Jump to main content
Jump to site search

Issue 45, 2017
Previous Article Next Article

Tuning the electronic and quantum transport properties of nitrogenated holey graphene nanoribbons

Author affiliations

Abstract

Recently, a new semiconductor two-dimensional (2D) material, namely, holey nitrogenated graphene 2D crystal (C2N-h2D), has been fabricated by using a bottom-up wet-chemical reaction. Using first-principles density functional theory (DFT) combined with the non-equilibrium Green's function (NEGF) technique, we investigate the atomic, electronic and quantum transport properties of porous C2N nanoribbons having both zigzag- and armchair-terminated edges. The zigzag C2N-h nanoribbons (ZC2N-hNRs) are semiconductors with an indirect band gap that decreases as the ribbon width increases. Meanwhile, the armchair C2N-h nanoribbons (AC2N-hNRs) show a metallic behavior for all ribbon widths, except for one of the candidates considered in this study, which presents a small band gap (0.14 eV). Interestingly, non-equilibrium calculations suggest that these structures display edge-dependent electronic transport properties where the armchair C2N-hNRs show a strong negative differential resistance (NDR) behavior with current peak-to-valley ratios that remarkably increase with increasing ribbon width, and non-linear current–voltage characteristics were found for the zigzag C2N-hNRs.

Graphical abstract: Tuning the electronic and quantum transport properties of nitrogenated holey graphene nanoribbons

Back to tab navigation

Supplementary files

Publication details

The article was received on 30 Jul 2017, accepted on 25 Oct 2017 and first published on 26 Oct 2017


Article type: Paper
DOI: 10.1039/C7TC03424E
Citation: J. Mater. Chem. C, 2017,5, 11856-11866
  •   Request permissions

    Tuning the electronic and quantum transport properties of nitrogenated holey graphene nanoribbons

    A. Saraiva-Souza, M. Smeu, J. G. da Silva Filho, E. C. Girão and H. Guo, J. Mater. Chem. C, 2017, 5, 11856
    DOI: 10.1039/C7TC03424E

Search articles by author

Spotlight

Advertisements