A molecular switch based on potential-induced changes of oxidation state

Fan Chen; Jin He; Colin Nuckolls; Tucker Roberts; Jennifer E. Klare; Stuart Lindsay

doi:10.1021/nl0478474

A molecular switch based on potential-induced changes of oxidation state

Fan Chen, Jin He, Colin Nuckolls, Tucker Roberts, Jennifer E. Klare, Stuart Lindsay

Research output: Contribution to journal › Article › peer-review

253 Scopus citations

Abstract

We have measured the conductance of a hepta-aniline oligomer attached to gold electrodes held under potential control in electrolyte. It increases fifteen-fold (to 5.3±0.4 nS) on oxidation from the leucoemeraldine form to the emeraldine salt. The single-molecule current-voltage characteristic, linear in toluene, displays negative differential resistance in an acidic electrolyte. The negative differential resistance is accounted for by modification of the local surface potential by the applied bias. These results connect electrochemical data directly to molecular electronic behavior in a two-terminal device.

Original language	English (US)
Pages (from-to)	503-506
Number of pages	4
Journal	Nano Letters
Volume	5
Issue number	3
DOIs	https://doi.org/10.1021/nl0478474
State	Published - Mar 2005

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1021/nl0478474

Cite this

@article{60d087b2b4084cd68dd11f704aa0b6d4,

title = "A molecular switch based on potential-induced changes of oxidation state",

abstract = "We have measured the conductance of a hepta-aniline oligomer attached to gold electrodes held under potential control in electrolyte. It increases fifteen-fold (to 5.3±0.4 nS) on oxidation from the leucoemeraldine form to the emeraldine salt. The single-molecule current-voltage characteristic, linear in toluene, displays negative differential resistance in an acidic electrolyte. The negative differential resistance is accounted for by modification of the local surface potential by the applied bias. These results connect electrochemical data directly to molecular electronic behavior in a two-terminal device.",

author = "Fan Chen and Jin He and Colin Nuckolls and Tucker Roberts and Klare, {Jennifer E.} and Stuart Lindsay",

year = "2005",

month = mar,

doi = "10.1021/nl0478474",

language = "English (US)",

volume = "5",

pages = "503--506",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "3",

}

TY - JOUR

T1 - A molecular switch based on potential-induced changes of oxidation state

AU - Chen, Fan

AU - He, Jin

AU - Nuckolls, Colin

AU - Roberts, Tucker

AU - Klare, Jennifer E.

AU - Lindsay, Stuart

PY - 2005/3

Y1 - 2005/3

N2 - We have measured the conductance of a hepta-aniline oligomer attached to gold electrodes held under potential control in electrolyte. It increases fifteen-fold (to 5.3±0.4 nS) on oxidation from the leucoemeraldine form to the emeraldine salt. The single-molecule current-voltage characteristic, linear in toluene, displays negative differential resistance in an acidic electrolyte. The negative differential resistance is accounted for by modification of the local surface potential by the applied bias. These results connect electrochemical data directly to molecular electronic behavior in a two-terminal device.

AB - We have measured the conductance of a hepta-aniline oligomer attached to gold electrodes held under potential control in electrolyte. It increases fifteen-fold (to 5.3±0.4 nS) on oxidation from the leucoemeraldine form to the emeraldine salt. The single-molecule current-voltage characteristic, linear in toluene, displays negative differential resistance in an acidic electrolyte. The negative differential resistance is accounted for by modification of the local surface potential by the applied bias. These results connect electrochemical data directly to molecular electronic behavior in a two-terminal device.

UR - http://www.scopus.com/inward/record.url?scp=16244380443&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=16244380443&partnerID=8YFLogxK

U2 - 10.1021/nl0478474

DO - 10.1021/nl0478474

M3 - Article

C2 - 15755102

AN - SCOPUS:16244380443

SN - 1530-6984

VL - 5

SP - 503

EP - 506

JO - Nano Letters

JF - Nano Letters

IS - 3

ER -

A molecular switch based on potential-induced changes of oxidation state

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this