Results 31 to 40 of about 446,105 (325)

Material structure, properties, and dynamics through scanning transmission electron microscopy

open access: yesJournal of Analytical Science and Technology, 2018
Scanning transmission electron microscopy (STEM) has advanced rapidly in the last decade thanks to the ability to correct the major aberrations of the probe-forming lens. Now, atomic-sized beams are routine, even at accelerating voltages as low as 40 kV,
Stephen J. Pennycook   +7 more
doaj   +1 more source

The effect of carbon coating on the electrochemical performance of nanosized Li2FeSiO4 cathode materials [PDF]

open access: yes, 2013
Carbon-coated Li2FeSiO4/C cathode materials have been synthesized through a modified ball-milling pro- cess. The physical characterizations of Li2FeSiO4 were conducted by using X-ray powder diffraction, field-emission scanning electron microscopy and ...
Su, D, Wang, G, Wang, Y
core   +1 more source

Recent breakthroughs in scanning transmission electron microscopy of small species

open access: yesAdvances in Physics: X, 2018
Over the last decade, scanning transmission electron microscopy has become one of the most powerful tools to characterise nanomaterials at the atomic scale.
Karel Hendrik Wouter van den Bos   +4 more
doaj   +1 more source

Future Prospects of 3D Human Chromosome Imaging by Serial Block Face Scanning Electron Microscopy [PDF]

open access: yes, 2016
The higher order structure of human chromosomes remains to be elucidated with the 30 nm mystery still remaining. For internal structure determination, transmission electron microscopy (TEM) cannot be used as the chromosomes are too thick (approx.
Chen, B, Robinson, I, Yusuf, M
core   +1 more source

A combined FEG-SEM and TEM study of silicon nanodot assembly [PDF]

open access: yes, 2008
Nanodots forming dense assembly on a substrate are difficult to characterize in terms of size, density, morphology and cristallinity. The present study shows how valuable information can be obtained by a combination of electron microscopy techniques.
B. Caussat   +14 more
core   +3 more sources

Cathodoluminescence of silicon doped aluminum nitride with scanning transmission electron microscopy

open access: yesAPL Materials, 2020
Here, we apply cathodoluminescence in scanning transmission electron microscopy to infer the influence of dislocation strain fields on the formation of point defect complexes in Si doped AlN. In addition to identifying non-radiative recombination centers,
Matthew R. Hauwiller   +6 more
doaj   +1 more source

Synthesis and characterization of spherical amorphous alumo-silicate nanoparticles using RF thermal plasma method [PDF]

open access: yes, 2013
The RF thermal plasma synthesis route was used for the preparation of alumo-silicate spherical particles. Homogeneous solid mixtures of raw materials (Al2O3, SiO2 and KOH) were used as precursors.
Jankeviciutea, Audrone   +4 more
core   +1 more source

Biological Scanning Transmission Electron Microscopy: Imaging and Single Molecule Mass Determination

open access: yesCHIMIA, 2006
Scanning transmission electron microscopes can both measure the mass of single protein complexes and take amazingly clear images thereof, offering a wide range of applications in structural biology. The principle of mass measurement is presented
Shirley A. Müller, Andreas Engel
doaj   +1 more source

Interpretable and efficient contrast in scanning transmission electron microscopy with a diffraction grating beamsplitter

open access: yes, 2018
Efficient imaging of biomolecules, 2D materials and electromagnetic fields depends on retrieval of the phase of transmitted electrons. We demonstrate a method to measure phase in a scanning transmission electron microscope using a nanofabricated ...
Chess, Jordan J.   +11 more
core   +1 more source

Analysis and applications of a heralded electron source

open access: yesNew Journal of Physics
We analytically describe the noise properties of a heralded electron source made from a standard electron gun, a weak photonic coupler, a single photon counter, and an electron energy filter.
Stewart A Koppell   +5 more
doaj   +1 more source

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