Electronically Configurable Molecular-Based Logic Gates-Reference-Cited by-同舟云学术

Electronically Configurable Molecular-Based Logic Gates

Published:1999-07-16 Issue:5426 Volume:285 Page:391-394
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Collier C. P.¹,Wong E. W.¹,Belohradský M.¹,Raymo F. M.¹,Stoddart J. F.¹,Kuekes P. J.²,Williams R. S.²,Heath J. R.¹

Affiliation:

1. Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095–1569, USA.

2. Hewlett-Packard Laboratories, Palo Alto, CA 94304–1392, USA.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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