Carbon Nanotube Sharpening Using an Induced Electrical Current

Carbon Nanotube Sharpening Using an Induced Electrical Current
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使用感应电流锐化碳纳米管

DOI:
10.1143/apex.3.025101
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发表时间:
2010
影响因子:
2.3
通讯作者:
Y. Nakayama
Y. Nakayama
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Hiroyuki Maruyama;T. Ishibashi;K. Hirahara;Y. Nakayama

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我们开发了一种控制良好的方法,通过感应电流来锐化孤立的碳纳米管 (CNT)。通过突然增加孤立的悬浮碳纳米管中的电流以达到升华温度来生产锥形碳纳米管尖端。由于一维热传导方程沿 CNT 轴的抛物线温度分布,CNT 中心区域的升华量大于电极附近区域的升华量。因此,在切割部分形成两个圆锥形尖端。通过与 Yuzvinsky 等人报道的不同锐化方法进行比较,定量研究了锐化过程机制。 [纳诺莱特。 6(2006)2718]。
We developed a well-controlled method for sharpening an isolated carbon nanotube (CNT) by inducing an electrical current. Conical CNT tips were produced by increasing the electrical current abruptly in isolated suspended CNTs to achieve sublimation temperature. Because of the parabolic temperature distribution along the CNT axis from the one-dimensional equation of heat conduction, the amount of sublimation from the CNT center region is greater than that from the region near the electrodes. Consequently, two conical tips were formed at the cutting section. The sharpening process mechanism was examined quantitatively through comparison with different sharpening methods reported by Yuzvinsky et al. [Nano Lett. 6 (2006) 2718].
用于纳米工具的碳纳米管纳米工程
DOI: --
发表时间: 2003
期刊:
影响因子: --
作者:
Y. Nakayama;S. Akita
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DOI: --
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期刊: Jpn.J.Appl.Phys 42
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