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Issue 3, 2003
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Diameter selective doping of single wall carbon nanotubes

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Single wall carbon nanotubes (SWCNTs) synthesized by the recently developed HiPco® method differ from those obtained by other techniques because their diameter distribution is broader and is centered at a smaller value. Therefore, HiPco® samples contain an unusual wide selection of different nanotubes. Combining this feature with different dopant molecule sizes makes it possible to study a special, diameter selective intercalation phenomenon. Here we present a comparative resonant Raman spectroscopic study on the n-type (K) and p-type (FeCl3) doping of a HiPco® and a laser ablation grown SWCNT sample. Diameter selectivity is observed in the former but not in the latter case. We suggest that the solvability of dopands is diameter dependent with a minimum in the range d = 0.9–1.2 nm.

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Publication details

The article was received on 20 Nov 2002, accepted on 05 Dec 2002 and first published on 17 Dec 2002

Article type: Paper
DOI: 10.1039/B211509C
Citation: Phys. Chem. Chem. Phys., 2003,5, 582-587
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    Diameter selective doping of single wall carbon nanotubes

    A. Kukovecz, T. Pichler, R. Pfeiffer, C. Kramberger and H. Kuzmany, Phys. Chem. Chem. Phys., 2003, 5, 582
    DOI: 10.1039/B211509C

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