XPSpeak41 was originally compiled for 16-bit/32-bit Windows systems (Windows 95/98/XP).
Open a sample file (e.g., Cu2p_bg from the folder) and attempt to fit the first peak to ensure everything is working correctly.
: Calculating the relative atomic percentages of elements based on the area under the fitted peaks and relative sensitivity factors (RSF). Recommended Resources
Click . The software will use a least-squares algorithm to minimize the difference between your raw data and the sum of your peak components. Conclusion
Download the zipped folder and extract all files into a dedicated directory (e.g., C:\XPSPEAK ).
Recognizing that his creation could do more, he expanded it into a full-featured peak-fitting suite. He integrated features he had "dreamed of" during his long lab hours, such as:
You can typically find the zip file containing the installer by searching for "xpspeak41.zip" on academic archives or by accessing mirrored files.
The most authoritative source for XPSPEAK41 is the Washington State University chemistry department's website. This source is referenced in university homework assignments and laboratory manuals, indicating it is a trusted institutional repository.
Fix or link parameters such as peak position, Full Width at Half Maximum (FWHM), and area ratios (ideal for doublet splitting like 2p3/22 p sub 3 / 2 end-sub 2p1/22 p sub 1 / 2 end-sub
With the installation steps and the detailed tutorial provided in this guide, you are now equipped to import your XPS data, subtract the background, add and fit peaks, and export your results for publication. While professional alternatives exist, XPSPEAK41 remains an excellent choice for beginners and seasoned researchers alike, thanks to its simplicity, minimal system requirements, and proven track record in academic research.
The ability to (like 2p3/2 and 2p1/2) for more accurate chemical state quantification. Simultaneous fitting of different XPS regions.
Adjust constraints manually if the software converges on an unphysical or unrealistic fit. Step 5: Exporting the Results
: An up-to-date, free, and open-source alternative available on SourceForge
