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Published August 31, 2009 | Version Published
Journal Article Open

Room temperature negative differential resistance of a monolayer molecular rotor device

Creators

  • 1. ROR icon University of California, Los Angeles
  • 2. ROR icon California NanoSystems Institute
  • 3. ROR icon California Institute of Technology

Abstract

An electrically driven molecular rotor device comprised of a monolayer of redox-active ligated copper compounds sandwiched between a gold electrode and a highly doped P+Si substrate was fabricated. Current-voltage spectroscopy revealed a temperature-dependent negative differential resistance (NDR) associated with the device. Time-dependent density functional theory suggests the source of the observed NDR to be redox-induced ligand rotation around the copper metal center, an explanation consistent with the proposed energy diagram of the device. An observed temperature dependence of the NDR behavior further supports this hypothesis.

Additional Information

©2009 American Institute of Physics. Received 17 June 2009; accepted 12 August 2009; published 2 September 2009. The authors would like to thank the FCRP-FENA center for support.

Attached Files

Published - Xue2009p5944Appl_Phys_Lett.pdf

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Additional details

Identifiers

Eprint ID
16034
Resolver ID
CaltechAUTHORS:20090923-143137602

Funding

Research Corporation
FCRP-FENA center

Dates

Created
2009-10-02
Created from EPrint's datestamp field
Updated
2021-11-08
Created from EPrint's last_modified field

Caltech Custom Metadata

Other Numbering System Name
WAG
Other Numbering System Identifier
0820