Measuring and Manipulating Properties of Low-D Materials at the Atomic Scale
Ute Kaiser
Central Facility Materials Science Electron Microscopy, Ulm University, Albert-Einstein Allee 11, 89081 Ulm, Germany,
We have known for about 2500 years that the world is made of atoms. But only recently we learn that the well-defined arrangement of atoms in two dimensions leads to materials with extraordinary solid-state and quantum properties. And it is precisely in these well-defined thin materials that we are beginning to use the developments in aberration-corrected low-voltage electron microscopy that have taken place in parallel to image individual defects including their movement. We begin to investigate the properties of the two-dimensional inorganic material by electron beam-induced defect formation at the atomic level, analyze the results using neural networks, and understand the material properties through quantum mechanical calculations. We also report our strategy for molecular resolution of organic two-dimensional materials and present basic findings in materials physics and chemistry.
In my talk, I will first overview the fundamental methodological developments and then present selected examples from the field of low-dimensional inorganic and organic materials.
Lecture time: 9:30 am to 10:30 am, 26th November, 2024
Place: Room 512 (5th floor), No. 11 Teaching Bld. Yuquan Campus
Tencent Meeting Room: 471 169 805
Ute Kaiser received her Diploma and her PhD in Crystallography/Physics from the Humboldt University Berlin, her Habilitation in Experimental Physics from the Friedrich-Schiller University, Jena, Germany, in 2002. Since 2004 she is full professor at Ulm University in the Physics Department and Head of Ulm’s Materials Science Electron Microscopy. She is the Scientific Director of the SALVE (Sub Angstroem Low-Voltage Electron Microscopy) project. By means of this unique low-voltage spherical and chromatic aberration-corrected TEM instrument, she dedicates most of her work to unravel and functionalize the crystallographic and electronic properties of low-dimensional materials. Ute Kaiser has more than 400 peer-reviewed articles, and holds several honorary adjunct positions. She is currently the Physical-Sciences Editor for the Journal Micron.
