• 文献标题:   Topology and doping effects in three-dimensional nanoporous graphene
  • 文献类型:   Article
  • 作  者:   DI BERNARDO I, AVVISATI G, CHEN CY, AVILA J, ASENSIO MC, HU KL, ITO Y, HINES P, LIPTONDUFFIN J, RINTOUL L, MOTTA N, MARIANI C, BETTI MG
  • 作者关键词:  
  • 出版物名称:   CARBON
  • ISSN:   0008-6223 EI 1873-3891
  • 通讯作者地址:   Sapienza Univ
  • 被引频次:   11
  • DOI:   10.1016/j.carbon.2018.01.076
  • 出版年:   2018

▎ 摘  要

We report on a spatial mapping of the electronic and vibrational structure of three-dimensional (3D) nanoporous graphene architectures, which have a hierarchical pore structure. We demonstrate that the topology, curvature, and pores lead to local changes in the electronic and vibrational structure and in the hybridization states of the carbon atoms (sp(2) vs. sp(3)-like). Nitrogen substitutions in pyrrolic bonding configurations also contribute to local distortions of the planar geometry of graphene. The distortions influence the electronic density of states at the Fermi level by shifting the Dirac cone apex, opening potential avenues for applications of two-dimensional graphene in 3D devices. (c) 2018 Published by Elsevier Ltd.