title: Highly dense and perfectly aligned single-walled carbon nanotubes fabricated by diamond wire drawing dies.
abstract: We have developed a low-cost and effective method to align single-walled carbon nanotubes (SWNTs) using a series of diamond wire drawing dies. The obtained SWNTs are highly dense and perfectly aligned. X-ray diffraction (XRD) indicates that the highly dense and perfectly aligned SWNTs (HDPA-SWNTs) form a two-dimensional triangular lattice with a lattice constant of 19.62 A. We observe a sharp (002) reflection in the XRD pattern, which should be ascribed to an intertube spacing 3.39 A of adjacent SWNTs. Raman spectra reveal that the radical breath mode (RBM) of SWNTs with larger diameter in the HDPA-SWNTs is suppressed compared with that of as-grown SWNTs. The HDPA-SWNTs have a large density, approximately 1.09 g/cm 3, and a low resistivity, approximately 2 m Omega cm, at room temperature, as well as a large response to light illumination.
authors.affiliation: National Center for Nanoscience and Technology, Beijing 100080, China.
authors.forename: Guangtong
authors.initials: G
authors.lastname: Liu
authors.forename: Yuanchun
authors.initials: Y
authors.lastname: Zhao
authors.forename: Ke
authors.initials: K
authors.lastname: Deng
authors.forename: Zheng
authors.initials: Z
authors.lastname: Liu
authors.forename: Weiguo
authors.initials: W
authors.lastname: Chu
authors.forename: Jingran
authors.initials: J
authors.lastname: Chen
authors.forename: Yanlian
authors.initials: Y
authors.lastname: Yang
authors.forename: Kaihong
authors.initials: K
authors.lastname: Zheng
authors.forename: Haibo
authors.initials: H
authors.lastname: Huang
authors.forename: Wenjun
authors.initials: W
authors.lastname: Ma
authors.forename: Li
authors.initials: L
authors.lastname: Song
authors.forename: Haifang
authors.initials: H
authors.lastname: Yang
authors.forename: Changzhi
authors.initials: C
authors.lastname: Gu
authors.forename: Guanghui
authors.initials: G
authors.lastname: Rao
authors.forename: Chen
authors.initials: C
authors.lastname: Wang
authors.forename: Sishen
authors.initials: S
authors.lastname: Xie
authors.forename: Lianfeng
authors.initials: L
authors.lastname: Sun