Home > Research > Publications & Outputs > A dramatic effect of water on single molecule c...
View graph of relations

A dramatic effect of water on single molecule conductance

Research output: Contribution to Journal/MagazineConference articlepeer-review

Published

Standard

A dramatic effect of water on single molecule conductance. / Leary, Edmund; Höbenreich, Horst; Higgins, Simon J. et al.
In: Materials Research Society Symposium Proceedings, Vol. 1154, 01.12.2009, p. 3-8.

Research output: Contribution to Journal/MagazineConference articlepeer-review

Harvard

Leary, E, Höbenreich, H, Higgins, SJ, Van Zalinge, H, Haiss, W, Nichols, RJ, Finch, C, Grace, I & Lambert, CJ 2009, 'A dramatic effect of water on single molecule conductance', Materials Research Society Symposium Proceedings, vol. 1154, pp. 3-8. https://doi.org/10.1557/PROC-1154-B04-02

APA

Leary, E., Höbenreich, H., Higgins, S. J., Van Zalinge, H., Haiss, W., Nichols, R. J., Finch, C., Grace, I., & Lambert, C. J. (2009). A dramatic effect of water on single molecule conductance. Materials Research Society Symposium Proceedings, 1154, 3-8. https://doi.org/10.1557/PROC-1154-B04-02

Vancouver

Leary E, Höbenreich H, Higgins SJ, Van Zalinge H, Haiss W, Nichols RJ et al. A dramatic effect of water on single molecule conductance. Materials Research Society Symposium Proceedings. 2009 Dec 1;1154:3-8. doi: 10.1557/PROC-1154-B04-02

Author

Leary, Edmund ; Höbenreich, Horst ; Higgins, Simon J. et al. / A dramatic effect of water on single molecule conductance. In: Materials Research Society Symposium Proceedings. 2009 ; Vol. 1154. pp. 3-8.

Bibtex

@article{de7f159c76164ae4ad2cce80b51d8ea9,
title = "A dramatic effect of water on single molecule conductance",
abstract = "Simple alkanedithiols exhibit the same molecular conductance whether measured in air, under vacuum or under liquids of different polarity. Here, we show that the presence of water 'gates' the conductance of a family of oligothiophene-containing molecular wires, and that the longer the oligothiophene, the larger is the effect; for the longest example studied, the molecular conductance is over two orders of magnitude larger in the presence of water, an unprecedented result suggesting that ambient water is a crucial factor to be taken into account when measuring single molecule conductances (SMC), or in the design of future molecular electronic devices. Theoretical investigation of electron transport through the molecules, using the ab initio non-equilibrium Green's function (SMEAGOL) method , shows that water molecules interact with the thiophene rings, shifting the transport resonances enough to increase greatly the SMC of the longer, more conjugated examples.",
author = "Edmund Leary and Horst H{\"o}benreich and Higgins, {Simon J.} and {Van Zalinge}, Harm and Wolfgang Haiss and Nichols, {Richard J.} and Christopher Finch and Iain Grace and Lambert, {Colin J.}",
year = "2009",
month = dec,
day = "1",
doi = "10.1557/PROC-1154-B04-02",
language = "English",
volume = "1154",
pages = "3--8",
journal = "Materials Research Society Symposium Proceedings",
issn = "0272-9172",
publisher = "Materials Research Society",
note = "2009 MRS Spring Meeting: MRS Symposium B on Concepts in Molecular and Organic Electronics ; Conference date: 13-04-2009 Through 17-04-2009",

}

RIS

TY - JOUR

T1 - A dramatic effect of water on single molecule conductance

AU - Leary, Edmund

AU - Höbenreich, Horst

AU - Higgins, Simon J.

AU - Van Zalinge, Harm

AU - Haiss, Wolfgang

AU - Nichols, Richard J.

AU - Finch, Christopher

AU - Grace, Iain

AU - Lambert, Colin J.

PY - 2009/12/1

Y1 - 2009/12/1

N2 - Simple alkanedithiols exhibit the same molecular conductance whether measured in air, under vacuum or under liquids of different polarity. Here, we show that the presence of water 'gates' the conductance of a family of oligothiophene-containing molecular wires, and that the longer the oligothiophene, the larger is the effect; for the longest example studied, the molecular conductance is over two orders of magnitude larger in the presence of water, an unprecedented result suggesting that ambient water is a crucial factor to be taken into account when measuring single molecule conductances (SMC), or in the design of future molecular electronic devices. Theoretical investigation of electron transport through the molecules, using the ab initio non-equilibrium Green's function (SMEAGOL) method , shows that water molecules interact with the thiophene rings, shifting the transport resonances enough to increase greatly the SMC of the longer, more conjugated examples.

AB - Simple alkanedithiols exhibit the same molecular conductance whether measured in air, under vacuum or under liquids of different polarity. Here, we show that the presence of water 'gates' the conductance of a family of oligothiophene-containing molecular wires, and that the longer the oligothiophene, the larger is the effect; for the longest example studied, the molecular conductance is over two orders of magnitude larger in the presence of water, an unprecedented result suggesting that ambient water is a crucial factor to be taken into account when measuring single molecule conductances (SMC), or in the design of future molecular electronic devices. Theoretical investigation of electron transport through the molecules, using the ab initio non-equilibrium Green's function (SMEAGOL) method , shows that water molecules interact with the thiophene rings, shifting the transport resonances enough to increase greatly the SMC of the longer, more conjugated examples.

U2 - 10.1557/PROC-1154-B04-02

DO - 10.1557/PROC-1154-B04-02

M3 - Conference article

AN - SCOPUS:72849131797

VL - 1154

SP - 3

EP - 8

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

SN - 0272-9172

T2 - 2009 MRS Spring Meeting: MRS Symposium B on Concepts in Molecular and Organic Electronics

Y2 - 13 April 2009 through 17 April 2009

ER -