Article thumbnail

Macroscopic assemblies of magnetically aligned carbon nanotubes

By Michael John Casavant

Abstract

This work reports the successful production of macroscopic assemblies of aligned single walled carbon nanotubes (SWNTs) via filtration in a magnetic field of 25 Tesla. Such assemblies allow an unprecedented capability to characterize and manipulate aligned nanotubes. Surface areas in excess of 100 cm 2 and thicknesses in excess of seven microns thick were produced. A density within a factor of two of close packing was achieved. These assemblies exhibit anisotropy in reflection of polarized light, Raman resonance, electrical transport, and thermal transport. This provides a macroscopic window to exploring the properties of SWNTs and paves the way for many potential applications. This thesis also describes experiments using a combination of electrical and chemical methods, including DC electric fields, amine-derivatization of gold, and thiol-derivatization of SWNTs. These latter experiments preceded the filtration work and provided an essential basis for conceptualizing the successful filtration approach

Topics: Physical chemistry, Condensed matter physics
Year: 2000
OAI identifier: oai:scholarship.rice.edu:1911/17327
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://hdl.handle.net/1911/173... (external link)

  • To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.

    Suggested articles