Transmission Electron Microscopy

TEM Examples

Transmission electron microscopy (TEM) enables characterization of powders and thin films (which can be prepared in a target preparation from bulk materials) by direct imaging with up to atomic resolution. The image information can be locally correlated with spectroscopic techniques (EELS/EFTEM and EDX) to provide semi-quantitative elemental composition/maps with atomic resolution. All of these techniques can also be performed in-situ, e.g. during heating, electrical biasing or straining to directly correlate structural changes and materials properties. For complex three-dimensional structures, electron tomography can be used to generate a 3D representation of the material with a spatial resolution of ~1 nm.

 

1. ThermoFisher Themis-Z Transmission Electron Microscopy 

FEI Titan 80-300 at KIT CN 
  • Themis-Z
           -        High Tension: 60, 80, 300 kV
     
          -       
    X-FEG
           -        Monochromator
           -        Double a
    berration corrected (TEM and STEM)
           -        Super-X EDX detector
           -        BF/seg. DF/HAADF-STEM detector
           -        STEM DPC and iDPC
           -       
    Gatan Oneview IS camera
           -        Gatan GIF Continuum 970 + K3 IS camera
  • Resolution 300 kV
           -       
    0.06 nm information limit TEM
           -       
    0.063 nm resolution in STEM
           -       
    0.15 eV energy resolution EELS
  • Resolution 80 kV
           -       
    0.09 nm information limit TEM
           -       
    0.08 nm resolution in STEM
           -       
    0.15 eV energy resolution EELS
  • Resolution 60 kV
           -       
    0.1 nm information limit TEM
           -       
    0.1 nm resolution in STEM
           -       
    0.15 eV energy resolution EELS
  • Imaging and Analysis Techniques:
           -       
    BF-TEM & HRTEM
           -       
    BF-/DF-/HAADF-STEM
           -        4D-STEM: DPC/iDPC/PDF
           -       
    EFTEM, EELS, EDX Analysis
           -       
    (S)TEM-EDX tomography
           -       
    Electron diffraction
           -       
    Lorentz imaging
           -       
    Low-dose techniques & cryo imaging
           -        AXON & Clarity in-situ integration

 

2. ThermoFisher Themis-Z Transmission Electron Microscopy 

FEI Titan 80-300 at KIT CN 
  • Themis 300
           -        High Tension: 80, 200, 300 kV
     
          -       
    X-FEG
           -        Abe
    rration corrected (STEM)
           -        Super-X EDX detector
           -        BF/seg. DF/HAADF-STEM detector
           -        STEM DPC and iDPC
           -       
    Ceta camera
           -        NanoMegas ASTAR System
           -        Pixelated detector to be specified
  • Resolution 300 kV
           -       
    0.2 nm point resolution TEM
           -       
    0.08 nm resolution in STEM
  • Imaging and Analysis Techniques:
           -       
    BF-TEM & HRTEM
           -       
    BF-/DF-/HAADF-STEM
           -        4D-STEM: DPC/iDPC/PDF/ACOM
           -       
    EDX Analysis
           -       
    (S)TEM-EDX tomography
           -       
    Electron diffraction
           -       
    Low-dose techniques & cryo imaging
           -        Clarity in-situ integration

 

3. ThermoFisher Tecnai F20-ST Transmission Electron Microscopy

 Tecnai F20ST
  • Tecnai F20-ST
           -       
    FEG

           -       
    HAADF-STEM detector

           -       
    Gatan GIF2001

           -       
    EDAX S-UTW EDX detector
  • Resolution:
           -       
    0.15 nm information limit TEM
           -       
    0.19 nm resolution in STEM
           -       
    0.7 eV energy resolution EELS
  • Imaging and Analysis Techniques:
           -       
    BF-TEM, HRTEM
           -       
    HAADF-STEM, HRSTEM
           -       
    EFTEM, EELS, EDX
           -       
    (S)TEM tomography
           -       
    Electron diffraction, electron precession
           -       
    Orientation mapping

 

4. Holders available for the ThermoFisher TEMs

TEM holders 
  • Analytical single-tilt holder
  • Analytical double-tilt holder
  • Tomography holder - Fischione 2020
  • Analytical tomorgaphy holder - Fischione 2021
  • On-axis rotation tomography holder - Fischione 2050
  • Heating/biasing holder - Protochips Aduro: RT-1200ºC
  • Double-tilt heating/biasing holder - Protochips Fusion: RT-1200ºC
  • Double-tilt heating holder- Gatan 652: RT-800ºC
  • Cooling holder - Gatan 915: LN2-80ºC
  • Straining holder - Hysitron Picoindenter PI 95
  • Heating straining holder - Gatan 654
  • Electro chemistry - Protochips Poseidon 510
  • Gas holder - Protochips Atmosphere with RGA analysis
  • Protochips AXON and Clarity software integration