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Two-dimensional transition metal dichalcogenides under electron irradiation: defect production and doping
Hannu-Pekka Komsa, Jani Kotakoski, Simon Kurasch +3
Using first-principles atomistic simulations, we study the response of atomically-thin layers of transition metal dichalcogenides (TMDs) - a new class of two-dimensional inorganic…
Ion irradiation tolerance of graphene as studied by atomistic simulations
E. H. Åhlgren, J. Kotakoski, O. Lehtinen +1
As impermeable to gas molecules and at the same time transparent to high-energy ions, graphene has been suggested as a window material for separating a high-vacuum ion beam system…
Mechanical properties of polycrystalline graphene based on a realistic atomistic model
Jani Kotakoski, Jannik C. Meyer
Graphene can at present be grown at large quantities only by the chemical vapor deposition method, which produces polycrystalline samples. Here, we describe a method for constructi…
An accurate measurement of electron beam induced displacement cross sections for single-layer graphene
J. C. Meyer, F. Eder, S. Kurasch +9
We present an accurate measurement and a quantitative analysis of electron-beam induced displacements of carbon atoms in single-layer graphene. We directly measure the atomic displ…
Atomic-scale effects behind structural instabilities in Si lamellae during ion beam thinning
Eero Holmström, Jani Kotakoski, Lorenz Lechner +2
The rise of nanotechnology has created an ever-increasing need to probe structures on the atomic scale, to which transmission electron microscopy has largely been the answer. Curre…