PISA – Transmission Electron Microscopy Laboratory (TEM)

GFZ - German Research Centre for Geosciences

last updated: July 19, 2023

About the Laboratory

PISA – Transmission Electron Microscopy Laboratory (TEM)

GFZ - German Research Centre for Geosciences

@ Section 3.5 Interface Geochemistry

This Laboratory is part of:

PISA – Potsdam Imaging and Spectral Analysis Facility laboratory complex
GFZ Research Infrastructure: Modular Earth Science Infrastructure MESI
Networks: Geo.X

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Description

The Transmission Electron Microscopy TEM laboratory is a state-of-the-art facility equipped with a FEI Tecnai G2 F20 X-Twin transmission electron microscope and a FEI FIB200TEM Focused Ion Beam device for specimen preparation. The laboratory provides powerful techniques for characterization of crystal structure, microstructures and chemical composition of materials down to a near atomic level.

Instruments

Transmission Electron Microscopy (TEM) are patterned after Transmission Light Microscopes and will yield similar information. Morphology The size, shape and arrangement of the particles, which make up the specimen as well as their relationship to each other on the scale of atomic diameters. Crystallographic Information The arrangement of atoms in the specimen and their degree of order, detection of atomic-scale defects in areas a few nanometers in diameter Compositional Information (if so equipped) The elements and compounds the sample is composed of and their relative ratios, in areas a few nanometers in diameter A TEM works much like a slide projector. A projector shines a beam of light through (transmits) the slide, as the light passes through it is affected by the structures and objects on the slide. These effects result in only certain parts of the light beam being transmitted through certain parts of the slide. This transmitted beam is then projected onto the viewing screen, forming an enlarged image of the slide. TEMs work the same way except that they shine a beam of electrons (like the light) through the specimen(like the slide). Whatever part is transmitted is projected onto a phosphor screen for the user to see. [Source: University of Nebraska-Lincoln] (Source: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 16.3 [...] )
TEM - Transmission Electron Microscope

Analytical Methods

Transmission Electron Microscopy (TEM) are patterned after Transmission Light Microscopes and will yield similar information. Morphology The size, shape and arrangement of the particles, which make up the specimen as well as their relationship to each other on the scale of atomic diameters. Crystallographic Information The arrangement of atoms in the specimen and their degree of order, detection of atomic-scale defects in areas a few nanometers in diameter Compositional Information (if so equipped) The elements and compounds the sample is composed of and their relative ratios, in areas a few nanometers in diameter A TEM works much like a slide projector. A projector shines a beam of light through (transmits) the slide, as the light passes through it is affected by the structures and objects on the slide. These effects result in only certain parts of the light beam being transmitted through certain parts of the slide. This transmitted beam is then projected onto the viewing screen, forming an enlarged image of the slide. TEMs work the same way except that they shine a beam of electrons (like the light) through the specimen(like the slide). Whatever part is transmitted is projected onto a phosphor screen for the user to see. [Source: University of Nebraska-Lincoln]
Transmission Electron Microscopy (TEM) are patterned after Transmission Light Microscopes and will yield similar information. Morphology The size, shape and arrangement of the particles, which make up the specimen as well as their relationship to each other on the scale of atomic diameters. Crystallographic Information The arrangement of atoms in the specimen and their degree of order, detection of atomic-scale defects in areas a few nanometers in diameter Compositional Information (if so equipped) The elements and compounds the sample is composed of and their relative ratios, in areas a few nanometers in diameter A TEM works much like a slide projector. A projector shines a beam of light through (transmits) the slide, as the light passes through it is affected by the structures and objects on the slide. These effects result in only certain parts of the light beam being transmitted through certain parts of the slide. This transmitted beam is then projected onto the viewing screen, forming an enlarged image of the slide. TEMs work the same way except that they shine a beam of electrons (like the light) through the specimen(like the slide). Whatever part is transmitted is projected onto a phosphor screen for the user to see. [Source: University of Nebraska-Lincoln] (Source: NASA; UUID: e5ab49d5-5f99-43d6-85bd-8db629f7bc7b) (Source: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 16.3 [...] )
TEM - Transmission Electron Microscopy
The Energy Dispersive Analysis of X-ray (EDAX) is a tool that determines the chemical composition of elements.
The Energy Dispersive Analysis of X-Ray (EDAX) is a tool that determines the chemical composition of elements. (Source: NASA; UUID: b3a7155c-5089-4388-a148-8d4defc520f8); Measurement method of X-Ray fluorescence analysis in which the energies and intensities of characteristic X-radiation are used to measure amounts of elements. (Source: IUPAC; https://doi.org/10.1515/pac-2019-0302) (Source: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 16.3 [...] )
EDAX - Energy Dispersive Analysis of X-Ray
EDS, EDX, EDXA, EDXS, Energy Dispersive X-Ray Microanalysis, Energy Dispersive X-Ray Spectroscopy, Energy-dispersive X-Ray Analysis, Energy-dispersive X-Ray Spectroscopy, XEDS

Laboratory Keywords

In addition to the instruments and analytical methods listed above, these keywords help to describe the work done in the laboratory. This may include the type of samples, standard materials, specific preparative or analytical methods and specific instrument characteristics.

Disciplines

Geoscience > Geochemistry > Geochemistry
Geochemistry
Geoscience > Geology > Geology
Geology

Links

Key Publications: