Jean-Charles Dupin

4 Questions 5 Answers 0 Followers

Questions related from Jean-Charles Dupin

What is the reason an XPS C1s signal enhancement is observed at the material surface after first minutes of Ar+ sputtering (onto mineral materials)?

Studies of Mineral compounds My last XPS experiments coupled with Ar+ sputtering tend to show an increase of the carbon content in the etched surface composition. Does it mean that the...

10 October 2015 1,001 8 View

How can we explain a XPS negative core level shift in the case of gold nanoparticles?

I've prepared gold Nps over gelatin and I've recorded two XPS Au4f doublets with for example BE 4f7/2 of 84.0eV (metal) and 83.2eV (?). Actually I do not expect interaction between gelatin and Au...

06 June 2014 1,576 4 View

What would we expect on the XPS spectra of nanomaterials?

I would like to know about the specifics encountered in XPS survey of nanomaterials (form of peaks, FWHM, etc.).

03 March 2014 7,950 2 View

XPS quantification

Hello everyone, For many years I have been running XPS experiments, I report on XPS quantitfication details in atomic percentage scale. Does anyone know how to convert it properly into mass...

06 June 2013 410 0 View