MSE-735: Scanning and Analytical Transmission Electron Microscopy

Summary

This intensive course discusses advanced TEM techniques such as: scanning TEM; analytical TEM using EELS and EDX; aberration corrected imaging; and image simulation. It is intended for researchers who have taken the introductory TEM course MSE-637 or who have a good background in conventional TEM.

Official source

https://edu.epfl.ch/coursebook/en/scanning-and-analytical-transmission-electron-microscopy-MSE-735

Moodle Page

http://go.epfl.ch/MSE-735

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Instructors (3)

Related concepts (15)

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Related MOOCs (4)

Electron microscope

An electron microscope is a microscope that uses a beam of electrons as a source of illumination. They use electron optics that are analogous to the glass lenses of an optical light microscope. As the wavelength of an electron can be up to 100,000 times shorter than that of visible light, electron microscopes have a higher resolution of about 0.1 nm, which compares to about 200 nm for light microscopes.

Scanning transmission electron microscopy

A scanning transmission electron microscope (STEM) is a type of transmission electron microscope (TEM). Pronunciation is [stɛm] or [ɛsti:i:ɛm]. As with a conventional transmission electron microscope (CTEM), images are formed by electrons passing through a sufficiently thin specimen. However, unlike CTEM, in STEM the electron beam is focused to a fine spot (with the typical spot size 0.05 – 0.2 nm) which is then scanned over the sample in a raster illumination system constructed so that the sample is illuminated at each point with the beam parallel to the optical axis.

Low-voltage electron microscope

Low-voltage electron microscope (LVEM) is an electron microscope which operates at accelerating voltages of a few kiloelectronvolts or less. Traditional electron microscopes use accelerating voltages in the range of 10-1000 keV. Low voltage imaging in transmitted electrons is possible in many new scanning electron detector. Low cost alternative is dedicated table top low voltage transmission electron microscope.

Optical microscope

The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century. Basic optical microscopes can be very simple, although many complex designs aim to improve resolution and sample contrast. The object is placed on a stage and may be directly viewed through one or two eyepieces on the microscope.

Microscope

A microscope () is a laboratory instrument used to examine objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using a microscope. Microscopic means being invisible to the eye unless aided by a microscope. There are many types of microscopes, and they may be grouped in different ways.

Marco Cantoni

1982-1988, Diploma course in Experimental Physics (certificate, 28.10.88)ETHZ Faculty IX MATHEMATICS and PHYSICS, Diploma Thesis: "Abweichungen von der ikosaedrischen Symmetrie in Al-Cu-Li Quasikristallen", Advisor: Prof. H.-U. Nissen 1989-1993, Ph.D. in Experimental Physics (certificate, 23.8.94) ETHZ Physics Department, Laboratory of Solid State Physics, Ph. D. Thesis No. 10421, Title: "Elektronenmikroskopische Untersuchung der Realkristallstruktur epitaktischer Schichten von Supraleitern des Typs SEBa2Cu3O7-x auf (100)-SrTiO3" Advisors: Prof. H.R. Ott, Prof. H. U. Nissen. 1994-1996,ETH Zürich,Material Science Department, Non-Metallic Materials, Prof. L. Gauckler: Microstructure characterisation of high-tech ceramic materials by means of SEM, TEM and atomic force microscopy: superconductor thick films (Bi-2212 on Ag) and solid oxide fuel cells (ZrO2, CeO2). 1996-1998, National Institute for Research in Inorganic Materials NIRIM, Japan Group for Special Research, Prof. S. Horiuchi: TEM of Bi-2223/Ag Tapes, Application of Imaging Plates (IP) in High Voltage TEM, Cryo-Lorentz-TEM of Superconducting Materials (Observation of Flux-Lines) 1998-2000, Ecole polytechnique fédéral de Lausanne, EPFL-CIME Centre interdépartemental de microscopie électronique CIME, Prof. P.A. Buffat: Projet 125, PPO II (programme prioritaire optique): Characterization of materials and devices for optic and optoelectronic applications by electron microscopy. 2001-2003, Ecole polytechnique fédéral de Lausanne, EPFL STI IMX LCCeramics Laboratory, Prof. Nava Setter Characterisation of ferroelectric materials, transmission electron microscopy of relaxor ferroelectric materials 2004, University of Geneva, Physics Department, Condensed matter Physics Group of Prof. R. Flükiger, TEM of Multifilament Nb3Sn superconducting wires, in collaboration with EPFL-CIME Since 1.11.04, EPFL-SB-CIME

