Electron spectroscopy of corrugated solid surfaces.

Area of Science:

• Surface science
• Materials characterization
• Spectroscopy

Background:

• Surface topography significantly influences electron spectral intensities in surface-sensitive techniques like XPS, AES, REELS, and EPES.
• Accurate quantitative analysis in electron spectroscopy is often limited by non-ideal, rough surfaces.

Purpose of the Study:

• To review methods for addressing the impact of non-ideal surface topography on electron spectroscopy.
• To evaluate different approaches for correcting or accounting for surface roughness in spectral intensity calculations.

Main Methods:

• Review of existing literature on surface topography correction in electron spectroscopy.
• Discussion of single-parameter correction methods.
• Analysis of computer simulations using models of surface roughness.
• Detailed examination of a semi-empirical method incorporating atomic force microscopy (AFM) for surface mapping.

Main Results:

• Single-parameter correction methods are too simplistic for complex topographies.
• Computer simulations aid in understanding phenomena related to surface roughness.
• The AFM-based semi-empirical method is suitable for arbitrary rough surfaces and can be integrated into quantitative procedures.

Conclusions:

• Addressing non-ideal surface topography is crucial for accurate electron spectroscopy.
• The AFM-based semi-empirical method provides a robust approach for quantitative analysis of rough surfaces.
• This method extends the applicability of quantitative procedures to real-world, non-ideal surfaces.