A REVIEW ON AUGER ELECTRON SPECTROSCOPY
Journal Title: Int J of Pharm Res & Analy - Year 2014, Vol 4, Issue 2
Abstract
The Auger electron energies can be defined as the characteristics of the element from which the electron come. Auger electron Spectroscopy (AES) measures the energies of Auger electrons by identifying surface elemental compositions. This analytical technique has a high spatial resolution and sensitivity. It is a phenomenon which is physical in which electron transition of an electron in an atom filling in an inner-shell vacancy creates the emission of another electron. Electron from higher energy level will fall into vacancy when a core electron is removed leaving a vacancy results in a release of energy. Elemental concentrations are directly proportional to Auger electron peaks. Concentrations are possible measure from the first principles. Auger peaks are influenced by several instrumental factors like sample orientation, energy resolution, primary beam energy and acceptance angle of the analyzer. Methods such as X-rays or bombardment with argon ions and irradiation with electrons can yield an inner shell vacancy. AES is a wide spread method for analysis of thin films, interfaces and surface. It is one of the most commonly employed techniques in surface analysis in determining the composition of sample’s surface few layers.
Authors and Affiliations
Shanthi Priya P , Hema Sree. M , Raja Shekar S , Uma Maheshwaara Rao V , Ajitha. A
Keywords
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