Fabrication of carbon nanotubes by electrical breakdown of carbon-coated Au nanowires
Fabrication of carbon nanotubes by electrical breakdown of carbon-coated Au nanowires
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DOI：
10.1016/j.matlet.2010.04.035
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发表时间：
2010-07
影响因子：
3
通讯作者：
K. Briston;Yong Peng;A. Cullis;B. Inkson
中科院分区：
文献类型：
--
作者：
K. Briston;Yong Peng;A. Cullis;B. Inkson
碳纳米管是通过碳包覆的Au纳米线的电诱导击穿而产生的。在高电流密度下，纳米线中的Au向阳极和阴极两者迁移，导致独立的碳纳米管和73%的电阻降低。碳纳米管的电阻率<8×10−5 μ m，可以科普>1.8× 1011 A/m2的电流密度，表明碳的结构从无定形转变为石墨化。以这种方式生产的碳纳米管的尺寸具有由母体金属纳米线模板控制的内径。
A carbon nanotube has been generated by the electrically-induced breakdown of a carbon-coated Au nanowire. Under high current density the Au in the nanowire migrates towards both the anode and cathode resulting in a free-standing carbon nanotube and a 73% reduction in resistance. The resistivity of the carbon nanotube was <8×10−5Ωm and it could cope with a current density >1.8×1011A/m2, indicating a structural change from amorphous to graphitic carbon. The dimensions of carbon nanotubes produced in this way have an internal diameter controlled by the parent metal nanowire template.