单壁碳纳米管的持续生长。

Continued growth of single-walled carbon nanotubes.

作者信息

Wang Yuhuang, Kim Myung Jong, Shan Hongwei, Kittrell Carter, Fan Hua, Ericson Lars M, Hwang Wen-Fang, Arepalli Sivaram, Hauge Robert H, Smalley Richard E

机构信息

Center for Nanoscale Science and Technology, Carbon Nanotechnology Laboratory, Department of Chemistry, Rice University, MS-100, P.O. Box 1892, Houston, Texas 77251-1892, USA.

出版信息

Nano Lett. 2005 Jun;5(6):997-1002. doi: 10.1021/nl047851f.

DOI:10.1021/nl047851f

PMID:15943432

Abstract

We demonstrate the continued growth of single-walled carbon nanotubes (SWNTs) from ordered arrays of open-ended SWNTs in a way analogous to epitaxy. Nanometer-sized metal catalysts were docked to the SWNT open ends and subsequently activated to restart growth. SWNTs thus grown inherit the diameters and chirality from the seeded SWNTs, as indicated by the closely matched frequencies of Raman radial breathing modes before and after the growth.

摘要

我们展示了单壁碳纳米管（SWNTs）从开口端单壁碳纳米管的有序阵列中持续生长，其方式类似于外延生长。纳米尺寸的金属催化剂连接到单壁碳纳米管的开口端，随后被激活以重新开始生长。如此生长的单壁碳纳米管继承了种子单壁碳纳米管的直径和手性，生长前后拉曼径向呼吸模式频率的紧密匹配表明了这一点。