Transcription of CHAPTER 10 AUGER ELECTRON SPECTROSCOPY
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CHAPTER 10 AUGER ELECTRON SPECTROSCOPY
CHAPTER 10 AUGER ELECTRON SPECTROSCOPY Richard P. Gunawardane and Christopher R. Arumainayagam Department of Chemistry, Wellesley College, Wellesley, MA 02481, INTRODUCTION AUGER ELECTRON SPECTROSCOPY (AES) is a nondestructive core-level ELECTRON SPECTROSCOPY for semi-quantitative determination of the elemental composition of surfaces, thin films, and interfaces. The popularity of this ultrahigh vacuum technique may be attributed to high surface sensitivity (an analysis depth of less than 100 ) and a relatively low detection limit (~ atomic percent). In addition to having an elemental coverage from lithium to uranium and beyond, AES has the ability to distinguish between two elements that are close to each other in the periodic table.
the Auger notation for the energy level of the ground state electron configuration (1s22s 2p63s) of the Na atom. The level symbol for the ground state electron configuration is 2S ½ corresponding to the XPS notation of 3s ½. When the energy levels are very close to each other they are not usually resolvable experimentally.
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