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Issue 24, 2015
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Atomic-scale dynamics of triangular hole growth in monolayer hexagonal boron nitride under electron irradiation

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Abstract

The production of holes by electron beam irradiation in hexagonal boron nitride (hBN), which has a lattice similar to that of graphene, is monitored over time using atomic resolution transmission electron microscopy. The holes appear to be initiated by the formation of a vacancy of boron and grow in a manner that retains an overall triangular shape. The hole growth process involves the formation of single chains of B and N atoms and is accompanied by the ejection of atoms and bundles of atoms along the hole edges, as well as atom migration. These observations are compared to density functional theory calculations and molecular dynamics simulations.

Graphical abstract: Atomic-scale dynamics of triangular hole growth in monolayer hexagonal boron nitride under electron irradiation

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Publication details

The article was received on 06 Mar 2015, accepted on 15 Apr 2015 and first published on 20 Apr 2015


Article type: Paper
DOI: 10.1039/C5NR01473E
Citation: Nanoscale, 2015,7, 10600-10605
  • Open access: Creative Commons BY-NC license
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    Atomic-scale dynamics of triangular hole growth in monolayer hexagonal boron nitride under electron irradiation

    G. H. Ryu, H. J. Park, J. Ryou, J. Park, J. Lee, G. Kim, H. S. Shin, C. W. Bielawski, R. S. Ruoff, S. Hong and Z. Lee, Nanoscale, 2015, 7, 10600
    DOI: 10.1039/C5NR01473E

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