Coulomb Explosion: A Novel Approach to Separate Single-Walled Carbon Nanotubes from Their Bundle

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• 作者：Guangtong Liu ; Yuanchun Zhao ; Kaihong Zheng ; Zheng Liu ; Wenjun Ma ; Yan Ren ; Sishen Xie ; Lianfeng Sun
• 刊名：Nano Letters
• 出版年：2009
• 出版时间：January 14, 2009
• 年：2009
• 卷：9
• 期：1
• 页码：239-244
• 全文大小：275K
• 年卷期：v.9,no.1(January 14, 2009)
• ISSN：1530-6992

文摘

A novel approach based on Coulomb explosion has been developed to separate single-walled carbon nanotubes (SWNTs) from their bundle. With this technique, we can readily separate a bundle of SWNTs into smaller bundles with uniform diameter as well as some individual SWNTs. The separated SWNTs have a typical length of several microns and form a nanotree at one end of the original bundle. More importantly, this separating procedure involves no surfactant and includes only one-step physical process. The separation method offers great conveniences for the subsequent individual SWNT or multiterminal SWNTs device fabrication and their physical properties studies.