Titan ETEM Themis for Materials Science

The best in situ S/TEM platform gets even better

Understand materials' structure-function relationship by enabling in situ studies at the atomic scale.

In situ observation of structure dynamics at length scales that are characteristic for nanostructures is extremely important to scientists focusing on atomic-scale research.

The FEI Titan™ ETEM Themis builds on the proven Titan ETEM concept-combining both standard S/TEM and dedicated environmental TEM capabilities for time-resolved, in situ studies of the dynamic behavior of nanomaterials.

The Titan ETEM Themis is designed as a fully integrated platform for in situ experiments, such as exposing nanostructures to gaseous reaction/operating environments. 

With the Titan ETEM Themis, you can:

  • Study gas-solid interactions, including shape and morphology changes, as well as interactions at surfaces and interfaces of nanostructures.
  • Observe functional nanomaterials and their time-resolved responses to gas and other in situ stimuli.
  • Gain insight into geometric and electronic structure, as well as elemental composition of functional nanomaterials at nanometer and atomic scales.
  • Perform traditional, high-vacuum TEM experiments. Although designed for environmental TEM applications, the Titan ETEM Themis capably performs HR-S/TEM imaging, diffraction, and spectroscopy.


Need more information?

Contact a Sales or Service Representative

Environmental Transmission Electron Microscope for dynamic in situ exploration of functional nanomaterials and devices at the nanometer and atomic scales

Built on FEI's world-class Titan TEM platform, the Titan ETEM atomic-resolution Scanning/Transmission Electron Microscope (STEM) is an all-in-one solution for time-resolved, in situ studies of the dynamic behavior of nanomaterials during exposure to gaseous environments. The FEI Titan ETEM features an innovative differentially-pumped specimen area compatible with standard TEM holders for easy sample handling and full double tilt capability. The software-controlled user interface offers a range of settings to accommodate handling by novices as well as by advanced operators. A mass spectrometer allows determination of gas composition, while a built-in plasma cleaner allows for cleaning after use of a gas. Built with the utmost consideration for safe operation, the Titan ETEM Themis complies fully with safety regulations and protocols for gas handling. The Titan ETEM Themis is a flexible, easy-to-use solution for the imaging of static specimens, the observation of nanomaterials' dynamic responses to the applied stimulus, and the study of growth, function, reliability, and breakdown of nanodevices.

Key features:

Building on advantages of our proven Titan ETEM solution, including:

  • Automation and ease-of-use through full software control of all operational parameters.
  • Window-free imaging through innovative differentially-pumped objective lens.
  • Precise control of vacuum system including fast switching between different vacuum modes.
  • Accurate monitoring of gas composition through built-in reactant gas analysis via mass-spectrometer (RGA).
  • Easy decontamination and system flushing via the integrated plasma cleaner.
  • Electron gun protection
  • Fine electron dose (rate) control using flexible gun lens and condenser settings.

Advance your research with the new Titan ETEM Themis.

The new FEI Titan ETEM  now also benefits from Titan Themis features:

  • Precise control and knowledge of sample temperature in any gas environment through new NanoEx-i/v heating stage.
  • Improved sample stability, navigation, and assisted sample drift correction in x, y, and z axes using a piezo enhanced stage.
  • Advancing high-quality imaging and movie acquisition functions , as well as sample navigation by combining speed, high sensitivity, and high-dynamic range with large field of view in one single Ceta 16M camera.
  • Handling and processing of large data sets by introducing a 64-bit operating system.

Titan ETEM G2 webcasts

Watch the Materials Today  webcast and learn more about "Imaging heterogeneous catalysts in the working state".

Watch the C&EN  webcast and learn more about "Direct, atomic-scale observation of catalysts under (near) operation condition using Environmental TEM".


ETEM Application Note

FEI’s Titan ETEM is the dedicated atomic-resolution Scanning/Transmission Electron Microscope (S/TEM) solution for time-resolved studies of the behavior of nanomaterials during exposure to reactive gas environments and elevated temperatures. Designed specifically for these in situ, dynamic experiments in catalysis, Titan ETEM features a unique, innovative differentially pumped objective lens for window- free imaging, and gas inlets for safe application of inert and reactive gas.

Download document