Quantifying transmission electron microscopy irradiation effects using two-dimensional materials
arXiv:1912.01877 · doi:10.1038/s42254-019-0058-y
Abstract
Important recent advances in transmission electron microscopy instrumentation and capabilities have made it indispensable for atomic-scale materials characterization. At the same time, the availability of two-dimensional materials has provided ideal samples where each atom or vacancy can be resolved. Recent studies have also revealed new possibilities for a different application of focused electron irradiation: the controlled manipulation of structures and even individual atoms. Evaluating the full range of future possibilities for this method requires a precise physical understanding of the interactions of electrons with energies as low as 15 keV now used in (scanning) transmission electron microscopy, becoming feasible due to advances both in experimental techniques and in theoretical models. We summarize the state of current knowledge of the underlying physical processes based on the latest results on two-dimensional materials, with a focus on the physical principles of the electron-matter interaction, rather than the material-specific irradiation-induced defects it causes.
18 pages, 2 boxes, 2 figures, 1 table
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- Combined electronic excitation and knock-on damage in monolayer MoS2
- The role of temperature on defect diffusion and nanoscale patterning in graphene
- Ionization and electron excitation of fullerene molecules in a carbon nanotube. A variable temperature/voltage transmission electron microscopic study
- CuAu, a hexagonal two-dimensional metal
- Mechanism of electron-beam manipulation of single dopant atoms in silicon
- Indirect measurement of the carbon adatom migration barrier on graphene
- Creation and Microscopic Origins of Single-Photon Emitters in Transition Metal Dichalcogenides and Hexagonal Boron Nitride
- First principles study of stability of MXenes under electron beam
- Three-dimensional description of vibration-assisted electron knock-on damage
- Quantitative electron beam-single atom interactions enabled by sub-20-pm precision targeting
- Quantifying Phase Magnitudes of Open-Source Focused-Probe 4D-STEM Ptychography Reconstructions
- Mechanisms of radiation-induced structural transformations in deposited gold clusters
- Autocorrected Off-axis Holography of 2D Materials
- Hexatic Phase in Covalent Two-Dimensional Silver Iodide