Understanding the role of defects in nanoscale patterning in graphene

ORAL

Abstract

Graphene’s unique intrinsic properties have been great interests, and atomic scale modification of graphene is expected to control over its properties through geometric and strain effects. The focused beam of a scanning transmission electron microscope (STEM) was used in manipulating graphene atoms in an atomic scale. To understand graphene healing and the diffusion of defects, competing processes in graphene milling, we performed classical molecule dynamics simulations at various temperatures and revealed dynamics of the processes.

*This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division.

Publication: Dyck, O., Yeom, S., Dillender, S., Lupini, A.R., Yoon, M. and Jesse, S., 2023. The role of temperature on defect diffusion and nanoscale patterning in graphene. Carbon, 201, pp.212-221.

Presenters

  • Sinchul Yeom

    • Oak Ridge National Laboratory

Authors

  • Sinchul Yeom

    • Oak Ridge National Laboratory
  • Ondrej Dyck

    • Oak Ridge National Laboratory
  • Mina Yoon

    • Oak Ridge National Lab
  • Andrew R Lupini

    • Oak Ridge National Lab
  • Stephen Jesse

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory
    • OAK RIDGE NATIONAL LABORATORY