Fagan, J.
, Landi, B.
, Mandelbaum, I.
, Bajpai, V.
, Bauer, B.
, Migler, K.
, Simpson, J.
, Hight, A.
, Raffaelle, R.
and Hobbie, E.
(2006),
Comparative Measures of Single Wall Carbon Nanotube Dispersion, Journal of Physical Chemistry, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852660
(Accessed October 15, 2024)
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Comparative Measures of Single Wall Carbon Nanotube Dispersion
Published
Author(s)
, Brian Landi, , , , , , , Ryan Raffaelle,
Abstract
Model polymer composites of DNA wrapped single-wall carbon nanotubes (SWNTs) dispersed in polyacrylic acid are used for a systematic comparison of the different metrologies currently used to evaluate SWNT dispersion. Application of a pH-controlled variation in dispersion quality has allowed for the evaluation of each method in terms of its sensitivity to SWNT bundling and clustering in the limit of nanodispersion. Small-angle neutron scattering (SANS) was found to provide the most direct measure of dispersion, followed by near-infrared fluorescence spectroscopy, optical absorption spectroscopy, and resonant Raman scattering. Our results represent the first systematic comparison of currently accepted metrics for assessing SWNT dispersion and provide a calibration of the various techniques.Citation
Journal of Physical Chemistry
Volume
110
Pub Type
Journals
Download Paper
Keywords
composite, dispersion, nanotube, neutron scattering, polyarylic acid, polymer
Citation
Issues
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Created September 14, 2006, Updated February 19, 2017