The GRAND ARM300cFEG transmission electron microscope, equipped with an aberration correction on the objective lens, complements the JEM ARM200cF microscope also available at CNME-ELECMI facilities. While the latter is specially designed to obtain atomic resolution at the compositional level, the GRAND ARM300cFEG is designed to obtain structural atomic resolution of 0.5 Å. This allows solving complex crystallographic problems at the atomic level as well as those network distortions or presence of point defects that modify the properties of the materials, besides it permits the visualization of small atoms such as H and Li.

The configuration of this microscope allows working at even lower voltages: 60 KV. This is crucial for the research of new electronic materials: polymeric and organic based hybrids that are currently experiencing high interest in the development of optical antennas, LEDS, solar cells and transistors.

What can be done with it?

Study and structural characterization of materials (catalytic, semiconductors, alloys, mesoporous materials, polymers, biological samples, etc.).
Obtaining of ultra-high resolution images.
Morphological and size information (TEM).
Chemical mapping (STEM).
Semi-quantitative compositional analysis (XEDS).
Quantitative compositional analysis (EELS ENFINIUM).

Technical specifications

  • STEM mode (with STEM Corrector)
    • Resolution@300kV (HAADF)
      • UHR configuration: 63 pm
      • UHR configuration: 82 pm
  • TEM mode (with TEM Corrector)
    • Lattice Resolution
      • UHR configuration: 50 pm
      • HR configuration: 60 pm
    • (Non linear) information limit (Young’s fringe TEST with thick specimen)
      • UHR configuration: 60 pm
      • UHR configuration: 80 pm
    • (3D FFT TEST or thin specimen)
      • UHR configuration: 90 pm
      • UHR configuration: 120 pm