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Journal ArticleDOI

Electron tomography and holography in materials science

TLDR
An overview of the techniques of electron tomography and electron holography is presented and their capabilities with the aid of case studies that span materials science and the interface between the physical sciences and the life sciences are demonstrated.
Abstract
The rapid development of electron tomography, in particular the introduction of novel tomographic imaging modes, has led to the visualization and analysis of three-dimensional structural and chemical information from materials at the nanometre level. In addition, the phase information revealed in electron holograms allows electrostatic and magnetic potentials to be mapped quantitatively with high spatial resolution and, when combined with tomography, in three dimensions. Here we present an overview of the techniques of electron tomography and electron holography and demonstrate their capabilities with the aid of case studies that span materials science and the interface between the physical sciences and the life sciences.

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Citations
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Journal ArticleDOI

Synthesis of MoS2 and MoSe2 Films with Vertically Aligned Layers

TL;DR: This communication presents a synthesis process to grow MoS2 and MoSe2 thin films with vertically aligned layers, thereby maximally exposing the edges on the film surface, and confirmed their catalytic activity in a hydrogen evolution reaction (HER), in which the exchange current density correlates directly with the density of the exposed edge sites.
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Three-dimensional optical holography using a plasmonic metasurface

TL;DR: Huang et al. as mentioned in this paper developed ultrathin plasmonic metasurfaces to provide 3D optical holographic image reconstruction in the visible and near-infrared regions for circularly polarized light.
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Towards stable catalysts by controlling collective properties of supported metal nanoparticles

TL;DR: This work presents an alternative strategy based on control over collective properties, revealing the pronounced impact of the three-dimensional nanospatial distribution of metal particles on catalyst stability and paves the way towards the rational design of practically relevant catalysts and other nanomaterials with enhanced stability and functionality.
Journal ArticleDOI

Coherent X-ray diffraction imaging of strain at the nanoscale.

TL;DR: New X-ray diffraction techniques, which take advantage of the latest synchrotron radiation sources, can be used to obtain quantitative three-dimensional images of strain, leading to new knowledge of how nanomaterials behave within active devices and on unprecedented timescales.
Journal ArticleDOI

Three-dimensional atomic imaging of crystalline nanoparticles

TL;DR: 3D reconstruction of a complex crystalline nanoparticle at atomic resolution is reported, which helps close the gap between the atomic resolution achievable in two-dimensional electron micrographs and the coarser resolution that has hitherto been obtained by conventional electron tomography.
References
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Journal ArticleDOI

Z-Contrast tomography: a technique inthree-dimensional nanostructural analysis based on Rutherfordscattering

TL;DR: A method for determining the three-dimensional structure of organisms using images formed from Rutherford scattered electrons, at a spatial resolution of 1 nm in all directions, is described in this paper.
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Three-Dimensional Transmission Electron Microscopy: A Novel Imaging and Characterization Technique with Nanometer Scale Resolution for Materials Science

TL;DR: Three-dimensional transmission electron microscopy (3D-TEM), effectuated by multiple imaging of a sample combined with image analysis, offers a new approach in materials science to obtain 3D information as discussed by the authors.
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Transmission microscopy without lenses for objects of unlimited size.

TL;DR: This work demonstrates experimentally, for the first time, a new form of lensless microscopy that contains the entire wavefunction emanating from the sample and large scale, quantitative phase information can be measured, unlike in conventional (Zernike) methods.
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Recent Advances in Electron Tomography: TEM and HAADF-STEM Tomography for Materials Science and Semiconductor Applications

TL;DR: Analysis of catalysts, a hydrogen storage material, and different semiconductor devices shows that features with a diameter as small as 1–2 nm can be resolved in three dimensions by electron tomography.
Journal ArticleDOI

Transmission electron microtomography without the "missing wedge" for quantitative structural analysis.

TL;DR: 3D visualization and structural analysis of a rod-shaped specimen of a zirconia/polymer nanocomposite material carried out by transmission electron microtomography with particular emphasis on complete rotation of the specimen, suggesting that the specimen may have to be tilted to +/-80 degrees for truly quantitative measurements.
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