The next page has helped me out during the results discussion of papers.

NIST X-ray Photoelectron Spectroscopy Database

https://srdata.nist.gov/xps/

Here's also a set of three good resources:

https://www.researchgate.net/post/Please_help_how_can_i_calculate_the_quantitation_peak_mole_percentage_of_XPS_Data

Thank you so much Omar Resendiz.

Thank you so much Jurgen Weippert.

Dear Omar and Jurgen Professor,

The link couldn't possibly open. Our university blocked the recent papers. Kindly send me the PDF file.

Mail id: [email protected]