Conductance of polymer nanowires fabricated by a combined electrodeposition and mechanical break junction method

H. X. He, C. Z. Li, N. J. Tao

Research output: Contribution to journalArticle

141 Scopus citations

Abstract

We electrochemically deposit conducting polymer to bridge two closely placed electrodes, and then form a polymer nanowire by stretching the polymer bridge with the electrodes. During stretching, the conductance increases initially as the polymer chains are aligned in parallel, and then decreases in a stepwise fashion, due to abrupt changes in the nanowire thickness. We study the current-voltage (I-V) characteristics of the nanowire as a function of its electrochemical potential in an analogous fashion to the control of the gate voltage in semiconductor devices. Depending on the potential, the I- V curves vary from ohmic to rectifying characteristics.

Original languageEnglish (US)
Pages (from-to)811-813
Number of pages3
JournalApplied Physics Letters
Volume78
Issue number6
DOIs
StatePublished - Feb 5 2001
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this