XPSPEAK 4.1 is a popular freeware program used for the analysis and peak-fitting of X-ray Photoelectron Spectroscopy (XPS) data
Your goal is to minimize the Chi-square value, but don’t over-fit. If you need 10 peaks to fit one envelope, your model might be physically unrealistic. xpspeak download
: It may lack support for newer data formats or advanced automated analysis techniques like Convolutional Neural Networks . XPSPEAK 4