Concept

Electron tomography

Publications associées (93)

Energy-filtered environmental transmission electron microscopy for the assessment of solid-gas reactions at elevated temperature: NiO/YSZ-H-2 as a case study

Jan Van Herle, Cécile Hébert, Aïcha Hessler-Wyser, Quentin Thomas Jeangros

A novel approach, which is based on the analysis of sequences of images recorded using energy-filtered transmission electron microscopy and can be used to assess the reaction of a solid with a gas at elevated temperature, is illustrated for the reduction o ...

Elsevier Science Bv2016

Atomic bonding effects in annular dark field scanning transmission electron microscopy. I. Computational predictions

Matteo Cococcioni

Annular dark field scanning transmission electron microscopy (ADF-STEM) image simulations were performed for zone-axis-oriented light-element single crystals, using a multislice method adapted to include charge redistribution due to chemical bonding. Exami ...

American Vacuum Society2016

Three-dimensional electron imaging of dislocations from a single sample tilt

Pascal Fua, Cécile Hébert, Emad Oveisi, Antoine Letouzey

Linear crystal defects called dislocations are one of the most fascinating concepts in materials science that govern mechanical and optoelectronic properties of many materials across a broad range of application. Three-dimensional (3-D) study of dislocatio ...

Wiley2016

Investigation of resins suitable for the preparation of biological sample for 3-D electron microscopy

Giovanni Longo

In the last two decades, the third-dimension has become a focus of attention in electron microscopy to better understand the interactions within subcellular compartments. Initially, transmission electron tomography (TEM tomography) was introduced to image ...

Elsevier2015

Three-Dimensional STEM Imaging of Dislocations

Emad Oveisi

To gain further insight into the fabrication and to improve the mechanical and optoelectronic properties of materials at the nano-scale, new experimental methods that permit thorough but fast and reliable multi-dimension microstructural and defect analyses ...

EPFL2015

Imaging and characterization of gamma ' and gamma '' nanoparticles in Inconel 718 by EDX elemental mapping and FIB-SEM tomography

Philippe Buffat

Microstructural characterization of Inconel 718 superalloy after three different heat treatment variants was performed by electron microscopy and electron tomography techniques, taking advantage of recent development in quantitative electron microscopy. Di ...

Elsevier Science Inc2015

Numerical correction of anti-symmetric aberrations in single HRTEM images of weakly scattering 2D-objects

Andras Kis, Ming-Wei Chen

Here, we present a numerical post-processing method for removing the effect of anti-symmetric residual aberrations in high-resolution transmission electron microscopy (HRTEM) images of weakly scattering 2D-objects. The method is based on applying the same ...

Elsevier2015

Nanocomposite Semi-Solid Redox Ionic Liquid Electrolytes with Enhanced Charge-Transport Capabilities for Dye-Sensitized Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Magdalena Anna Marszalek

The ability of Pt nanostructures to induce the splitting of the I-I bond in iodine (triiodide) molecules is explored here to enhance electron transfer in the iodine/iodide redox couple. Following the dispersal of Pt nanoparticles at 2% (weight) level, char ...

Wiley-VCH Verlag Berlin2015

Isotropic Inverse-Problem Approach for Two-Dimensional Phase Unwrapping

Michaël Unser, Demetri Psaltis, Ulugbek Kamilov

We propose a new technique for two-dimensional phase unwrapping. The unwrapped phase is found as the solution of an inverse problem that consists in the minimization of an energy functional. The latter includes a weighted data fidelity term that favors spa ...

JOSA2015

Rendering graphene supports hydrophilic with non-covalent aromatic functionalization for transmission electron microscopy

Henning Paul-Julius Stahlberg, Radosav Svetozara Pantelic

Amorphous carbon films have been routinely used to enhance the preparation of frozen-hydrated samples for transmission electron microscopy (TEM), either in retaining protein concentration, providing mechanical stability or dissipating sample charge. Howeve ...

AIP Publishing2014

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