Diameter selective doping of single wall carbon nanotubes

Akos Kukovecz, Thomas Pichler, Rudolf Pfeiffer, Christian Kramberger, Hans Kuzmany

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)582-587
Number of pages6
JournalPhysical Chemistry Chemical Physics
Volume5
Issue number3
DOIs
Publication statusPublished - Jan 1 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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