Dielectrophoretic separation of metallic arc-discharge single-walled carbon nanotubes in a microfluidic channel

  • Hosung Kang
  • , Beibei Wang
  • , Seunghyun Hong
  • , Jung Jun Bae
  • , Duckjong Kim
  • , Chang Soo Han
  • , Young Hee Lee
  • , Seunghyun Baik*
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    12 Citations (Scopus)

    Abstract

    Electronic type-dependent separation of single-walled carbon nanotubes (SWNTs), preserving pristine crystallinity and length, is of great interest since mixtures of semiconducting and metallic species are produced by current synthesis methods. Here we separated highly-enriched metallic SWNTs, synthesized by the arc-discharge method, by dielectrophoresis in a microfluidic channel. The design of microelectrodes was optimized to prevent the nanotube deposition on the electrodes for prolonged operation of the microfluidic chip. The average length of separated highly crystalline metallic SWNTs was relatively long (2-2.4 μm).

    Original languageEnglish
    Pages (from-to)23-28
    Number of pages6
    JournalSynthetic Metals
    Volume184
    DOIs
    Publication statusPublished - 2013

    Keywords

    • Arc-discharge generated single-walled carbon nanotubes
    • Dielectrophoretic separation
    • Microfluidic channel

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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