Debundling of single-walled nanotubes by dilution: Observation of large populations of individual nanotubes in amide solvent dispersions

Authors :: Giordani, Silvia
Bergin, Shane D.
Nicolosi, Valeria
Lebedkin, Sergei
Kappes, Manfred M.
Blau, Werner J.
Coleman, Jonathan N.
Source :: Journal of Physical Chemistry B. August 17, 2006, Vol. 110 Issue 32, 15708-15718
Publication Year :: 2006
Abstract: Atomic force microscopy (AFM), ultraviolet (UV)-vis-near infrared (NIR) absorption, NIR photoluminescence and Raman spectroscopy are used to demonstrate that single-walled nanotubes can be debundled simply by reducing the nanotube concentration in N-methyl-2-pyrrolidone (NMP) dispersions. The findings reveal that the average bundle diameter decreases with decreasing concentration of 8 x [10.sup.-3] mg/mL.

Subjects :: Atomic force microscopy -- Observations
Infrared spectroscopy -- Analysis
Nanotubes -- Structure
Nanotubes -- Optical properties
Pyrrole -- Structure
Pyrrole -- Chemical properties
Pyrrole -- Optical properties
Chemicals, plastics and rubber industries

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