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Structural versus electrical functionalization of oligo(phenylene ethynylene) diamine molecular junctions

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Structural versus electrical functionalization of oligo(phenylene ethynylene) diamine molecular junctions. / Teresa Gonzalez, M.; Zhao, Xiaotao; Manrique, David Zsolt et al.
In: The Journal of Physical Chemistry C, Vol. 118, No. 37, 18.09.2014, p. 21655-21662.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Teresa Gonzalez, M, Zhao, X, Manrique, DZ, Miguel, D, Leary, E, Gulcur, M, Batsanov, AS, Rubio-Bollinger, G, Lambert, CJ, Bryce, MR & Agrait, N 2014, 'Structural versus electrical functionalization of oligo(phenylene ethynylene) diamine molecular junctions', The Journal of Physical Chemistry C, vol. 118, no. 37, pp. 21655-21662. https://doi.org/10.1021/jp506078a

APA

Teresa Gonzalez, M., Zhao, X., Manrique, D. Z., Miguel, D., Leary, E., Gulcur, M., Batsanov, A. S., Rubio-Bollinger, G., Lambert, C. J., Bryce, M. R., & Agrait, N. (2014). Structural versus electrical functionalization of oligo(phenylene ethynylene) diamine molecular junctions. The Journal of Physical Chemistry C, 118(37), 21655-21662. https://doi.org/10.1021/jp506078a

Vancouver

Teresa Gonzalez M, Zhao X, Manrique DZ, Miguel D, Leary E, Gulcur M et al. Structural versus electrical functionalization of oligo(phenylene ethynylene) diamine molecular junctions. The Journal of Physical Chemistry C. 2014 Sept 18;118(37):21655-21662. doi: 10.1021/jp506078a

Author

Teresa Gonzalez, M. ; Zhao, Xiaotao ; Manrique, David Zsolt et al. / Structural versus electrical functionalization of oligo(phenylene ethynylene) diamine molecular junctions. In: The Journal of Physical Chemistry C. 2014 ; Vol. 118, No. 37. pp. 21655-21662.

Bibtex

@article{e71581e678d6464f90c248b0cd899607,
title = "Structural versus electrical functionalization of oligo(phenylene ethynylene) diamine molecular junctions",
abstract = "We explore both experimentally and theoretically the conductance and packing of molecular junctions based on oligo(phenyleneethynylene) (OPE) diamine wires, when a series of functional groups are incorporated into the wires. Using the scanning tunnelling microscopy break-junction (STM BJ) technique, we study these compounds in two environments (air and 1,2,4-trichlorobenzene) and explore different starting molecular concentrations. We show that the electrical conductance of the molecular junctions exhibits variations among different compounds, which are significant at standard concentrations but become unimportant when working at a low enough concentration. This shows that the main effect of the functional groups is to affect the packing of the molecular wires, rather than to modify their electrical properties. Our theoretical calculations consistently predict no significant changes in the conductance of the wires due to the electronic structure of the functional groups, although their ability to hinder ring rotations within the OPE backbone can lead to higher conductances at higher packing densities.",
keywords = "CONTROLLED CONDUCTANCE, CHARGE-TRANSPORT, SINGLE, WIRES, ELECTRONICS, CONDUCTIVITY, CIRCUITS, LEVEL",
author = "{Teresa Gonzalez}, M. and Xiaotao Zhao and Manrique, {David Zsolt} and Delia Miguel and Edmund Leary and Murat Gulcur and Batsanov, {Andrei S.} and Gabino Rubio-Bollinger and Lambert, {Colin J.} and Bryce, {Martin R.} and Nicolas Agrait",
year = "2014",
month = sep,
day = "18",
doi = "10.1021/jp506078a",
language = "English",
volume = "118",
pages = "21655--21662",
journal = "The Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "37",

}

RIS

TY - JOUR

T1 - Structural versus electrical functionalization of oligo(phenylene ethynylene) diamine molecular junctions

AU - Teresa Gonzalez, M.

AU - Zhao, Xiaotao

AU - Manrique, David Zsolt

AU - Miguel, Delia

AU - Leary, Edmund

AU - Gulcur, Murat

AU - Batsanov, Andrei S.

AU - Rubio-Bollinger, Gabino

AU - Lambert, Colin J.

AU - Bryce, Martin R.

AU - Agrait, Nicolas

PY - 2014/9/18

Y1 - 2014/9/18

N2 - We explore both experimentally and theoretically the conductance and packing of molecular junctions based on oligo(phenyleneethynylene) (OPE) diamine wires, when a series of functional groups are incorporated into the wires. Using the scanning tunnelling microscopy break-junction (STM BJ) technique, we study these compounds in two environments (air and 1,2,4-trichlorobenzene) and explore different starting molecular concentrations. We show that the electrical conductance of the molecular junctions exhibits variations among different compounds, which are significant at standard concentrations but become unimportant when working at a low enough concentration. This shows that the main effect of the functional groups is to affect the packing of the molecular wires, rather than to modify their electrical properties. Our theoretical calculations consistently predict no significant changes in the conductance of the wires due to the electronic structure of the functional groups, although their ability to hinder ring rotations within the OPE backbone can lead to higher conductances at higher packing densities.

AB - We explore both experimentally and theoretically the conductance and packing of molecular junctions based on oligo(phenyleneethynylene) (OPE) diamine wires, when a series of functional groups are incorporated into the wires. Using the scanning tunnelling microscopy break-junction (STM BJ) technique, we study these compounds in two environments (air and 1,2,4-trichlorobenzene) and explore different starting molecular concentrations. We show that the electrical conductance of the molecular junctions exhibits variations among different compounds, which are significant at standard concentrations but become unimportant when working at a low enough concentration. This shows that the main effect of the functional groups is to affect the packing of the molecular wires, rather than to modify their electrical properties. Our theoretical calculations consistently predict no significant changes in the conductance of the wires due to the electronic structure of the functional groups, although their ability to hinder ring rotations within the OPE backbone can lead to higher conductances at higher packing densities.

KW - CONTROLLED CONDUCTANCE

KW - CHARGE-TRANSPORT

KW - SINGLE

KW - WIRES

KW - ELECTRONICS

KW - CONDUCTIVITY

KW - CIRCUITS

KW - LEVEL

U2 - 10.1021/jp506078a

DO - 10.1021/jp506078a

M3 - Journal article

VL - 118

SP - 21655

EP - 21662

JO - The Journal of Physical Chemistry C

JF - The Journal of Physical Chemistry C

SN - 1932-7447

IS - 37

ER -