Robust Ballistic Transport in Narrow Armchair-Edge Graphene Nanoribbons with Chemical Edge Disorder

被引：7
作者：
Gunlycke, Daniel [1 ]
Mintmire, John W. [2 ]
White, Carter T. [1 ]
机构：
[1] USN, Res Lab, Div Chem, Washington, DC 20375 USA
[2] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2010年 / 1卷 / 07期
关键词：
CARBON NANOTUBES; DENSITY; WIRES;
D O I：
10.1021/jz100046q
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A semiempirical model based on density functional results is used to study the effects of chemical edge disorder on the transport properties of armchair-edge graphene nanoribbons. Despite a strong scattering potential induced by substituting randomly F for H atoms along their edges, carriers injected close to the band gap in ribbons as narrow as 4.8 nm exhibit ballistic transport over hundreds of nanometers. The results indicate that robust ballistic transport can be maintained in the presence of chemical edge disorder so long as the terminating atoms and/or functional groups remain one-fold-coordinated to the edges and do not contribute states to the pi-network within several eV of the gap.
引用
收藏
页码：1082 / 1085
页数：4
相关论文
共 30 条
  • [11] Longitudinal unzipping of carbon nanotubes to form graphene nanoribbons
    Kosynkin, Dmitry V.
    Higginbotham, Amanda L.
    Sinitskii, Alexander
    Lomeda, Jay R.
    Dimiev, Ayrat
    Price, B. Katherine
    Tour, James M.
    [J]. NATURE, 2009, 458 (7240) : 872 - U5
  • [12] Chemically derived, ultrasmooth graphene nanoribbon semiconductors
    Li, Xiaolin
    Wang, Xinran
    Zhang, Li
    Lee, Sangwon
    Dai, Hongjie
    [J]. SCIENCE, 2008, 319 (5867) : 1229 - 1232
  • [13] LOCAL-DENSITY FUNCTIONAL-APPROACH TO ALL-TRANS-POLYACETYLENE
    MINTMIRE, JW
    WHITE, CT
    [J]. PHYSICAL REVIEW B, 1983, 28 (06) : 3283 - 3290
  • [14] THE THEORY OF IMPURITY CONDUCTION
    MOTT, NF
    TWOSE, WD
    [J]. ADVANCES IN PHYSICS, 1961, 10 (38) : 107 - 163
  • [15] Analysis of graphene nanoribbons as a channel material for field-effect transistors
    Obradovic, B
    Kotlyar, R
    Heinz, F
    Matagne, P
    Rakshit, T
    Giles, MD
    Stettler, MA
    Nikonov, DE
    [J]. APPLIED PHYSICS LETTERS, 2006, 88 (14)
  • [16] Approaching the Dirac Point in High-Mobility Multilayer Epitaxial Graphene
    Orlita, M.
    Faugeras, C.
    Plochocka, P.
    Neugebauer, P.
    Martinez, G.
    Maude, D. K.
    Barra, A. -L.
    Sprinkle, M.
    Berger, C.
    de Heer, W. A.
    Potemski, M.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 101 (26)
  • [17] Comparison of performance limits for carbon nanoribbon and carbon nanotube transistors
    Ouyang, Yijian
    Yoon, Youngki
    Fodor, James K.
    Guo, Jing
    [J]. APPLIED PHYSICS LETTERS, 2006, 89 (20)
  • [18] Ouyang Y, 2008, INT EL DEVICES MEET, P517
  • [19] When things are not as they seem: Quantum interference turns molecular electron transfer "Rules" upside down
    Solomon, Gemma C.
    Andrews, David Q.
    Van Duyne, Richard P.
    Ratner, Mark A.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (25) : 7788 - +
  • [20] Energy gaps in graphene nanoribbons
    Son, Young-Woo
    Cohen, Marvin L.
    Louie, Steven G.
    [J]. PHYSICAL REVIEW LETTERS, 2006, 97 (21)
123