Electrical and optical properties of carbon nanotube/polypyrrole addressable intra-connects

Seon Woo Lee, Haim Grebel, Avi Kornblit, Daniel Lopez

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Carbon nanotube (CNT) intra-connects (bridges spanning across in-plane electrodes) were electroplated with polypyrrole (PPy), an electrically conductive polymer (ECP). Sharp metal electrodes initiated the CNT growth at pre-selected locations. The CNT bridge was then used as an electrode for conductive polymer electro-deposition. The samples were characterized by Raman spectroscopy and current-voltage measurements. We found that current-gate voltage (Ids-Vgs) characteristics changed dramatically for the electroplated structures when the polymer exceeded a threshold thickness, in the order of 80 nm. In addition, the CNT/PPy structures exhibited large sensitivity to UV radiation: the current substantially reduced upon irradiation with moderate UV intensity values.

Original languageEnglish (US)
Pages (from-to)462-466
Number of pages5
JournalSynthetic Metals
Issue number5-6
StatePublished - Mar 2009

All Science Journal Classification (ASJC) codes

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


  • Carbon nanotube intra-connects
  • Electrochemical polymerization
  • Polypyrrole


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