Yu Decai, Liu Feng
Department of Materials Science and Engineering, University of Utah, Salt Lake City, Utah 84112, USA.
Nano Lett. 2007 Oct;7(10):3046-50. doi: 10.1021/nl071511n. Epub 2007 Sep 11.
We demonstrate a new method (U.S. Patent Appl., serial no. 60/908039) for synthesizing carbon nanotubes (CNTs), using first-principles and classical molecular dynamics simulations. The single-walled nanotubes (SWNTs) are formed by folding graphene nanoribbons patterned on graphite films through adsorption of atoms of varying coverage, which introduces an external stress to drive the folding process. The diameter and chirality of SWNTs can be a priori controlled by patterning graphene nanoribbons with predefined width and direction so that the postsynthesis sorting process is eliminated. Our method allows potentially mass production of identical tubes and easy integration into device structures on a substrate.
我们展示了一种合成碳纳米管（CNT）的新方法（美国专利申请，序列号60/908039），该方法使用第一性原理和经典分子动力学模拟。单壁纳米管（SWNT）是通过在石墨薄膜上图案化的石墨烯纳米带吸附不同覆盖率的原子而折叠形成的，这引入了外部应力来驱动折叠过程。SWNT的直径和手性可以通过以预定义的宽度和方向图案化石墨烯纳米带来先验控制，从而消除合成后的分类过程。我们的方法有可能大规模生产相同的碳纳米管，并易于集成到衬底上的器件结构中。
