Displacement of carbon atoms in few-layer graphene Academic Article uri icon

abstract

  • Molecular dynamics simulations were performed to study the susceptibility of carbon atom displacement under electron irradiation. The mapping of threshold displacement energies at different recoiling directions showed that the energies are very sensitive to the layer configurations and positions of neighboring atoms. Carbon atoms on the top and the bottom layers of few-layer graphene are most vulnerable to irradiation damage due to lack of constraints from the neighboring graphene layers. As indirect experiment evidence, transmission electron microscopy was performed on the edge of folded few-layer graphene, which made it possible to reveal the inside and compare irradiation tolerance of atoms at different layers, by using an electron analysis beam for both displacement creation and in situ characterization.

published proceedings

  • JOURNAL OF APPLIED PHYSICS

author list (cited authors)

  • Wang, J., Chen, D. i., Chen, T., & Shao, L.

citation count

  • 2

complete list of authors

  • Wang, Jing||Chen, Di||Chen, Tianyi||Shao, Lin

publication date

  • August 2020