Characterization and air pressure sensing of doubly clamped multi-walled carbon nanotubes

Jin Won Song, Jong Hong Lee, Hee Won Seo, Chang Soo Han

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report the fabrication and characterization of doubly clamped multi-walled carbon nanotubes (MWNTs). The devices were assembled by applying an electric field while the MWNTs were firmly clamped and suspended at both ends of a thick metal trench electrode in solution. The contacts were further processed using a focused ion beam. Final dimensions ranged from 100 to 150 nm in diameter and 1.5-4 μm in length. The fabricated devices were characterized by I-V curves, impedance measurements, and their mechanical deformation under a high pressure airflow. In the latter case, the resistance of a MWNT device varied linearly with the magnitude of the air pressure. These characteristics strongly suggest potential applications in fields such as nanoelectronics and sensors.

Original languageEnglish
Article number015201
JournalNanotechnology
Volume19
Issue number1
DOIs
Publication statusPublished - 2008 Jan 9

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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