Issue 9, 2012
From the journal:

Nanoscale

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

Hongtao Wang,‡ab   Kun Li,‡b   Yingchun Cheng,c   Qingxiao Wang,b   Yingbang Yao,b   Udo Schwingenschlögl,c   Xixiang Zhang*b  and  Wei Yanga  

* Corresponding authors

a Institute of Applied Mechanics, Zhejiang University, Hangzhou 310027, China

b Advanced Nanofabrication, Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal 239955, Kingdom of Saudi Arabia
E-mail: xixiang.zhang@kaust.edu.sa

c Materials Science and Engineering, King Abdullah University of Science and Technology, Thuwal 239955, Kingdom of Saudi Arabia

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.

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

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Article information

DOI
https://doi.org/10.1039/C2NR00059H
Article type
Paper
Submitted
09 Jan 2012
Accepted
06 Mar 2012
First published
09 Mar 2012

Nanoscale, 2012,4, 2920-2925

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

H. Wang, K. Li, Y. Cheng, Q. Wang, Y. Yao, U. Schwingenschlögl, X. Zhang and W. Yang, Nanoscale, 2012, 4, 2920 DOI: 10.1039/C2NR00059H

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