Before opening the software, you must convert your XPS data into a format XPS Peak Fit can read.
Understanding the core capabilities of this tool helps optimize your data processing workflow. Advanced Background Subtraction
Use a Gaussian-Lorentzian sum (often 70% Gaussian/30% Lorentzian) to match the broadening effects in XPS.
这通常有两个原因：一是背底扣除不准确，可以尝试将Backgrond类型切换为“Shirley+Linear”或“Tougaard”再试试；二是初始峰的设置不合理，多加一个峰或少加一个峰，或通过“Constraints”为参数设置合理的边界范围。 xps peak fit 41 new download
The original author’s website is no longer active, but several trusted software repositories host legitimate copies of XPS Peak Fit 4.1:
Evaluate the residual line (the difference between the experimental data and the total fitted curve) to ensure no systematic processing errors remain. Troubleshooting Common Errors
Easily apply linear, Shirley, or Tougaard backgrounds with real-time visual feedback. Before opening the software, you must convert your
From its robust Shirley background subtraction and flexible peak constraint system to its support for asymmetric peak functions and multiple data formats, XPS Peak Fit 4.1 is a reliable workhorse for any materials lab. While paid software like CasaXPS offers more automation and larger databases, the freeware's simplicity, ease of use, and zero cost make it an unbeatable choice for students, researchers in smaller labs, or anyone needing to perform quick, accurate, and publication-ready XPS analysis.
Ready to start fitting? Download your copy and refer to this XPSPEAK User Guide for a deep dive into the math behind the peaks.
: Fine-tune your fit using sliders for peak positions, widths (FWHM), and area constraints. While paid software like CasaXPS offers more automation
Beyond standard XPS, Avantage integrates data from complementary techniques like Auger Electron Spectroscopy (AES), Ultraviolet Photoelectron Spectroscopy (UPS), and Reflected Electron Energy Loss Spectroscopy (REELS).
XPS Peak Fit 41 is a powerful software package for XPS data analysis. The latest version of the software includes several new features and improvements, making it an essential tool for researchers and scientists working in surface science, materials science, and chemistry. With its user-friendly interface, advanced peak fitting algorithms, and comprehensive database of XPS peak positions and intensities, XPS Peak Fit 41 is an ideal choice for anyone looking to analyze and interpret XPS data. The software is now available for download from the official website, and users can take advantage of the new features and improvements by downloading the latest version.