: Double-click the XPS icon (typically a red peak with two blue deconvoluted peaks) to start the program. Mastering Your First Fit
Tailored for XPS, supporting various peak shapes (Gaussian/Lorentzian mix).
A crucial first step is removing the background signal.
XPSPeak 4.1 is a free, lightweight software program designed for the analysis and deconvolution of X-ray Photoelectron Spectroscopy (XPS) data xps peak fit 41 new download
Enter literature values for spin-orbit splitting, fix FWHM values within reasonable ranges (typically between 0.8 eV and 1.8 eV depending on system resolution), and lock necessary area ratios.
Publish-ready graphs are now rendered in directly, eliminating the need for third-party tracing tools. Overlays, residuals, and component peaks are color-coded by default.
These tools offer version 4.1-equivalent or better fitting (e.g., Voigt profiles, Monte Carlo error estimates). : Double-click the XPS icon (typically a red
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This is where the actual science happens. You must constrain the peaks to chemical reality.
Accurate background subtraction is critical for precise quantification. The software supports standard methods, including: XPSPeak 4
: Ability to fix, link, or constrain parameters such as peak position, area, and Full Width at Half Maximum (FWHM).
to peak parameters like position, width (FWHM), and area to ensure physically meaningful fits. Step-by-Step: How to Download & Install