Cathodoluminescence Image Processing Script

Description

The CL_Image_Processing_v21.m script processes .dm4 type cathodoluminescence data generated by Gatan Digital Micrograph software, outputted as a data cube (2 spatial axes as a constructed image, 1 spectral axes preset as wavelength or energy). It utilised a fitting algorithm for up to two gaussian response peaks, which is then mapped of all individual properties for comparisons (intensities, energies, peak widths and more). Absorptance plots are also built within each pixel and used to generate Urbach Energy maps, constrained spectrally by the peak behaviour of the CL response. In its current form, it is primarily optimised to analyse CdSeTe and CdSe semiconductor films, however the script can run wider spectral analysis to be transferrable for other materials, and can be further optimised within the script if necessary. Note: Ensure that the two additional script files (ReadDMFile.m and fire.m) are placed in the same folder as the processing script for the file to work. Additionally a wavelength/energy range must be in the data file name (the format will be displayed in an error message

Institutions

• Loughborough University

  England, Loughborough

Categories

Licence