Quantitative evaluation of the octadecylamine-assisted bulk separation of semiconducting and metallic single-wall carbon nanotubes by resonance Raman spectroscopy

The selective stabilization of octadecylamine (ODA) on semiconducting (S) single-wall carbon nanotubes (SWNTs) has been reported to provide a means for the bulk separation of S from metallic (M) SWNTs. Utilizing resonance Raman spectroscopy and, in particular, the relative changes in the integrated...

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Bibliographic Details
Published in:Applied physics letters 2004-08, Vol.85 (6), p.1006-1008
Main Authors: Samsonidze, Ge. G., Chou, S. G., Santos, A. P., Brar, V. W., Dresselhaus, G., Dresselhaus, M. S., Selbst, A., Swan, A. K., Ünlü, M. S., Goldberg, B. B., Chattopadhyay, D., Kim, S. N., Papadimitrakopoulos, F.
Format: Article
Language:English
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Summary:The selective stabilization of octadecylamine (ODA) on semiconducting (S) single-wall carbon nanotubes (SWNTs) has been reported to provide a means for the bulk separation of S from metallic (M) SWNTs. Utilizing resonance Raman spectroscopy and, in particular, the relative changes in the integrated intensities of the radial-breathing mode region, a generic method has been developed to provide quantitative evaluation of the separation efficiency between M and S SWNTs along with diameter separation. The ODA-assisted separation is shown to provide S enrichment by a factor of 5 for SWNTs prepared by high pressure CO decomposition and greater S enrichment for SWNTs with diameters below 1nm.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1777814