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. 2018 Oct 2;11(10):1885. doi: 10.3390/ma11101885

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Electron-irradiation effects in non-graphene 2D materials. (a) Triangular vacancies formed into hexagonal boron nitride under electron irradiation at 80 kV. The red and blue marks stand for atoms of the two different elements. The scale bar is 1 nm. Reprinted with permission from Ref. [66], Copyright (2009) American Chemical Society. (b) Accumulation of defects close to an edge of MoS $_{2}$ under 80 kV electron irradiation. In the last frame (bottom), the created vacancies have arranged into line-defects oriented with respect to the edge. Reprinted with permission from Ref. [68], Copyright (2013) American Physical Society. (c) Phase transition 1H→1T’ in MoTe $_{2}$ caused by electron irradiation at 60 kV. Scale bar is 0.5 nm. From Ref. [70], https://pubs.acs.org/doi/10.1021/acs.chemmater.7b03760.