Skip to main content
×
Home
    • Aa
    • Aa

An Environmental Transmission Electron Microscope for in situ Synthesis and Characterization of Nanomaterials

  • Renu Sharma (a1)
Abstract

The world of nanomaterials has become the real world for most applications in the area of nanotechnology. As postsynthesis handling of materials at the nanoscale level is impractical, nanomaterials must be synthesized directly as part of a device or circuit. The demands of nanotechnology have led to modifications in the design of transmission electron microscopes (TEMs) that enable in situ synthesis and characterization simultaneously. The environmental TEM (ETEM) is one such modified instrument that has often been used to follow gas–solid and/or liquid–solid interactions at elevated temperatures. Although the history and development of the ETEM, also called the controlled atmosphere or environmental cell TEM, is as old as transmission electron microscopy itself, developments in the design of medium-voltage TEMs have succeeded in bringing resolutions down to the subnanometer level. A modern ETEM equipped with a field-emission gun, energy filter or electron energy-loss spectrometer, scanning transmission electron microscopy coils, and bright-field and dark-field detectors can be a versatile tool for understanding chemical processes at the nanometer level. This article reviews the design and operations of a dedicated ETEM. Its applications range from the in situ characterization of reaction steps, such as oxidation-reduction and hydroxylation, to the in situ synthesis of nanomaterials, such as quantum dots and carbon nanotubes. Some examples of the current and the future applications for the synthesis and characterization of nanomaterials are also discussed.

Copyright
Corresponding author
a)Address all correspondence to this author. e-mail: renu.sharma@asu.edu
References
Hide All
43 P.L. Gai and E.D. Boyes In Electron Microscopy of heterogeneous catalysis. Series in Microscopy and Materials Science (Institute of Physics Publishing, Bristol, Philadelphia, PA, 2003).

75 R. Sharma and P.A. Crozier Environmental transmission electron microscopy in nanotechnology, in Handbook of Microscopy for Nanotechnology, edited by N. Yao and Z.L. Wang (Kluwer Academic Publishers, Boston/New York/London, 2005, 1974) p. 531.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
  • URL: /core/journals/journal-of-materials-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords:

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 134 *
Loading metrics...

Abstract views

Total abstract views: 309 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 18th October 2017. This data will be updated every 24 hours.