• 文献标题:   First-principles calculations of Pd-terminated symmetrical armchair graphene nanoribbons
  • 文献类型:   Article
  • 作  者:   KULOGLU AF, SARIKAVAKLISESIVDIN B, LISESIVDIN SB, OZBAY E
  • 作者关键词:   palladium, termination, passivation, graphene, gnr, nanoribbon
  • 出版物名称:   COMPUTATIONAL MATERIALS SCIENCE
  • ISSN:   0927-0256
  • 通讯作者地址:   Gazi Univ
  • 被引频次:   16
  • DOI:   10.1016/j.commatsci.2012.10.011
  • 出版年:   2013

▎ 摘  要

The effects of Palladium (Pd) termination on the electronic properties of armchair graphene nanoribbons (AGNRs) were calculated by using ab initio calculations. After a geometric optimization process, the electronic band structures, density of states, and binding energies of AGNRs with N-a = 5-15 were calculated. Pd-termination was found to significantly influence the electronic properties of AGNRs. In DOS, many Q0D and Q1D type states were observed. Binding energy (BE) for single-side or both-side Pd-terminated structures represents characteristic drops with the increasing GNR width. With the increasing GNR width, the BEs of these structures become similar to hydrogenated structures. Because of the GNR width, dependent BE also gave information on the possible stiffness information, in which all of this information can be used in studies where controlled binding to graphene is required. (C) 2012 Elsevier B.V. All rights reserved.