Unknown

Dataset Information

0

Unraveling the 3D Atomic Structure of a Suspended Graphene/hBN van der Waals Heterostructure.

ABSTRACT: In this work we demonstrate that a free-standing van der Waals heterostructure, usually regarded as a flat object, can exhibit an intrinsic buckled atomic structure resulting from the interaction between two layers with a small lattice mismatch. We studied a freely suspended membrane of well-aligned graphene on a hexagonal boron nitride (hBN) monolayer by transmission electron microscopy (TEM) and scanning TEM (STEM). We developed a detection method in the STEM that is capable of recording the direction of the scattered electron beam and that is extremely sensitive to the local stacking of atoms. A comparison between experimental data and simulated models shows that the heterostructure effectively bends in the out-of-plane direction, producing an undulated structure having a periodicity that matches the moiré wavelength. We attribute this rippling to the interlayer interaction and also show how this affects the intralayer strain in each layer.

SUBMITTER: Argentero G 

PROVIDER: S-EPMC5345117 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

In this work we demonstrate that a free-standing van der Waals heterostructure, usually regarded as a flat object, can exhibit an intrinsic buckled atomic structure resulting from the interaction between two layers with a small lattice mismatch. We studied a freely suspended membrane of well-aligned graphene on a hexagonal boron nitride (hBN) monolayer by transmission electron microscopy (TEM) and scanning TEM (STEM). We developed a detection method in the STEM that is capable of recording the d  ...[more]

Similar Datasets

Unknown Graphene oxide-graphene Van der Waals heterostructure transistor biosensor for SARS-CoV-2 protein detection.
| S-EPMC8719368 | biostudies-literature
Unknown Atomically Sharp Interface in an h-BN-epitaxial graphene van der Waals Heterostructure.
| S-EPMC4653732 | biostudies-other
Unknown Atomic-Scale Deformations at the Interface of a Mixed-Dimensional van der Waals Heterostructure.
| S-EPMC6117744 | biostudies-literature
Unknown Synthesis of AAB-Stacked Single-Crystal Graphene/hBN/Graphene Trilayer van der Waals Heterostructures by In Situ CVD.
| S-EPMC9313474 | biostudies-literature
Unknown Ultra-long carrier lifetime in neutral graphene-hBN van der Waals heterostructures under mid-infrared illumination.
| S-EPMC7018796 | biostudies-literature
Unknown Franckeite as a naturally occurring van der Waals heterostructure.
| S-EPMC5316837 | biostudies-other
Unknown Multiferroicity in atomic van der Waals heterostructures.
| S-EPMC6570651 | biostudies-literature
Unknown Temperature and interlayer coupling induced thermal transport across graphene/2D-SiC van der Waals heterostructure.
| S-EPMC8760313 | biostudies-literature
Unknown Atomic-Scale Carving of Nanopores into a van der Waals Heterostructure with Slow Highly Charged Ions.
| S-EPMC7450701 | biostudies-literature
Unknown Light generation and harvesting in a van der Waals heterostructure.
| S-EPMC3971963 | biostudies-other