Is it possible to obatain single strand of carbon nanotube without bundles with solvents ? I have tried with isopronol, but I usually get bundles and agglomerated CNTs.
Aqueous surfactants-
"Investigation of Sodium Dodecyl Benzene Sulphonate Assisted Dispersion and Debundling of Single Wall Carbon Nanotubes." Priya Baskar Rao, Hugh J. Byrne, Journal of Physical Chemistry C, 12, 332-337 (2008) .
Organic solvents:
"Effect of solvent solubility parameters on the dispersion of Single-walled carbon nanotubes" Qiaohuan Cheng, Sourabhi Debnath, Elizabeth Gregan, Hugh J. Byrne, J. Phys. Chem. C, 112, 20154-20158 (2008)
Hello,
Please see the paper of "Spin- and Spray-Deposited Single-Walled Carbon-Nanotube Electrodes for Organic Solar Cells July 2010 · Advanced Functional Materials 20(14) DOI · 10.1002/adfm.200902369".
Besides DI water with different surfactants, 1,2-Dichloroethane (DCE) solvent can also be used. The concentration must be as low as less than 0.1mg/ml.
Hope it helps.
In the case of aqueous surfactants and all organic solvents, there is a critical debundling or exfoliation concentration below which the tubes are found largely dispersed as individual tubes. This concentration varies per surfactant/solvent. For details see the previous publications I posted.
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