Interaction between single gold atom and the graphene edge: A study via aberration-corrected transmission electron microscopy

Hongtao Wang, Kun Li, Yingchun Cheng, Qingxiao Wang, Yingbang Yao, Udo Schwingenschlögl, Xixiang Zhang, Wei Yang

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

Interaction between single noble metal atoms and graphene edges has been investigated via aberration-corrected and monochromated transmission electron microscopy. A collective motion of the Au atom and the nearby carbon atoms is observed in transition between energy-favorable configurations. Most trapping and detrapping processes are assisted by the dangling carbon atoms, which are more susceptible to knock-on displacements by electron irradiation. Thermal energy is lower than the activation barriers in transition among different energy-favorable configurations, which suggests electron-beam irradiation can be an efficient way of engineering the graphene edge with metal atoms. © 2012 The Royal Society of Chemistry.
Original languageEnglish (US)
Pages (from-to)2920
JournalNanoscale
Volume4
Issue number9
DOIs
StatePublished - 2012

ASJC Scopus subject areas

  • Materials Science(all)

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