Auger- and X-Ray Photoelectron Spectroscopy in Materials Science


Book Description

To anyone who is interested in surface chemical analysis of materials on the nanometer scale, this book is prepared to give appropriate information. Based on typical application examples in materials science, a concise approach to all aspects of quantitative analysis of surfaces and thin films with AES and XPS is provided. Starting from basic principles which are step by step developed into practically useful equations, extensive guidance is given to graduate students as well as to experienced researchers. Key chapters are those on quantitative surface analysis and on quantitative depth profiling, including recent developments in topics such as surface excitation parameter and backscattering correction factor. Basic relations are derived for emission and excitation angle dependencies in the analysis of bulk material and of fractional nano-layer structures, and for both smooth and rough surfaces. It is shown how to optimize the analytical strategy, signal-to-noise ratio, certainty and detection limit. Worked examples for quantification of alloys and of layer structures in practical cases (e.g. contamination, evaporation, segregation and oxidation) are used to critically review different approaches to quantification with respect to average matrix correction factors and matrix relative sensitivity factors. State-of-the-art issues in quantitative, destructive and non-destructive depth profiling are discussed with emphasis on sputter depth profiling and on angle resolved XPS and AES. Taking into account preferential sputtering and electron backscattering corrections, an introduction to the mixing-roughness-information depth (MRI) model and its extensions is presented.




Auger Electron Spectroscopy Reference Manual


Book Description

Auger electron spectroscopy (AES) is based on the Auger total secondary electron energy distribution, and an ion gun to process, which involves the core-level ionization of an atom with provide depth profiling capability. subsequent deexcitation occurring by an outer-level electron de The high surface sensitivity of Auger spectroscopy which dictates caying to fill the core hole. The excess energy is transferred to the need for an ultrahigh-vacuum system is due to the limited and causes the ejection of another electron, which is by definition mean free path of electrons in the 0-3000 e V kinetic energy an Auger electron. The Auger electron transition, denoted by range. The Auger peaks decay exponentially with overlayer cov the electron levels involved, is independent of the excitation erage, which is consistent with an exponential dependence of source and leaves the atom with a constant kinetic energy. The escape probability on the depth of the parent atom. A compila kinetic energy is given by the differences in binding energies for tion of data from a variety of sources has been used to generate the three levels (for example, EK-E L, - EL ) minus a correction 2 an escape depth curve which falls in the range of 5-30 A in the term for the work function and electron wave function relaxation. energy range from 0 to 3000 eV. The observed escape depth does When the Auger transition occurs within a few angstroms of the not show a strong dependence on the matrix.




An Introduction to Surface Analysis by XPS and AES


Book Description

Provides a concise yet comprehensive introduction to XPS and AES techniques in surface analysis This accessible second edition of the bestselling book, An Introduction to Surface Analysis by XPS and AES, 2nd Edition explores the basic principles and applications of X-ray Photoelectron Spectroscopy (XPS) and Auger Electron Spectroscopy (AES) techniques. It starts with an examination of the basic concepts of electron spectroscopy and electron spectrometer design, followed by a qualitative and quantitative interpretation of the electron spectrum. Chapters examine recent innovations in instrument design and key applications in metallurgy, biomaterials, and electronics. Practical and concise, it includes compositional depth profiling; multi-technique analysis; and everything about samples—including their handling, preparation, stability, and more. Topics discussed in more depth include peak fitting, energy loss background analysis, multi-technique analysis, and multi-technique profiling. The book finishes with chapters on applications of electron spectroscopy in materials science and the comparison of XPS and AES with other analytical techniques. Extensively revised and updated with new material on NAPXPS, twin anode monochromators, gas cluster ion sources, valence band spectra, hydrogen detection, and quantification Explores key spectroscopic techniques in surface analysis Provides descriptions of latest instruments and techniques Includes a detailed glossary of key surface analysis terms Features an extensive bibliography of key references and additional reading Uses a non-theoretical style to appeal to industrial surface analysis sectors An Introduction to Surface Analysis by XPS and AES, 2nd Edition is an excellent introductory text for undergraduates, first-year postgraduates, and industrial users of XPS and AES.




Auger Electron Spectroscopy


Book Description




Auger Electron Spectroscopy


Book Description

This book discusses the use of AES and SAM for the characterization of a wide range of technological materials. These include metals and alloys, semiconductors, nanostructures, and insulators. Its value as a tool for high-resolution elemental imaging and compositional depth profiling is illustrated. The application of the technique for obtaining compositional information from the surfaces, interfaces, and thin film structures of technological and engineering materials is demonstrated. This volume also describes the basic physical principles of AES in simple, largely qualitative, terms understandable by any undergraduate science or engineering student. Major components of typical Auger spectrometers are also described because an understanding of the instrumentation is important to anyone wishing to become a skilled analyst. Mention is also made of other types of analysis for which an Auger electron spectrometer may be used, for example, secondary electron microscopy, backscattered electron imaging, X-ray spectroscopy. The relationship between AES and other analysis techniques is also discussed.




An Introduction to Surface Analysis by Electron Spectroscopy


Book Description

Surface analysis--the examination of the outer few nanometers of a material--is a routine undertaking in laboratories throughout the world, and is of great importance in such areas as corrosion, adhesion, polymer surface treatment, and microelectronics fabrication. This handbook provides an introduction to the two most popular surface analysis techniques: X-ray photoelectron spectroscopy and Auger electron spectroscopy. It explains the underlying physical principles, discusses instrumentation, and looks at the interpretation of resulting spectra. Applications of the two techniques are considered, and a critical comparison with other available methods is also included. This fully illustrated guide will be a valuable introduction for students and researchers in physics, engineering, and materials science.




Auger Electron Spectroscopy


Book Description

Treatise on Materials Science and Technology, Volume 30: Auger Electron Spectroscopy examines Auger electron spectroscopy and its various uses, emphasizing both theoretical and experimental studies. This book discusses the historical development of auger electron spectroscopy, studies of surface segregation kinetics by auger electron spectroscopy, and local electronic structure information in auger electron spectroscopy. The metallurgical applications of auger electron spectroscopy and auger photoelectron coincidence spectroscopy are also elaborated. Other topics include the measurement of surface segregation kinetics by Auger electron spectroscopy, tempered martensite embrittlement, embrittlement of nonferrous alloys, and analysis of particle-matrix interfaces. The high-resolution scanning Auger electron spectroscopy, corrosion and stress corrosion cracking, and APECS instrumentation are likewise covered in this publication. This volume is suitable for researchers and electrical engineering students conducting work on Auger electron spectroscopy.




Practical Surface Analysis, Auger and X-ray Photoelectron Spectroscopy


Book Description

The aim of this text is to present the background, the important concepts, and tabulated data of Auger electron spectroscopy (AES) and x-ray photoelectron spectroscopy (XPS) in a practical context for those involved in applied surface analysis techniques.