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  • 文献标题:   Electronic properties and conductance suppression of defected and doped zigzag graphene nanoribbons
  • 文献类型:   Article
  • 作　　者:   CAO C, CHEN LN, ZHANG D, HUANG WR, MA SS, XU H
  • 作者关键词:   graphene nanoribbon, electronic structures transport property, impurity defect, firstprinciple
  • 出版物名称:   SOLID STATE COMMUNICATIONS
  • ISSN:   0038-1098 EI 1879-2766
  • 通讯作者地址:   Cent S Univ
  • 被引频次:   13
  • DOI:   10.1016/j.ssc.2011.10.004
  • 出版年:   2012

▎ 摘　　要

By using the first-principles calculation based on density functional theory, we investigate the electronic structures and transport properties of the defected and doped zigzag graphene nanoribbons (ZGNRs). The effects of multivacancies defects and impurities have been considered. The results show that band structures of ZGNRs can be tuned strongly and currents drop drastically due to the defect and impurities. Moreover, the notable suppression of conductance can be found near the Fermi level, leading to the negative differential resistance (NDR) behavior under low bias. This effect presents a possibility in novel nanoelectronics devices application. (C) 2011 Elsevier Ltd. All rights reserved.