Nanoscopically flat open-ended single-walled carbon nanotube substrates for continued growth.

作者信息

Kim Myung Jong, Haroz Erik, Wang Yuhuang, Shan Hongwei, Nicholas Nolan, Kittrell Carter, Moore Valerie C, Jung Yeonwoong, Luzzi David, Wheeler Robert, BensonTolle Tia, Fan Hua, Da Sean, Hwang Wen-Fang, Wainerdi T J, Schmidt Howard, Hauge Robert H, Smalley Richard E

机构信息

Department of Physics & Astronomy, and Carbon Nanotechnology Laboratory, Rice University, 6100 Main Street, MS-100, Houston, Texas 77005, USA.

出版信息

Nano Lett. 2007 Jan;7(1):15-21. doi: 10.1021/nl061531+.

DOI:10.1021/nl061531+

PMID:17212433

Abstract

Continued growth is a way of growing nanotubes targeted to produce continuous and chirality-controlled single-walled carbon nanotube (SWNT) materials. This growth method strongly depends on efficient preparation of open-ended SWNT substrates. Nanoscopically flat open-ended SWNT substrates have been prepared by cutting the SWNT spun fiber with a focused ion beam cutting technique and followed by etching schemes for cleaning amorphous carbon and opening the ends of the SWNTs. The open ends were effectively characterized through selective etch back of open SWNT ends by carbon dioxide gas at 950 degrees C. High density continued growth was demonstrated from these nanoscopically flat open-ended substrates.

摘要