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    Automated Enrichment of Single-Walled Carbon Nanotubes with Optical Studies of Enriched Samples

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    Author
    Canning, Griffin
    Date
    2013-05-13
    Advisor
    Weisman, R. Bruce
    Degree
    Master of Science
    Abstract
    The design and performance of an instrument is presented whose purpose is the extraction of samples highly enriched in one species of single-walled carbon nanotubes from density gradient ultracentrifugation. This instrument extracts high purity samples which are characterized by various optical studies. The samples are found to be enriched in just a few species of nanotubes, with the major limitation to enrichment being the separation, rather than extraction. The samples are then used in optical and microscopic studies which attempt to determine the first absorption coefficient (S1) of the (6,5) species of nanotube. Initial experiments give a value of 9.2 ± 2.6 cm2 C atom-1. Future work is proposed to improve upon the experiment in an attempt to reduce possible errors
    Keyword
    Single-walled carbon nanotubes; Carbon nanotubes; Absorption cross section
    Citation
    Canning, Griffin. "Automated Enrichment of Single-Walled Carbon Nanotubes with Optical Studies of Enriched Samples." (2013) Master’s Thesis, Rice University. http://hdl.handle.net/1911/71133.
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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892