a new graphene based wet cell device where high resolution scan...

Journal: :international journal of nanoscience and nanotechnology 2015
m. najafi h. haratizadeh

europium (eu) doped zno microsphere based nano-sheets were synthesized through hydrothermal method. effects of different concentrations of europium on structural and optical properties of zno nano-sheets were investigated in detail. prepared un-doped and eu-doped zno samples were characterized using x-ray diffraction (xrd), energy dispersive x-ray spectroscopy (edx), scanning electron microscop...

Journal: :journal of nanostructures 2012
m. salavati-niasari m. ranjbar d. ghanbari

zns  nanoparticles  were  synthesized  via  a  simple  surfactant  free microwave  route.  in  this  synthesis, thioacetamide  was  used  as sulfur  source.  the effects  of different  parameters  such  as  type of zinc precursor,  time  and  power  of  irradiation  on  the  morphology and  particle  size  of  the  products  have been  investigated.  the nanostructures  were  characterized  by ...

Nanomaterials are attracted a great deal of attention from scientific community due to its unique properties and applications. The small size ferrites have opened the door for intensive research to utilize their properties for biomedical applications. Cobalt ferrite nanomaterials and its silver doped (Ag-doped) nanocomposites have been prepared using solid state combustion method. This combusti...

2014
K. IBRAHIM M. H. EISA M. A. ALRAJHI

This paper studies the properties of thermally evaporated 1 μm of aluminium (Al) thin films on polyimide (PI) and polyethylene terephthalate (PET) substrates at room temperature with thermal evaporation in a vacuum of about 3 x 10 -5 Torr for use as window materials for solar cells. Effects of substrate types on the structural and electrical characteristics of the films were studied. Sets of ex...

D. Ghanbari Gholamreza Nabiyouni, N. Ahmadvand N. Najafi

The Fe nanowires were prepared by Ac electrodeposition method. The two steps anodized aluminum oxides (alumina) were used as templates for electrodeposition of magnetic nanowires. Sulfuric acid was used to anodize aluminum. The pours diameter and growth rate of alumina were investigated. The FeSO4 electrolyte was used for growth of nanowires. The prepared magnetic nanowires were characterized b...

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