Reducing disorder in graphene nanoribbons by chemical edge modification

被引：16
|
作者：
Dauber, J. [1 ,2 ,3 ]
Terres, B. [1 ,2 ,3 ]
Volk, C. [1 ,2 ,3 ]
Trellenkamp, S. [3 ]
Stampfer, C. [1 ,2 ,3 ]
机构：
[1] Rhein Westfal TH Aachen, JARA FIT, D-52074 Aachen, Germany
[2] Rhein Westfal TH Aachen, Inst Phys 2, D-52074 Aachen, Germany
[3] Forschungszentrum Julich, PGI 8 9, D-52425 Julich, Germany
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 08期
关键词：
SUSPENDED GRAPHENE; BORON-NITRIDE; SPECTROSCOPY; ELECTRONICS;
D O I：
10.1063/1.4866289
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present electronic transport measurements on etched graphene nanoribbons on silicon dioxide before and after a short hydrofluoric acid (HF) treatment. We report on changes in the transport properties, in particular, in terms of a decreasing transport gap and a reduced doping level after HF dipping. Interestingly, the effective energy gap is nearly unaffected by the HF treatment. Additional measurements on a graphene nanoribbon with lateral graphene gates support strong indications that the HF significantly modifies the edges of the investigated nanoribbons leading to a significantly reduced disorder potential in these graphene nanostructures. (C) 2014 AIP Publishing LLC.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Magnetic edge states and coherent manipulation of graphene nanoribbons
    Slota, Michael
    Keerthi, Ashok
    Myers, William K.
    Tretyakov, Evgeny
    Baumgarten, Martin
    Ardavan, Arzhang
    Sadeghi, Hatef
    Lambert, Colin J.
    Narita, Akimitsu
    Muellen, Klaus
    Bogani, Lapo
    NATURE, 2018, 557 (7707) : 691 - +
  • [2] Auger ionization in armchair-edge graphene nanoribbons
    Konabe, S.
    Onoda, N.
    Watanabe, K.
    PHYSICAL REVIEW B, 2010, 82 (07)
  • [3] Insulating State in Low-Disorder Graphene Nanoribbons
    Epping, Alexander
    Volk, Christian
    Buckstegge, Frederic
    Watanabe, Kenji
    Taniguchi, Takashi
    Stampfer, Christoph
    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2019, 256 (12):
  • [4] Anthenes: Model systems for understanding the edge state of graphene nanoribbons
    Konishi, Akihito
    Hirao, Yasukazu
    Kurata, Hiroyuki
    Kubo, Takashi
    Nakano, Masayoshi
    Kamada, Kenji
    PURE AND APPLIED CHEMISTRY, 2014, 86 (04) : 497 - 505
  • [5] The influence of edge structure on the electronic properties of graphene quantum dots and nanoribbons
    Ritter, Kyle A.
    Lyding, Joseph W.
    NATURE MATERIALS, 2009, 8 (03) : 235 - 242
  • [6] Investigating the edge state of graphene nanoribbons by a chemical approach: Synthesis and magnetic properties of zigzag-edged nanographene molecules
    Konishi, Akihito
    Hirao, Yasukazu
    Kurata, Hiroyuki
    Kubo, Takashi
    SOLID STATE COMMUNICATIONS, 2013, 175 : 62 - 70
  • [7] Band Gap Engineering via Edge-Functionalization of Graphene Nanoribbons
    Wagner, Philipp
    Ewels, Christopher P.
    Adjizian, Jean-Joseph
    Magaud, Laurence
    Pochet, Pascal
    Roche, Stephan
    Lopez-Bezanilla, Alejandro
    Ivanovskaya, Viktoria V.
    Yaya, Abu
    Rayson, Mark
    Briddon, Patrick
    Humbert, Bernard
    JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (50) : 26790 - 26796
  • [8] Spin filter effects in zigzag-edge graphene nanoribbons with symmetric and asymmetric edge hydrogenations
    Deng, X. Q.
    Zhang, Z. H.
    Tang, G. P.
    Fan, Z. Q.
    Yang, C. H.
    CARBON, 2014, 66 : 646 - 653
  • [9] Fjord-Edge Graphene Nanoribbons with Site-Specific Nitrogen Substitution
    Li, Yolanda L.
    Zee, Chih-Te
    Lin, Janice B.
    Basile, Victoria M.
    Muni, Mit
    Flores, Maria D.
    Munarriz, Julen
    Kaner, Richard B.
    Alexandrova, Anastassia N.
    Houk, K. N.
    Tolbert, Sarah H.
    Rubin, Yves
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2020, 142 (42) : 18093 - 18102
  • [10] Thermodynamics of a Potts-like model for a reconstructed zigzag edge in graphene nanoribbons
    Rodrigues, J. N. B.
    Goncalves, P. A. D.
    Santos, Jaime E.
    Castro Neto, A. H.
    PHYSICAL REVIEW B, 2013, 87 (13)
12345