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Tuning the thermoelectrical properties of anthracene-based self-assembled monolayers

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Tuning the thermoelectrical properties of anthracene-based self-assembled monolayers. / Ismael, A.; Wang, X.; Bennett, T.L.R. et al.
In: Chemical Science, Vol. 11, No. 26, 14.07.2020, p. 6836-6841.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Ismael, A, Wang, X, Bennett, TLR, Wilkinson, LA, Robinson, BJ, Long, NJ, Cohen, LF & Lambert, CJ 2020, 'Tuning the thermoelectrical properties of anthracene-based self-assembled monolayers', Chemical Science, vol. 11, no. 26, pp. 6836-6841. https://doi.org/10.1039/d0sc02193h

APA

Vancouver

Ismael A, Wang X, Bennett TLR, Wilkinson LA, Robinson BJ, Long NJ et al. Tuning the thermoelectrical properties of anthracene-based self-assembled monolayers. Chemical Science. 2020 Jul 14;11(26):6836-6841. Epub 2020 Jun 22. doi: 10.1039/d0sc02193h

Author

Ismael, A. ; Wang, X. ; Bennett, T.L.R. et al. / Tuning the thermoelectrical properties of anthracene-based self-assembled monolayers. In: Chemical Science. 2020 ; Vol. 11, No. 26. pp. 6836-6841.

Bibtex

@article{bd5d4255c4694bb498059777d6146963,
title = "Tuning the thermoelectrical properties of anthracene-based self-assembled monolayers",
abstract = "It is known that the electrical conductance of single molecules can be controlled in a deterministic manner by chemically varying their anchor groups to external electrodes. Here, by employing synthetic methodologies to vary the terminal anchor groups around aromatic anthracene cores, and by forming self-assembled monolayers (SAMs) of the resulting molecules, we demonstrate that this method of control can be translated into cross-plane SAM-on-gold molecular films. The cross-plane conductance of SAMs formed from anthracene-based molecules with four different combinations of anchors are measured to differ by a factor of approximately 3 in agreement with theoretical predictions. We also demonstrate that the Seebeck coefficient of such films can be boosted by more than an order of magnitude by an appropriate choice of anchor groups and that both positive and negative Seebeck coefficients can be realised. This demonstration that the thermoelectric properties of SAMs are controlled by their anchor groups represents a critical step towards functional ultra-thin-film devices for future molecular-scale electronics. {\textcopyright} The Royal Society of Chemistry.",
keywords = "Anthracene, Molecules, Seebeck coefficient, Thin film devices, Ultrathin films, Anchor groups, Critical steps, Electrical conductance, Molecular films, Molecular-scale electronics, Single molecule, Synthetic methodology, Thermoelectric properties, Self assembled monolayers",
author = "A. Ismael and X. Wang and T.L.R. Bennett and L.A. Wilkinson and B.J. Robinson and N.J. Long and L.F. Cohen and C.J. Lambert",
year = "2020",
month = jul,
day = "14",
doi = "10.1039/d0sc02193h",
language = "English",
volume = "11",
pages = "6836--6841",
journal = "Chemical Science",
issn = "2041-6520",
publisher = "Royal Society of Chemistry",
number = "26",

}

RIS

TY - JOUR

T1 - Tuning the thermoelectrical properties of anthracene-based self-assembled monolayers

AU - Ismael, A.

AU - Wang, X.

AU - Bennett, T.L.R.

AU - Wilkinson, L.A.

AU - Robinson, B.J.

AU - Long, N.J.

AU - Cohen, L.F.

AU - Lambert, C.J.

PY - 2020/7/14

Y1 - 2020/7/14

N2 - It is known that the electrical conductance of single molecules can be controlled in a deterministic manner by chemically varying their anchor groups to external electrodes. Here, by employing synthetic methodologies to vary the terminal anchor groups around aromatic anthracene cores, and by forming self-assembled monolayers (SAMs) of the resulting molecules, we demonstrate that this method of control can be translated into cross-plane SAM-on-gold molecular films. The cross-plane conductance of SAMs formed from anthracene-based molecules with four different combinations of anchors are measured to differ by a factor of approximately 3 in agreement with theoretical predictions. We also demonstrate that the Seebeck coefficient of such films can be boosted by more than an order of magnitude by an appropriate choice of anchor groups and that both positive and negative Seebeck coefficients can be realised. This demonstration that the thermoelectric properties of SAMs are controlled by their anchor groups represents a critical step towards functional ultra-thin-film devices for future molecular-scale electronics. © The Royal Society of Chemistry.

AB - It is known that the electrical conductance of single molecules can be controlled in a deterministic manner by chemically varying their anchor groups to external electrodes. Here, by employing synthetic methodologies to vary the terminal anchor groups around aromatic anthracene cores, and by forming self-assembled monolayers (SAMs) of the resulting molecules, we demonstrate that this method of control can be translated into cross-plane SAM-on-gold molecular films. The cross-plane conductance of SAMs formed from anthracene-based molecules with four different combinations of anchors are measured to differ by a factor of approximately 3 in agreement with theoretical predictions. We also demonstrate that the Seebeck coefficient of such films can be boosted by more than an order of magnitude by an appropriate choice of anchor groups and that both positive and negative Seebeck coefficients can be realised. This demonstration that the thermoelectric properties of SAMs are controlled by their anchor groups represents a critical step towards functional ultra-thin-film devices for future molecular-scale electronics. © The Royal Society of Chemistry.

KW - Anthracene

KW - Molecules

KW - Seebeck coefficient

KW - Thin film devices

KW - Ultrathin films

KW - Anchor groups

KW - Critical steps

KW - Electrical conductance

KW - Molecular films

KW - Molecular-scale electronics

KW - Single molecule

KW - Synthetic methodology

KW - Thermoelectric properties

KW - Self assembled monolayers

U2 - 10.1039/d0sc02193h

DO - 10.1039/d0sc02193h

M3 - Journal article

VL - 11

SP - 6836

EP - 6841

JO - Chemical Science

JF - Chemical Science

SN - 2041-6520

IS - 26

ER -