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High resolution electron microscopy

High resolution electron microscopy the theory and technique of projecting and imaging atoms in solid materials by transmission electron microscopy. Its resolution is close to or up to the atomic scale (about 0.1nm). It has unique advantages for the variation and defects of nanoscale display materials.

Sample requirements

Japanese electron high resolution transmission electron microscope Fei field gun transmission electron microscope

External service items of instruments and equipment:

1. Bright and dark field image;

2. Selected area electron diffraction saed;

3. HRTEM of high resolution imaging;

4. EDS analysis.

Selected area electron diffraction

Select all levels of diffractive beam spectrum of specific image area. The selection is made by the selection aperture placed on the object image plane.

Bright dark field image

If the objective diaphragm covers the central transmission spot of the rear focal plane, the resulting electronic image is called the bright field image (BF), and if the objective diaphragm covers a diffraction spot of the rear focal plane, the resulting electronic image is called the dark field image (DF).

EDS energy spectrum analysis

The species and content of the elements in the micro region of the material were analyzed. The characteristic energy of X-ray photons of different elements is different