Scanning transmission electron microscopy and its application to the study of nanoparticles and nanoparticle systems

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Abstract

Scanning transmission electron microscopy (STEM) techniques can provide imaging, diffraction and spectroscopic information, either simultaneously or in a serial manner, of the specimen with an atomic or a sub-nanometer spatial resolution. High-resolution STEM imaging, when combined with nanodiffraction, atomic resolution electron energy-loss spectroscopy and nanometer resolution X-ray energy dispersive spectroscopy techniques, is critical to the fundamental studies of importance to nanoscience and nanotechnology. The availability of sub-nanometer or sub-angstrom electron probes in a STEM instrument, due to the use of a field emission gun and aberration correctors, ensures the greatest capabilities for studies of sizes, shapes, defects, crystal and surface structures, and compositions and electronic states of nanometer-size regions of thin films, nanoparticles and nanoparticle systems. The various imaging, diffraction and spectroscopy modes available in a dedicated STEM or a field emission TEM/STEM instrument are reviewed and the application of these techniques to the study of nanoparticles and nanostructured catalysts is used as an example to illustrate the critical role of the various STEM techniques in nanotechnology and nanoscience research.

Original languageEnglish (US)
Pages (from-to)251-278
Number of pages28
JournalJournal of Electron Microscopy
Volume54
Issue number3
DOIs
StatePublished - Jun 2005
Externally publishedYes

Fingerprint

Scanning Transmission Electron Microscopy
Nanoparticles
Transmission electron microscopy
nanoparticles
transmission electron microscopy
Scanning electron microscopy
scanning electron microscopy
Nanotechnology
Nanoscience
nanotechnology
Imaging techniques
Surface structure
Field emission
Electron Energy-Loss Spectroscopy
field emission
X-Ray Emission Spectrometry
Diffraction
spectroscopy
Firearms
Defect structures

Keywords

  • Auger
  • EDS
  • EELS
  • Electron microscopy
  • Nanodiffraction
  • Nanoparticle
  • SEM
  • STEM
  • Supported catalyst
  • Surface
  • Z-contrast microscopy

ASJC Scopus subject areas

  • Instrumentation

Cite this

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abstract = "Scanning transmission electron microscopy (STEM) techniques can provide imaging, diffraction and spectroscopic information, either simultaneously or in a serial manner, of the specimen with an atomic or a sub-nanometer spatial resolution. High-resolution STEM imaging, when combined with nanodiffraction, atomic resolution electron energy-loss spectroscopy and nanometer resolution X-ray energy dispersive spectroscopy techniques, is critical to the fundamental studies of importance to nanoscience and nanotechnology. The availability of sub-nanometer or sub-angstrom electron probes in a STEM instrument, due to the use of a field emission gun and aberration correctors, ensures the greatest capabilities for studies of sizes, shapes, defects, crystal and surface structures, and compositions and electronic states of nanometer-size regions of thin films, nanoparticles and nanoparticle systems. The various imaging, diffraction and spectroscopy modes available in a dedicated STEM or a field emission TEM/STEM instrument are reviewed and the application of these techniques to the study of nanoparticles and nanostructured catalysts is used as an example to illustrate the critical role of the various STEM techniques in nanotechnology and nanoscience research.",
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KW - Z-contrast microscopy

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