Plasma-assisted self-sharpening of platelet-structured single-crystalline carbon nanocones

被引：85
作者：
Levchenko, I.
Ostrikov, K. [1 ]
Long, J. D.
Xu, S.
机构：
[1] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia
[2] Nanyang Technol Univ, PSAC, NIE, IAS, Singapore 637616, Singapore
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 11期
基金：
澳大利亚研究理事会;
关键词：
D O I：
10.1063/1.2784932
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A mechanism and model for the vertical growth of platelet-structured vertically aligned single-crystalline carbon nanostructures by the formation of graphene layers on a flat top surface are proposed and verified experimentally. It is demonstrated that plasma-related effects lead to self-sharpening of tapered nanocones to form needlelike nanostructures, in a good agreement with the predicted dependence of the radius of a nanocone's flat top on the incoming ion flux and surface temperature. The growth mechanism is relevant to a broad class of nanostructures including nanotips, nanoneedles, and nanowires and can be used to improve the predictability of nanofabrication processes.
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页数：3
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  • [1] Growth of vertically aligned carbon nanofibers by low-pressure inductively coupled plasma-enhanced chemical vapor deposition
    Caughman, JBO
    Baylor, LR
    Guillorn, MA
    Merkulov, VI
    Lowndes, DH
    Allard, LF
    [J]. APPLIED PHYSICS LETTERS, 2003, 83 (06) : 1207 - 1209
  • [2] Behaviour of oxygen atoms near the surface of nanostructured Nb2O5
    Cvelbar, U.
    Mozetic, M.
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (08) : 2300 - 2303
  • [3] Ion-assisted precursor dissociation and surface diffusion: Enabling rapid, low-temperature growth of carbon nanofibers
    Denysenko, I.
    Ostrikov, K.
    [J]. APPLIED PHYSICS LETTERS, 2007, 90 (25)
  • [4] Inductively coupled Ar/CH4/H2 plasmas for low-temperature deposition of ordered carbon nanostructures
    Denysenko, IB
    Xu, S
    Long, JD
    Rutkevych, PP
    Azarenkov, NA
    Ostrikov, K
    [J]. JOURNAL OF APPLIED PHYSICS, 2004, 95 (05) : 2713 - 2724
  • [5] Electronic temperature and density of the plasma produced by nanosecond ultraviolet laser ablation of LiF -: art. no. 181501
    Gordillo-Vázquez, FJ
    Perea, A
    Mckiernan, AP
    Afonso, CN
    [J]. APPLIED PHYSICS LETTERS, 2005, 86 (18) : 1 - 3
  • [6] Low temperature (<100 °C) patterned growth of ZnO nanorod arrays on Si
    Kang, B. S.
    Pearton, S. J.
    Ren, F.
    [J]. APPLIED PHYSICS LETTERS, 2007, 90 (08)
  • [7] Current-driven ignition of single-wall carbon nanotubes
    Keidar, M
    Raitses, Y
    Knapp, A
    Waas, AM
    [J]. CARBON, 2006, 44 (05) : 1022 - 1024
  • [8] Plasma drift and nonuniformity effects in plasma immersion ion implantation
    Keidar, M
    Monteiro, OR
    Brown, IG
    [J]. APPLIED PHYSICS LETTERS, 2000, 76 (21) : 3002 - 3004
  • [9] Magnetic field effect on the sheath thickness in plasma immersion ion implantation
    Keidar, M
    Monteiro, OR
    Anders, A
    Boyd, ID
    [J]. APPLIED PHYSICS LETTERS, 2002, 81 (07) : 1183 - 1185
  • [10] Catalytic growth of single-wall carbon nanotubes: An ab initio study
    Lee, YH
    Kim, SG
    Tomanek, D
    [J]. PHYSICAL REVIEW LETTERS, 1997, 78 (12) : 2393 - 2396
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