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research article

Growth of Graphene Nanoflakes/h-BN Heterostructures

Kuester, Kathrin
•
Hooshmand, Zahra
•
Rosenblatt, Daniel Pablo
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September 26, 2021
Advanced Materials Interfaces

2D materials such as graphene, hexagonal boron nitride (h-BN), or transition metal dichalcogenides, and their heterostacks are gaining increasing interest because of their extraordinary properties, which can range from superconductivity to large charge carrier mobilities. In this paper, the electronic and structural modifications of h-BN on Rh(111) are investigated by the intercalation of carbon forming graphene nanoflakes between the h-BN and the Rh(111) surface. The carbon atoms-natural impurities in Rh bulk crystals-diffuse to the surface during the h-BN growth and segregate there during cooling. The graphene nanoflakes are present at particular sites under the wires of the h-BN nanomesh leading to an altered appearance of the Moire pattern and modified electronic and chemical properties. Thus, a novel fabrication route of graphene nanoflakes located in a heterostack between Rh(111) and h-BN is shown by steering the segregation of carbon impurities at the rhodium surface.

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Type
research article
DOI
10.1002/admi.202100766
Web of Science ID

WOS:000699876800001

Author(s)
Kuester, Kathrin
•
Hooshmand, Zahra
•
Rosenblatt, Daniel Pablo
•
Koslowski, Sebastian
•
Le, Duy
•
Starke, Ulrich
•
Rahman, Talat S.
•
Kern, Klaus  
•
Schlickum, Uta
Date Issued

2021-09-26

Published in
Advanced Materials Interfaces
Article Number

2100766

Subjects

Chemistry, Multidisciplinary

•

Materials Science, Multidisciplinary

•

Chemistry

•

Materials Science

•

2d heterostructures

•

density functional theory

•

hexagonal boron nitride

•

scanning tunneling microscopy and spectroscopy

•

hexagonal boron-nitride

•

electronic-properties

•

carbon

•

transition

•

rhodium

•

adsorption

•

layers

•

solubility

Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LSEN  
Available on Infoscience
October 23, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/182497
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