Are single molecular wires conducting?

L. A. Bumm, J. J. Arnold, M. T. Cygan, T. D. Dunbar, T. P. Burgin, L. Jones, D. L. Allara, J. M. Tour, P. S. Weiss

Research output: Contribution to journalArticlepeer-review

1168 Scopus citations

Abstract

Molecular wire candidates inserted into "nonconducting" n-dodecanethiol self-assembled monolayers on Au{111} were probed by scanning tunneling microscopy (STM) and microwave frequency alternating current STM at high tunnel junction impedance (100 gigohms) to assess their electrical properties. The inserted conjugated molecules, which were 4,4′-di(phenylene-ethynylene)benzenethiolate derivatives, formed single molecular wires that extended from the Au{111} substrate to about 7 angstroms above and had very high conductivity as compared with that of the alkanethiolate.

Original languageEnglish (US)
Pages (from-to)1705-1707
Number of pages3
JournalScience
Volume271
Issue number5256
DOIs
StatePublished - Mar 22 1996

All Science Journal Classification (ASJC) codes

  • General

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