Electron tomography for functional nanomaterials

@article{Hovden2020ElectronTF,
  title={Electron tomography for functional nanomaterials},
  author={Robert Hovden and David A. Muller},
  journal={arXiv: Applied Physics},
  year={2020}
}
Modern nanomaterials contain complexity that spans all three dimensions - from multigate semiconductors to clean energy nanocatalysts to complex block copolymers. For nanoscale characterization, it has been a long-standing goal to observe and quantify the three-dimensional (3D) structure - not just surfaces, but the entire internal volume and the chemical arrangement. Electron tomography estimates the complete 3D structure of nanomaterials from a series of two-dimensional projections taken… 

Figures from this paper

Rapid Holographic Display of 3D Nanomaterials

Electron tomography reveals a specimen’s entire internal and external morphology but the experimental acquisition and the subsequent volumetric reconstruction is a time-consuming process that often

Recent Progress on Revealing 3D Structure of Electrocatalysts Using Advanced 3D Electron Tomography: A Mini Review

Electrocatalysis plays a key role in clean energy innovation. In order to design more efficient, durable and selective electrocatalysts, a thorough understanding of the unique link between 3D

Determination of the 3D Atomic Structures of Nanoparticles

Nanoscience has developed over the last three decades. The development is largely driven by the intriguing properties of nanoparticles that are not observed in their bulk counterparts. The newly

Deep learning in electron microscopy

TLDR
This review paper offers a practical perspective aimed at developers with limited familiarity of deep learning in electron microscopy that discusses hardware and software needed to get started with deep learning and interface with electron microscopes.

Nanoscale x-ray and electron tomography

<jats:p><jats:fig position="anchor"><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mime-subtype="png" mimetype="image" position="float" xlink:href="S0883769420000901_figAb.png"

References

SHOWING 1-10 OF 60 REFERENCES

Electron ptychographic microscopy for three-dimensional imaging

TLDR
Three-dimensional ptychographic imaging with electrons has remained a challenge because, unlike X-rays, electrons are easily scattered by atoms, but multi-slice methods to electrons in the multiple scattering regime are extended, paving the way to nanometer-scale 3D structure determination with electrons.

Nanomaterial datasets to advance tomography in scanning transmission electron microscopy

TLDR
Five high-quality scanning transmission electron microscope (STEM) tomography datasets are presented in order to address the critical need for open access data in this field.

Three-dimensional morphology of iron oxide nanoparticles with reactive concave surfaces. A compressed sensing-electron tomography (CS-ET) approach.

TLDR
It is shown that quantitative ET is enhanced greatly by the application of compressed sensing (CS) techniques to the tomographic reconstruction and the robust performance of the CS-ET algorithm with undersampled data should allow rapid progress with time-resolved 3D nanoscale studies, 3D atomic resolution imaging, and cryo-tomography of nanoscales cellular structures.

Electron tomography at 2.4-ångström resolution

TLDR
The experimental demonstration of a general electron tomography method that achieves atomic-scale resolution without initial assumptions about the sample structure is reported, and it is anticipated that this general method can be applied not only to determine the 3D structure of nanomaterials at atomic- scale resolution, but also to improve the spatial resolution and image quality in other tomography fields.

Diffraction imaging of nanocrystalline structures in organic semiconductor molecular thin films

TLDR
Scanning electron nanobeam diffraction is used to monitor the morphology of organic thin films with nanometre resolution, revealing information on the arrangement of crystalline domains useful for structure–property relationship understanding.

Extending Energy-Filtered Transmission Electron Microscopy (EFTEM) into Three Dimensions Using Electron Tomography

TLDR
It is concluded that the image contrast, signal, and signal-to-noise ratio (SNR) are key to the achievable reconstruction quality and, as such, the technique may be of limited value for high energy loss/small inelastic cross section edges.
...