Plumbing carbon nanotubes
Plumbing carbon nanotubes
复制标题
DOI：
10.1038/nnano.2007.406
复制
发表时间：
2008-01-01
影响因子：
38.3
通讯作者：
Iijima, Sumio
中科院分区：
文献类型：
--
作者：
Jin, Chuanhong;Suenaga, Kazu;Iijima, Sumio
自发现以来，将碳纳米管像水管一样连接在一起的可能性一直是这些中空纳米结构的有趣前景。碳纳米管以可控的方式串联为自下而上的纳米管结构工程提供了一种很有前途的方法从简单地增加它们的纵横比到制造集成的碳纳米管器件。然而，迄今为止，很少有关于两种不同碳纳米管连接的报道（1-3）。在这里，我们证明了焦耳加热过程，以及相关的电迁移效应，可以用来连接两个碳纳米管，具有相同（或相似）的直径。更一般地说，在钨金属颗粒的帮助下，这种技术可以用来无缝连接任何两个碳纳米管-无论它们的直径如何-以形成新的纳米管结构。
Since their discovery, the possibility of connecting carbon nanotubes together like water pipes has been an intriguing prospect for these hollow nanostructures. The serial joining of carbon nanotubes in a controlled manner offers a promising approach for the bottom-up engineering of nanotube structures-from simply increasing their aspect ratio to making integrated carbon nanotube devices. To date, however, there have been few reports of the joining of two different carbon nanotubes(1-3). Here we demonstrate that a Joule heating process, and associated electro-migration effects, can be used to connect two carbon nanotubes that have the same (or similar) diameters. More generally, with the assistance of a tungsten metal particle, this technique can be used to seamlessly join any two carbon nanotubes-regardless of their diameters-to form new nanotube structures.