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Automated electron diffraction tomography - development and applications.

Ute Kolb1, Yaşar Krysiak1, Sergi Plana-Ruiz2

  • 1Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, Mainz, 55128, Germany.

Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials
|August 25, 2020
PubMed
Summary
This summary is machine-generated.

Automated electron diffraction tomography (ADT) provides 3D data from nano-crystals for structure analysis. This reliable method is applicable to various electron microscopes and analyzes crystals with complex features like twinning and disorder.

Keywords:
disorder analysiselectron crystallographyelectron diffraction tomographynanomaterialssingle-crystal structure analysis

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Area of Science:

  • Materials Science
  • Crystallography
  • Electron Microscopy

Background:

  • Electron diffraction tomography (EDT) is gaining interest for analyzing nano-sized crystals.
  • Automated electron diffraction tomography (ADT) facilitates the collection of 3D electron diffraction data.
  • ADT is crucial for ab initio structure analysis of nanocrystalline materials.

Purpose of the Study:

  • To provide a comprehensive description of the ADT method.
  • To highlight the special features and broad applicability of ADT across different transmission electron microscopes.
  • To demonstrate the utility of ADT for crystal structure analysis, including complex cases.

Main Methods:

  • Utilizing automated electron diffraction tomography (ADT) for data acquisition.
  • Applying established crystallographic principles for structure determination.
  • Analyzing single nano-sized crystals using collected 3D diffraction data.

Main Results:

  • ADT is confirmed as a reliable and established method for 3D electron diffraction data collection.
  • The method demonstrates general applicability to various transmission electron microscopes.
  • Successful crystal structure analysis of nano-sized crystals, including those with twinning, modulations, and disorder, was achieved.

Conclusions:

  • ADT is a robust technique for the structural characterization of nanocrystalline materials.
  • The versatility of ADT allows for the analysis of crystals with challenging crystallographic features.
  • ADT significantly advances the field of nano-crystal structure determination.