Electronically configurable molecular-based logic gates

C. P. Collier, E. W. Wong, M. Belohradský, F. M. Raymo, J. F. Stoddart, P. J. Kuekes, R. S. Williams, J. R. Heath

Research output: Contribution to journalArticle

1364 Scopus citations

Abstract

Logic gates were fabricated from an array of configurable switches, each consisting of a monolayer of redox-active rotaxanes sandwiched between metal electrodes. The switches were read by monitoring current flow at reducing voltages. In the 'closed' state, current flow was dominated by resonant tunneling through the electronic states of the molecules. The switches were irreversibly opened by applying an oxidizing voltage across the device. Several devices were configured together to produce AND and OR logic gates. The high and low current levels of those gates were separated by factors of 15 and 30, respectively, which is a significant enhancement over that expected for wired-logic gates.

Original languageEnglish (US)
Pages (from-to)391-394
Number of pages4
JournalScience
Volume285
Issue number5426
DOIs
StatePublished - Jul 16 1999
Externally publishedYes

ASJC Scopus subject areas

  • General

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    Collier, C. P., Wong, E. W., Belohradský, M., Raymo, F. M., Stoddart, J. F., Kuekes, P. J., Williams, R. S., & Heath, J. R. (1999). Electronically configurable molecular-based logic gates. Science, 285(5426), 391-394. https://doi.org/10.1126/science.285.5426.391