Physical Chemistry 4 (M. Sc.), part TEM, SEM, sample preparation, lecture and exercises
Optical Microscopy, Scanning Probe Microscopy, Electron Microscopy, Spatial resolution of microscopic methods, Intermolecular interactions, Molecular self-organization, Nanochemistry and nanoparticles, Nanoplasmonics and quantization effects,Single molecule effects
In this lecture basic topics (crystallography, diffraction theory) will be elaborated. The most important electron diffraction methods, including the use of direct-space methods (for example HRTEM), for the structural characterization of nanoscale materials are discussed. A central point is the applicability of the different methods to materials with different degree of order.
- Crystallographic basics
- Diffraction theory (kinematic/dynamic)
- Electron diffraction methods (parallel/convergent, electron beam precession)
- Tomography (direct/reciprocal)
- Phase problem and experimental/statistical solutions
- HRTEM (simulation of imaging and diffraction), holography
- Structure solution strategies (direct methods, simulated annealing, charge flipping)
- Structural refinement, kinematical/dynamic
Electron crystallography II, M.Sc./PhD, lecture and excercises, summer term
In this lecture, basic electron microscopic methods for structural characterization are combined with complmentary structural analysis methods (X-ray diffraction, neutron diffraction, NMR). In addition, other special methods of electron crystallography are taught. The available tools provide a wide range of structural analysis of nanostructured materials and thus a better understanding of physical properties.
- Coupling with complementary methods (X-ray powder diffractometry, NMR, spectroscopy),
- Special materials (superstructures/incommensurate compounds)
- Handling of radiation-sensitive materials
- Description of defects and their diffraction (DISCUS)
- Electron powder diffractometry
- Phase analysis with electron diffraction
- Precession electron diffraction (PED)
- Convergent beam electron diffraction (CBED)
- Ptychography
- Diffractive imaging
2012-2013 Biophysical Chemistry II, exercises (Prof. Dr. Carsten Sönnichsen)
2012 Special methods in electron microscopy (EELS, EDX, diffraction methods, tomography)
This lecture builds on the knowledge gained in "Introduction to electron microscopy" providing a deeper insight into special methods including diffraction and spectroscopy as well as the application of tomography.
2011-2012 Introduction to electron microscopy (physical basics, SEM, TEM, STEM, sample preparation)
In this lecture the physical and technical basis to understand electron microscopes and their capabilities are provided.
2011 PCIII, (thermodynamics, electro chemistry and reaction kinetics)
1998-2003 Structure-Properties relations, joined lecture with "Electronic properties of solids"
2013-2015 Electron crystallography I, M.Sc./PhD, lecture and excercises
In this lecture basic topics (crystallography, diffraction theory) will be elaborated. The most important electron diffraction methods, including the use of direct-space methods (for example HRTEM), for the structural characterization of nanoscale materials are discussed. A central point is the applicability of the different methods to materials with different degree of order.
- Crystallographic basics
- Diffraction theory (kinematic / dynamic)
- Electron diffraction methods (parallel / convergent, electron beam precession)
- Tomography (direct / reciprocal)
- Phase problem and experimental / statistical solutions
- HRTEM (simulation of imaging and diffraction), holography
- Structural solution strategies (direct methods, simulated annealing, charge flipping)
- Structural refinement, kinematical / dynamic
2014-2015 Electron crystallography II, M.Sc./PhD, lecture and excercises
In this lecture, basic electron microscopic methods for structural characterization are combined with complmentary structural analysis methods (X-ray diffraction, neutron diffraction, NMR). In addition, other special methods of electron crystallography are taught. The available tools provide a wide range of structural analysis of nanostructured materials and thus a better understanding of physical properties.
- Coupling with complementary methods (X-ray powder diffractometry, NMR, spectroscopy),
- Special materials (superstructures / incommensurate compounds)
- Handling of radiation-sensitive materials
- Description of defects and their diffraction (DISCUS)
- Electron powder diffractometry
- Phase analysis with electron diffraction
- Precession electron diffraction (PED)
- Convergent beam electron diffraction (CBED)
- Ptychography
- Diffractive imaging
2014/15 Mineral and Crystal Chemistry, B.Sc.
Introduction to driving forces of crystal formation, superior structural principles, classification into structural types, understanding of fundamental thermodynamic relationships
2014/15 Basics of crystallography, B.Sc., exercises
Basic understanding of a "crystal" and the various structural types. Crystal structure, lattice, ideal and real crystals, symmetry operations, 2- and 3-dimensional lattice types and axis systems, lattice points and lattice directions in 2- and 3-dimensional space, Bravais lattice types, designation of surfaces and lattice planes, point symmetry and Point groups, space groups, symmetry operations in unit cells, symmetry ranks of space groups.
2014 Transmission electron microscopy, B.Sc., lecture and exercises
Introduction to set-up, mode of operation and handling of a transmission electron microscope, measurement techniques in diffraction and imaging, as well as common evaluation methods, useful to identify and avoid artifacts
2014 Instrumental analytics II, B.Sc. Geosciences, part TEM, EELS, EDX, lecture and excercises
Learn basic analytical laboratory methods in the geosciences and their practical application. Assessment of possible applications and limits of the methods.
2014 Introduction to mineralogy, B.Sc., exercises
X-ray diffraction on crystals, mathematical principles (Bragg, Laue equation), various methods (rotary crystal method, powder diffractometry), electron diffraction on thin crystals, evaluation of electron diffraction diagrams, transmission electron microscopy and linked methods, phase diagrams, basic concepts, one-, two- and multi-component systems, various Two-component systems (eutectic, mixed crystal formation, incongruent melting).