Cellulose derivatives as excellent dispersants for single-wall carbon nanotubes as demonstrated by absorption and photoluminescence spectroscopy
N Minami, Y Kim, K Miyashita, S Kazaoui… - Applied Physics …, 2006 - pubs.aip.org
Sodium carboxymethylcellulose, an etherified derivative of cellulose, has been found to
realize stable aqueous dispersion of single-wall carbon nanotubes (SWNTs) that is twenty
times more concentrated than when a surfactant is used under the same condition. The
dispersion as well as thin films prepared from it exhibits well-resolved near-infrared
photoluminescence peaks originating from band-gap transitions in semiconducting SWNTs,
a sign of isolated individual tubes. Mechanical stretching of the film strongly aligns the tubes …
realize stable aqueous dispersion of single-wall carbon nanotubes (SWNTs) that is twenty
times more concentrated than when a surfactant is used under the same condition. The
dispersion as well as thin films prepared from it exhibits well-resolved near-infrared
photoluminescence peaks originating from band-gap transitions in semiconducting SWNTs,
a sign of isolated individual tubes. Mechanical stretching of the film strongly aligns the tubes …
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