Lateral Heterostructures of Graphene and h-BN with Atomic Lattice Coherence and Tunable Rotational Order
EntityUAM. Departamento de Física de la Materia Condensada; UAM. Departamento de Física de Materiales
10.1002/smll.202207217Small (2023): 2207217
ISSN1613-6810 (print); 1613-6829 (online)
Funded byFinancial support from the Spanish Ministerio de Economía y Competitividad (MINECO) and Fondo Europeo de Desarrollo Regional (FEDER) under grant No. MAT2016-77852-C2-2-R, as well as, from the Spanish Ministerio de Ciencia e Innovación through the “María de Maetzu” program for units of excellence in R&D (grant No. CEX2018-000805-M) was gratefully acknowledged. A. J. M.-G. acknowledged funding by the Spanish Ministerio de Ciencia e Innovación (MICINN through Project No. PID2020-116619GA-C22, as well as, by the Comunidad de Madrid and Universidad Autónoma de Madrid under Project No. SI3/PJI/2021-00500. Funding sources: Spanish MINECO (Ref: MAT2016-77852-C2-2-R). Spanish MICINN (Ref: PID2020-116619GA-C22). Comunidad de Madrid (CAM) and Universidad Autónoma de Madrid (UAM) (Ref: SI3/PJI/2021-00500)
ProjectGobierno de España. MAT2016-77852-C2-2-R; Gobierno de España. PID2020-116619GA-C22
Subjects2D materials; Domain boundaries; Lateral heterostructures; Oxygen intercalation; Scanning tunneling microscope (STM); Física
Rights© 2023 The Authors
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
In-plane heterostructures of graphene and hexagonal boron nitride (h-BN) exhibit exceptional properties, which are highly sensitive to the structure of the alternating domains. Nevertheless, achieving accurate control over their structural properties, while keeping a high perfection at the graphene-h-BN boundaries, still remains a challenge. Here, the growth of lateral heterostructures of graphene and h-BN on Rh(110) surfaces is reported. The choice of the 2D material, grown firstly, determines the structural properties of the whole heterostructure layer, allowing to have control over the rotational order of the domains. The atomic-scale observation of the boundaries demonstrates a perfect lateral matching. In-plane heterostructures floating over an oxygen layer have been successfully obtained, enabling to observe intervalley scattering processes in graphene regions. The high tuning capabilities of these heterostructures, along with their good structural quality, even around the boundaries, suggest their usage as test beds for fundamental studies aiming at the development of novel nanomaterials with tailored properties.
Google Scholar:Guo, Haojie - Garro Hernandorena, Ane - Martínez Galera, Antonio J. - Gómez Rodríguez, José M.
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