• 文献标题:   Molecular dynamics simulations of defect production in graphene by carbon irradiation
  • 文献类型:   Article
  • 作  者:   MARTINEZASENCIO J, CATURLA MJ
  • 作者关键词:   molecular dynamic, graphene, defect, irradiation
  • 出版物名称:   NUCLEAR INSTRUMENTS METHODS IN PHYSICS RESEARCH SECTION BBEAM INTERACTIONS WITH MATERIALS ATOMS
  • ISSN:   0168-583X EI 1872-9584
  • 通讯作者地址:   Univ Alicante
  • 被引频次:   6
  • DOI:   10.1016/j.nimb.2014.12.010
  • 出版年:   2015

▎ 摘  要

We present molecular dynamics simulations with empirical potentials to study the type of defects produced when irradiating graphene with low energy carbon ions (100 eV and 200 eV) and different dose rates. Simulations show the formation of very stable structures such as dimers, single chains of carbons and double chains of carbons. These structures are similar to those described in the literature, observed experimentally when irradiating graphene. For high doses or dose rates, the formation of nanopores is observed, similar to previous results by other authors for higher energies of the implanted ions. These simulations show how tunning the different parameters of irradiation conditions can be used to selectively create defects in graphene. (C) 2014 Elsevier B.V. All rights reserved.