This work reports the successful production of neat macroscopic membranes of aligned single-walled carbon nanotubes (SWNTs) via filtration in intense magnetic fields of 25 Tesla and 7 Tesla. These membranes comprise a novel material that allows an unprecedented capability to characterize and manipulate aligned SWNTs, providing access to the more remarkable properties of SWNTs. Surface areas in excess of 100 cm 2 and thickness in excess of seven microns were produced. A density within a factor of two of close packing was achieved. These assemblies exhibit anisotropy in Raman resonance, electrical transport, thermal transport, and reflection of polarized light. These samples provide a macroscopic window to exploring the properties of SWNTs and pave the way for many potential applications. The successful extension of this process to 7 Tesla provides a more pragmatic path towards aligned assemblies of carbon nanotubes. Variations in the properties of the materials made under different magnetic field intensities were observed.*
*This dissertation includes a CD that is compound (contains both a paper copy and a CD as part of the dissertation). The CD requires the following application: Notepad.
| Identifer | oai:union.ndltd.org:RICE/oai:scholarship.rice.edu:1911/18163 |
| Date | January 2002 |
| Creators | Casavant, Michael John |
| Contributors | Smalley, Richard E. |
| Source Sets | Rice University |
| Language | English |
| Detected Language | English |
| Type | Thesis, Text |
| Format | 113 p., application/pdf |
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