FYS-2306 Electron Spectroscopy, 5 cr
Suitable for postgraduate studies.
||Accepted learning assignments.|
After completing the course, the student will be able to define the physical operation principles of electron spectroscopy methods such as XPS, AES, ARUPS and NEXAFS. The student will learn how to apply the electron spectroscopy methods to identify elemental distribution of solid surfaces, nanostructures and molecular structure of surface compounds. During the course, the student will learn to solve surface analytic research problems in tutorial learning sessions (groups of 4-6 students) based on the shared expertise of the group members. The student will master the skills required to report the results of the learning assignments using online learning management system as well as in the form of a research report.
|1.||Surface analysis and surface sensitivity: Principles of surface analytical research. Instrumentation. Surface sensitivity. Attenuation length and information depth. Application examples of surface analysis.||Vacuum technology. Energy analysers. Role of emission angle to information depth.||Concentric Hemispherical Analyser. Spectromicroscopy.|
|2.||X-ray photoelectron spectroscopy (XPS): Spectral features and chemical shifts. XPS as an analytical method. Quantitative analysis.||Photon sources. X-ray lines and X-ray satellites. Three-step model of photoemission. Adiabatic approximation. Koopman's theorem.||Intrinsic and extrinsic processes of photoemission. Many-electron effects in photoemission. Nanostructures on surfaces.|
|3.||Auger electron spectroscopy (AES): Auger-transition. AES as an analytical method. Comparison of XPS and AES methods. Depth profiling. Quantitative analysis.||X-ray fluorescence yield versus Auger electron yield. Energy of the Auger transition.||Carbon KVV-transition. Ionisation cross-section.|
|4.||Ultra-violet photoemission spectroscopy (UPS): Photon sources and surface sensitivity of UPS. Orientation and symmetry of adsorbed molecules.||Fermi's Golden Rule. Dipole matrix element. Character table. Polarization. Surface molecule point groups. Polarization-dependent selection rules.||ARUPS CO/Ni(100).|
|5.||X-ray absorption spectroscopy (XAS): Synchrotron radiation and surface science. NEXAFS and EXAFS methods.||Analysis of EXAFS spectrum.||XAS of Cu oxides.|
Ohjeita opiskelijalle osaamisen tasojen saavuttamiseksi
The final grade of the course is defined by week performance, Midterm and Endterm electronic exams and a research report that is based on a project assignment, which is to be completed as a result of a team work. The assessment of the course is either numeric on the grade scale of 0 - 5 or Pass/Fail and will be decided together with the teacher and the students at the beginning of the course. The numeric assessment is based on weighting the week performance by 40%, Midterm and Endterm exam results by 40% and the research report by 20%. Instructions how to achieve the learning outcomes of the week performance and the project assignment can be found from the Moodle. This course is based on a blended learning method with 'flipped classroom' type of activities, so please bring your laptop/tablet/smart phone to the learning sessions.
Numerical evaluation scale (0-5)
|Other online content||Valden Mika||Yes|
|Online book||X-Ray Photoelectron Spectroscopy : An Introduction to Principles and Practices||Paul van der Heide||9781118162927||Yes|
|FYS-2306 Electron Spectroscopy, 5 cr||FYS-2306 Electron Spectroscopy, 5 cr|
|FYS-2306 Electron Spectroscopy, 5 cr||FYS-2300 Electron Spectroscopy, 5 cr|