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Article overview
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Atomic-Precision Fabrication of Quasi-Full-Space Grain Boundaries in Two-Dimensional Hexagonal Boron Nitride | | Xibiao Ren
; Xiaowei Wang
; Chuanhong Jin
; | | Date: |
5 Oct 2019 | | Abstract: | Precise control and in-depth understanding of the interfaces is crucial for
the functionality-oriented material design with desired properties. Herein, via
modifying the long-standing bicrystal strategy, we proposed a novel nanowelding
approach to build up interfaces between two-dimensional (2D) materials with
atomic precision. This method enabled us, for the first time, to experimentally
achieve the quasi-full-parameter-space grain boundaries (GBs) in 2D hexagonal
boron nitride (h-BN). It further helps us unravel the long-term controversy and
confusion on the registry of GBs in h-BN, including i) discriminate the
relative contribution of the strain and chemical energy on the registry of GBs;
ii) identify a new dislocation core- Frank partial dislocation and four new
anti-phase boundaries; and iii) confirm the universal GB faceting. Our work
provides a new paradigm to the exploiting of structural-property correlation of
interfaces in 2D materials. | | Source: | arXiv, 1910.2199 | | Services: | Forum | Review | PDF | Favorites | |
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