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Arkady V. Krasheninnikov 1,2 1 Helmholtz Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Germany 2 Department of Applied Physics, Aalto University School of Science, Finland Following isolation of graphene, many other 2D systems, e.g., single sheets of transition metal dichalcogenides (TMDs) have been manufactured. All these materials contain defects and impurities, which may govern their electronic and optical properties. Moreover, defects can intentionally be introduced using beams of energetic particles – ions and electrons. All of these calls upon the studies on defects and mechanisms of their formation. In my talk, I will present the results [1] of our recent theoretical studies of defects (native and irradiation-induced) in inorganic 2D systems obtained in close collaboration with several experimental microscopy groups. I will further discuss defect- and impurity-mediated engineering of the electronic structure of TMDs. [1] https://users.aalto.fi/~ark/publist.html

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Arkady Krasheninnikov, Helmholtz Zentrum Dresden Rossensdorf
Seminar Room of the Institute of Physics II
Contact: T. Michely