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Direct observation of layer-stacking and oriented wrinkles in multilayer hexagonal boron nitride
- Source :
- 2D materials
- Publication Year :
- 2021
-
Abstract
- Hexagonal boron nitride (h-BN) has long been recognized as an ideal substrate for electronic devices due to its dangling-bond-free surface, insulating nature and thermal/chemical stability. Therefore, to analyse the lattice structure and orientation of h-BN crystals becomes important. Here, the stacking order and wrinkles of h-BN are investigated by transmission electron microscopy (TEM). It is experimentally confirmed that the layers in the h-BN flakes are arranged in the AA' stacking. The wrinkles in a form of threefold network throughout the h-BN crystal are oriented along the armchair direction, and their formation mechanism was further explored by molecular dynamics simulations. Our findings provide a deep insight about the microstructure of h-BN and shed light on the structural design/electronic modulations of two-dimensional crystals.<br />7 pages, 5 figures
- Subjects :
- Condensed Matter - Materials Science
Materials science
Physics
Mechanical Engineering
Stacking
Materials Science (cond-mat.mtrl-sci)
FOS: Physical sciences
General Chemistry
Substrate (electronics)
Crystal structure
Condensed Matter Physics
Microstructure
Crystal
Molecular dynamics
Mechanics of Materials
Transmission electron microscopy
General Materials Science
Composite material
Layer (electronics)
Subjects
Details
- Language :
- English
- ISSN :
- 20531583
- Database :
- OpenAIRE
- Journal :
- 2D materials
- Accession number :
- edsair.doi.dedup.....0f860ebd34f8cab42043e7161159a7ae