Environmental TEM in Materials Research

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    Abstract

    Over the last decades, electron microscopy has played a large role in materials research. The increasing use of particularly environmental transmission electron microscopy (ETEM) in materials science provides new possibilities for investigating nanoscale components at work. Careful experimentation provides input for the development of new materials for e.g. energy production. In order to design experiments with the highest chance of a successful outcome, a detailed understanding of both the interaction of electrons with gas molecules, the effect of gas on high‐resolution imaging and the behavior in this environment is necessary. If data is to be interpreted quantitatively, interaction of the electrons with gas molecules must be taken into account. Whereas conventional TEM samples are usually thin (below 10‐20 nm), the dilute gas fills the entire gap between the pole pieces and is thus not spatially localized. Imaging samples with a simple geometry, such as gold particles on a flat graphene substrate and analyzing the variations in contrast provides a means for understanding the issues involved with imaging in the presence of a gas.

    In this work, capabilities, possibilities and challenges of using ETEM in materials research has been explored and highlighted with various examples.
    Original languageEnglish
    Publication date2013
    Number of pages1
    Publication statusPublished - 2013
    EventXXIV Brazilian Congress of Microscopy and Microanalysis - Hotel Gloria, Caxambu, Brazil
    Duration: 20 Oct 201323 Oct 2013
    Conference number: 24
    http://www.sigaeventos.com.br/xxivcsbmm/en/index.html

    Conference

    ConferenceXXIV Brazilian Congress of Microscopy and Microanalysis
    Number24
    LocationHotel Gloria
    CountryBrazil
    CityCaxambu
    Period20/10/201323/10/2013
    Internet address

    Activities

    • 1 Conference presentations

    Environmental TEM in Materials Research

    Thomas Willum Hansen (Invited speaker)

    20 Oct 201323 Oct 2013

    Activity: Talks and presentationsConference presentations

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    Cite this

    Hansen, T. W., & Wagner, J. B. (2013). Environmental TEM in Materials Research. Abstract from XXIV Brazilian Congress of Microscopy and Microanalysis, Caxambu, Brazil.