Method: Material composition and phase analysis with SEM-CL
Alternative labels
SEM-CL
CL
Description
SEM-Cathodoluminescence (SEM-CL) is the emission of photons of characteristic wavelengths from a material that is under high-energy electron bombardment produced in a scanning electron microscope. The nature of CL in a material is a complex function of composition, lattice structure and superimposed strain or damage on the structure of the material. The spectral analysis also allows to determine the compositional and structural characteristics of the material under investigation (element incorporation, lattice defects). The method allows the creation of panchromatic and RGB images, the creation of cathodoluminescent images depending on the selected wavelength, and spectrum recording based on point measurement, line measurement, and area measurement. Detector type: Horiba Flex-CLUE CL Materials that can be investigated: CL sensitive minerals (e.g. quartz, feldspar, apatite, zircon), polymers, etc. Application Examples: - This method makes it possible to visualize mineral zonations (zircone, quartz, carbonates etc.) - Material differences (different origin of calcite crystals) that are not possible with other methods (EDS, WDS, BSE).
Techniques
Scanning electron microscopy with thermionic emission gun (sem)
Other techniques
Cathodoluminescence (in SEM)
Type
Cathodoluminescence (SEM-CL)
Version
1.0
Parameters
Type: spectral resolution
Unit: nm
Value: 200-1000