Size-selected Ni catalyst islands for single-walled carbon nanotube arrays

被引：0
作者：
Amanda E. Rider
Igor Levchenko
Kevin K. F. Chan
Eugene Tam
Kostya (Ken) Ostrikov
机构：
[1] The University of Sydney,Plasma Nanoscience, School of Physics
[2] CSIRO Materials Science and Engineering,undefined
来源：
Journal of Nanoparticle Research | 2008年 / 10卷
关键词：
Carbon nanotubes; Catalytic growth; Nanoislands; Hybrid numerical simulation; Self-assembly;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Many properties of single-walled carbon nanotube (SWCNT) arrays are determined by the size and surface coverage of the metal catalyst islands from which they are nucleated. Methods using thermal fragmentation of continuous metal films frequently fail to produce size-uniform islands. Hybrid numerical simulations are used to propose a new approach to controlled self-assembly of Ni islands of the required size and surface coverage using tailored gas-phase generated nanocluster fluxes and adjusted surface temperatures. It is shown that a maximum surface coverage of 0.359 by 0.96–1.02 nm Ni catalyst islands can be achieved at a low surface temperature of 500 K. Optimized growth of Ni catalyst islands can lead to fabrication of size-uniform SWCNT arrays, suitable for numerous nanoelectronic applications. This approach is deterministic and is applicable to a range of nanoassemblies where high surface coverage and island size uniformity are required.
引用
收藏
页码：249 / 254
页数：5
相关论文
共 133 条
  • [11] JAppenzeller Ph Avouris(2005)Nanostructures of various dimensionalities from plasma and neutral fluxes J Appl Phys 98 064304-4611
  • [12] Ding F(2007)Microscopic ion fluxes in plasma-aided nanofabrication of ordered carbon nanotip structures Appl Phys Lett 90 193110-241
  • [13] Larsson P(2001)Control of core-shell structure and elemental composition of binary quantum dots J Phys Chem B 105 11424-475
  • [14] Larsson JA(2002)Growth of single-walled carbon nanotubes from discrete catalytic nanoparticles of various sizes J Appl Phys 92 4605-511
  • [15] Ahuja R(2005)Atomic structure and defect densities in low dielectric constant carbon doped hydrogenated silicon oxide films, deposited by plasma-enhanced chemical vapor deposition IEEE Trans Plasma Sci 33 240-113
  • [16] Duan H(2006)In situ catalyzation of carbon nanostructures growth in low-frequency inductively coupled plasmas J Nanopart Res 8 465-189
  • [17] Rosén A(2005)Carbon nanotube synthesis from alcohols by a novel aerosol method Rev Mod Phys 77 489-136
  • [18] Bolton K(2007)Colloquium: Reactive plasmas as a versatile nanofabrication tool Comput Phys Commun 177 110-044308.7
  • [19] Hihara T(2008)Computational plasma nanoscience: Where plasma physics meets surface science J Nanopart Res 10 179-647
  • [20] Sumiyama K(2005)Electron field emitters based on multiwalled carbon nanotubes decorated with nanoscale metal clusters Phys Rev Lett 95 096103-97
12345678910