• 文献标题:   Band gap engineering of graphene/h-BN hybrid superlattices nanoribbons
  • 文献类型:   Article
  • 作  者:   LI SL, REN ZY, ZHENG JM, ZHOU YX, WAN Y, HAO L
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF APPLIED PHYSICS
  • ISSN:   0021-8979
  • 通讯作者地址:   NW Univ Xian
  • 被引频次:   16
  • DOI:   10.1063/1.4776208
  • 出版年:   2013

▎ 摘  要

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. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4776208]