LABORATORY FOR DIAGNOSTIC TECHNIQUES
Learning outcomes of the course unit
The lessons deal with the basics and applications of electron and X-ray diffraction based techniques for the structural and optical investigation of materials and structures with high spatial and analytical resolution.
In this respect, at the end of the theoretical lessons and before starting the experiments in the labs, some examples of the complementary use of the different techniques as well as of their limits and performance are presented.
It would be useful the students would know in advance the basics of Solid State Physics and Semiconductor.
Course contents summary
There are no published books and le lessons are prepared and presented by the teacher in a Power Point format. The students can have an electronic copy of the lessons as well as a printed one.
Introduction to tipical problems in materials science
Which techniques, types of probes, peculiarities and limits
Basics of Condensed Matter
The Scanning Microscopy: principles and applications
The Scanning Electron Microscope
The Scanning Tunnel Microscope
The Atomic Force Microscope
The Transmission Electron Microscopy: principles and applications
The transmission Electron Microscope
Basics of Electron Diffraction
Specimen preparation and artefacts
The X-Ray Diffraction: Principles and Applications
High resolution X-Ray Diffraction
Experimental training on selected topics (30 hs)
The following text books are recommended to be used to integrate the teacher lessons.
Transmission Electron Microscopy
D.B. Williams and C.B. carter
Kluwer Academic-Plenum Publisher
Scanning Electron Microcopy: Physics of Image Formation and Microanalysis
Springer-Verlag, Series in Optical Sciences
Introduction to Dislocations
D. Hull and D.J. Bacon
Cathodoluminescence Microscopy of Inorganic Solids
B.G. Yacobi and D.B. Holt
Plenum Publishing Corporation
The class is structured in theoretical lessons followed by a training in the labs. Not more than 2-3 students per time are allowed to follow the experiments in order to allow them to personally use the intruments which are normally employed for research activity. The main goal of the lab training is to give the students an experimental research methodology to face practical problems. This is normally achieved by the constant support of the teacher since the techniques used often force the operator to decide in situ the most appropriate experimental approach which is different from time to time depending on the materials investigated.
The level of knowledge of both the theoretical basic principles of the techniques and of the most suitable experimental approaches to paractical problems is assessed by a colloquium.