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Band gap engineering of graphene/h-BN hybrid superlattices nanoribbons.

Li, S L*; Ren, Z Y*; Zheng, J M*; Zhou, Y X*; Wan, Y*; Hao, L (2013) Band gap engineering of graphene/h-BN hybrid superlattices nanoribbons. J. Appl. Phys., 113 (3). 033703

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Abstract

The electronic properties of one-dimensional superlattices which are alternately composed of graphene nanoribbon (GNR) and boron nitride nanoribbon (BNNR) with different unit ratio (GNR:BNNR) have been investigated by applying first-principles methods. The results show that the band gap of the superlattices is regulated in a wide range for both zigzag and armchair edges with increasing the BN proportion. With the increase of the BN proportion, the band gap increases either for zigzag edges superlattices or armchair edges superlattices. From analyzing the band structures, the local density of states, and the charge densities, the engineering mechanism is explored. Furthermore, the present results are coincidence with the conclusion of Kronig-Penney model.

Item Type: Article
Keywords: Graphene, Band gap, nanoribbins
Subjects: Quantum Phenomena
Quantum Phenomena > Nanophysics
Identification number/DOI: 10.1063/1.4776208
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5719

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