Abstract
Stacking different two-dimensional (2D) atomic layers is a feasible approach to create unique multilayered van der Waals heterostructures with desired properties. 2D materials, graphene, hexagonal boron nitride (h-BN), molybdenum disulphate (MoS2) and graphene based van der Waals heterostructures, such as h-BN/graphene and MoS2/graphene have been investigated by means of Scanning Transmission Electron Microscopy (STEM).
Highlights
In recent years, two-dimensional (2D) materials including graphene, hexagonal boron nitride, and transition metal dichalcogenides (TMDs) have attracted great attention for applications in fields
We present a (S)transmission electron microscopy mode (TEM) study of graphene/hexagonal boron nitride (h-BN) and graphene/MoS2 heterostrusctures with an emphasis on their lateral interfaces where heterostructures meet the graphene layer
In the low magnification TEM image in figure1(a) four holes in lacey carbon film on the TEM grid are fully covered with single layer graphene and the single layer h-BN covers almost two holes, the right side of the figure1(a)
Summary
Two-dimensional (2D) materials including graphene, hexagonal boron nitride (hBN), and transition metal dichalcogenides (TMDs) have attracted great attention for applications in fields. We present a (S)TEM study of graphene/h-BN and graphene/MoS2 heterostrusctures with an emphasis on their lateral interfaces where heterostructures meet the graphene layer. 3. Results and Discussion Figure 1 shows low magnification TEM image and diffraction patterns of the graphene/h-BN heterostructure.
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