Sameera Perera

6 Questions 8 Answers 0 Followers

Questions related from Sameera Perera

How to quantify elements using narrow scans in CasaXPS?

I'm trying to quantify elements using XPS narrow scans. I need to get the standard deviation of At% too. I understand that the CasaXPS gives us the standard deviation of At% when quantified using...

30 November 2022 9,648 3 View

Why Mg2p was not separated as Mg 2p 3/2 and Mg 2p 1/2 in XPS?

I'm trying to fit the Mg2p peak. In the literature, just like for Al2p, I observed that the Mg2p peak is fitted with a single peak (not with 3/2 and 1/2 components). Is this because AlK-alpha...

25 April 2021 2,228 3 View

What sensitivity factors should I use for Casa XPS?

Dear colleagues, I m using a ThermoFisher XPS system and Avantage software that came with the instrument for data analysis. If I want to use different software for data analysis, such as Casa...

14 January 2021 8,360 6 View

Can anyone help me to understand what are pitting and cratering effects in XPS depth profiling ?

Hi all, I'm trying to understand how pitting and cratering effects can influence the XPS depth-profiling. If someone can suggest a good paper that discusses this topic, that would be...

23 November 2020 5,584 2 View

Why does the negative binding energy mean in XPS/UPS spectrum ?

Hello all, When using XPS/UPS spectra to get information about the band structure of a material, the spectra are collected from some negative binding energy value to a positive value (eg. -5 to...

09 June 2020 1,759 4 View

How to perform XPS experiments with rotational sample holder ?

Hi all, I'm trying to analyze a thin film using a rotational sample holder. I hope azimuthal rotation would help to reduce the effect of induced surface roughness. How fast should I rotate the...

15 January 2020 549 5 View