A simple, efficient suspension of individual multi-walled carbon nanotubes based on a deep trench electrode

Chang Soo Han, Jong Hong Lee, Hee Won Seo, Jin Won Song, Ji Eun Kim, Muncheol Won

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We report the suspension of individual multi-walled Carbon nanotube (MWNT) from the bottom substrate using deep trench electrodes that were fabricated using optical lithography. During drying of the solution in dielectrophoretic assembly, the capillary force pulls the MWNT toward the bottom substrate, and it then remains as a deformed structure adhering to the bottom substrate after the solution has dried out. Small-diameter MWNTs cannot be suspended using thin electrodes with large gaps, but can be suspended using thicker electrodes. We present the statistical experimental results for successful suspension, as well as the feasible conditions for MWNT suspension based on a theoretical approach.

Original languageEnglish
Pages (from-to)3770-3774
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume6
Issue number12
DOIs
Publication statusPublished - 2006 Dec 1
Externally publishedYes

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Keywords

  • Capillary force
  • Carbon nanotubes
  • Dielectrophoresis
  • Suspension

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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