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Article
Understanding the growth of ZnTe nanorods by mechanochemical synthesis: the role of structural defects
Considering that one understands how to control process variables during milling, the morphology of the final as-milled product could also be controlled. Therefore, if one considers the nature of precursors as...
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Article
Combined mechanochemical/thermal annealing approach for the synthesis of Co9Se8 with potential optical properties
Synthesis of Co9Se8 phase from metallic cobalt and selenium powders by one-pot mechanochemical synthesis in a planetary ball mill and subsequent thermal treatment in argon atmosphere is reported. Crystal structur...
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Article
The modification of structural and optical properties of nano- and submicron ZnO powders by variation of solvothermal syntheses conditions
Nano- (30–60 nm) and submicron (100–350 nm) ZnO particles were synthesized using solvothermal method at 200 °C from an ethanolic solution of zinc acetate dihydrate, applying different reaction conditions, i.e....
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Article
How to best measure atomic segregation to grain boundaries by analytical transmission electron microscopy
This study provides an overview of the recent experiments employing methods that analyse, systematically, series of analytical spectra acquired either in nanobeam mode in a transmission electron microscope or ...
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Article
The use of de-aggregating agents in ZnSe mechanochemical synthesis
Conventional mechanochemical synthesis of zinc selenide, ZnSe nanoparticles was performed in a planetary ball mill by high-energy milling of zinc (Zn) and selenium (Se) powders with the de-aggregating agents ZnCl
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Article
Solvothermal syntheses of nano- and micro-sized ZnO powders with a controllable morphology
Zinc oxide powders with different morphologies and grain sizes were synthesized using solvothermal methods from ethanolic zinc acetate solutions in the presence of lithium hydroxide. The influence of the tempe...
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Article
PbSe nanocubes obtained by high-energy milling
In this study, PbSe nanocubes were obtained by high-energy milling, and their optical properties were investigated by measuring the UV–VIS–IR spectra in the range of 200–2,000 nm. The optical absorption of all...
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Chapter and Conference Paper
Spectrometric Full-Color Cathodoluminescence Electron Microscopy Study of Grain Boundaries of ZnO Varistor
Scanning electron microscopy (SEM) with cathodoluminescence (CL) detection can draw a map of electronic states and chemical bonding in the specimen. The energy of CL photons gives information of Band Gap of se...
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Chapter and Conference Paper
ConceptEM: a new method to quantify solute segregation to interfaces or planar defect structures by analytical TEM and applications to inversion domain boundaries in doped zinc oxide
Multiple scattering of electrons within the specimen degrades the spatial resolution in scanning or nano-probe transmission electron microscopy (TEM). It also reduces significantly the chemical signal from a l...
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Article
A New Method to Measure Small Amounts of Solute Atoms on Planar Defects and Application to Inversion Domain Boundaries in Doped Zinc Oxide
We demonstrate the application of a new method of analytical transmission electron microscopy for measuring very accurately small amounts of solute atoms within a well-defined planar defect such as a stacking ...