Emadeddin Oveisi

Dr Emad Oveisi is a senior scientist at the Interdisciplinary Centre for Electron Microscopy (CIME), EPFL. Emad received a BSc in Metallurgy and Materials Engineering (2005) and an MSc in Materials Science (2008) both from the University of Tehran (Iran). He graduated with a PhD in Materials Science and Engineering at EPFL in 2014 for a thesis on the "Three-Dimensional STEM Imaging of Dislocations" under the direction of Prof. Cécile Hébert. The PhD thesis at the Electron Spectrometry and Microscopy Laboratory (LSME), served as an introduction to many of the advanced microscopy techniques that have proven to be a platform for his research career. A post-doctoral research at the centre for electron microscopy gave him the opportunity to peruse a cutting-edge research on one of the most modern aberration-corrected transmission electron microscopes.Since the inauguration of the Energypolis campus of EPFL in Sion, he has been the manager and reference scientist of the electron microscopy platform of EPFL-Valais, working with 9 research groups and more than 200 researchers. In addition to this core responsibility, he provides advanced microscopy consulting and service to EPFL scientists and assist their research to the highest level possible. Emad Oveisi’s research focuses on the application and development of novel electron microscopy techniques, with emphasis on 3D imaging of crystal defects, as well as the precision measurement of materials properties using aberration-corrected S/TEM. In 2018, he received the prestigious Microscopy Innovation Award for inventing “Single-shot three-dimensional electron imaging”, a novel technique that enables 3D imaging of in situ dynamics. In 2016 Emad was elected as an interim representative for the scientific staff ("corps intermédiaire") to the Council of the Institute of Chemistry (ISIC). Since 2019, he is a member of EPFL Teachers’ Council (CCE) and has been elected as one of its four bureau members. This role allows him to be exposed to new ideas and pedagogical challenges, as well being involved in discussions with the Vice Presidency of Education (VPE) and other teaching organisations for defining teaching strategies at the EPFL.

Duncan Alexander

Duncan Alexander graduated with a PhD in Materials Science and Metallurgy at the University of Cambridge in 2003 for a thesis on the kinetics of metallurgical phase transformations under the direction of Lindsay Greer. From 2003 to 2007 he held a Royal Society Overseas Research Fellowship at the University of Sydney, and then post-doctoral positions at the University of Cambridge and Arizona State University, working first on materials electrochemistry with Carsten Schwandt and Derek Fray, and then the characterization of atmospheric aerosol particles with Peter Crozier and Jim Anderson. In 2007 he came to EPFL as a scientific collaborator in the group of László Forró, and from 2008 to 2017 he was a staff scientist at EPFL’s Interdisciplinary Centre for Electron Microscopy (CIME), specializing in the application of advanced transmission electron microscopy techniques and enabling electron microscopy research activities for groups across EPFL through teaching, training and support. In 2018 he joined the Electron Spectrometry and Microscopy Laboratory (LSME) as a full-time research scientist dedicated to advancing transmission electron microscopy techniques, and was promoted to the status of Research and Teaching Associate. In 2019, together with LSME director Cécile Hébert, he launched the first MOOC on transmission electron microscopy for materials science: https://www.coursera.org/learn/microscopy/For a complete list of peer-reviewed publications, see:https://orcid.org/0000-0003-4350-8587