Progress towards monodisperse single-walled carbon nanotubes

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Abstract

The defining characteristic of a nanomaterial is that its properties vary as a function of its size. This size dependence can be clearly observed in single-walled carbon nanotubes, where changes in structure at the atomic scale can modify the electronic and optical properties of these materials in a discontinuous manner (for example, changing metallic nanotubes to semiconducting nanotubes and vice versa). However, as most practical technologies require predictable and uniform performance, researchers have been aggressively seeking strategies for preparing samples of single-walled carbon nanotubes with well-defined diameters, lengths, chiralities and electronic properties (that is, uniformly metallic or uniformly semiconducting). This review highlights post-synthetic approaches for sorting single-walled carbon nanotubes - including selective chemistry, electrical breakdown, dielectrophoresis, chromatography and ultracentrifugation - and progress towards selective growth of monodisperse samples.

Original languageEnglish
Pages (from-to)387-394
Number of pages8
JournalNature Nanotechnology
Volume3
Issue number7
DOIs
Publication statusPublished - Jul 2008

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Single-walled carbon nanotubes (SWCN)
carbon nanotubes
Electronic properties
Nanotubes
nanotubes
Chirality
chromatography
Chromatography
classifying
Electrophoresis
electrical faults
chirality
Sorting
electronics
Nanostructured materials
Optical properties
chemistry
optical properties

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering
  • Materials Science(all)
  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Progress towards monodisperse single-walled carbon nanotubes. / Hersam, Mark C.

In: Nature Nanotechnology, Vol. 3, No. 7, 07.2008, p. 387-394.

Research output: Contribution to journalArticle

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