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Transmission Electron Microscopes

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 sub-nanometer 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 1–2 nm.

 

1. FEI Titan 80-300 Transmission Electron Microscopy 

FEI Titan 80-300 at KIT CN 

·       FEI Titan 80–300

       -        FEG

      -        Aberration corrector

       -        Gatan Ultrascan CCD

       -        HAADF-STEM detector

       -        Gatan GIF 863

       -        EDAX S-UTW EDX detector

·       Resolution:

-        0.08 nm information limit TEM

-        0.14 nm resolution in STEM

-        0.7 eV energy resolution EELS

·       Imaging and Analysis Techniques:

-        BF-TEM, aber. cor. HRTEM

-        HAADF-STEM, HRSTEM

-        EFTEM, EELS, EDX,

-        (S)TEM tomography

-        Electron diffraction

-        Lorentz imaging

-        Low-dose techniques & cryo imaging

 

2. FEI Tecnai F20-ST Transmission Electron Microscopy

 Tecnai F20ST

·       FEI Tecnai F20-ST

       -        FEG

       -        HAADF-STEM detector

       -        Gatan GIF2001

       -        EDAX S-UTW EDX detector

       -        NanoMegas ASTAR System

·       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

 

3. Holders available for the Titan 80-300 and the Tecnai F20-ST

TEM holders  -        Analytical single-tilt holder
-        Analytical double-tilt holder
-        Tomography holder - Fischione 2020 Advanced tomography holder
-        Heating holder - Protochips Aduro: 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
-        Electrical Biasing - Protochips Aduro
-        Electro chemistry - Protochips Poseidon 500