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Engineering the thermopower of C60 molecular junctions

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Engineering the thermopower of C60 molecular junctions. / Evangeli, Charalambos; Gillemot, Katalin; Leary, Edmund et al.
In: Nano Letters, Vol. 13, No. 5, 01.04.2013, p. 2141-2145.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Evangeli, C, Gillemot, K, Leary, E, Gonzalez, MT, Rubio-Bollinger, G, Lambert, C & Agrait, N 2013, 'Engineering the thermopower of C60 molecular junctions', Nano Letters, vol. 13, no. 5, pp. 2141-2145. https://doi.org/10.1021/nl400579g

APA

Evangeli, C., Gillemot, K., Leary, E., Gonzalez, M. T., Rubio-Bollinger, G., Lambert, C., & Agrait, N. (2013). Engineering the thermopower of C60 molecular junctions. Nano Letters, 13(5), 2141-2145. https://doi.org/10.1021/nl400579g

Vancouver

Evangeli C, Gillemot K, Leary E, Gonzalez MT, Rubio-Bollinger G, Lambert C et al. Engineering the thermopower of C60 molecular junctions. Nano Letters. 2013 Apr 1;13(5):2141-2145. doi: 10.1021/nl400579g

Author

Evangeli, Charalambos ; Gillemot, Katalin ; Leary, Edmund et al. / Engineering the thermopower of C60 molecular junctions. In: Nano Letters. 2013 ; Vol. 13, No. 5. pp. 2141-2145.

Bibtex

@article{719ffe8d92da4fcead99fa28e5da5ea8,
title = "Engineering the thermopower of C60 molecular junctions",
abstract = "We report the measurement of conductance and thermopower of C60 molecular junctions using a scanning tunneling microscope (STM). In contrast to previous measurements, we use the imaging capability of the STM to determine precisely the number of molecules in the junction and measure thermopower and conductance continuously and simultaneously during formation and breaking of the molecular junction, achieving a complete characterization at the single-molecule level. We find that the thermopower of C60 dimers formed by trapping a C60 on the tip and contacting an isolated C60 almost doubles with respect to that of a single C60 and is among the highest values measured to date for organic materials. Density functional theory calculations show that the thermopower and the figure of merit continue increasing with the number of C60 molecules, demonstrating the enhancement of thermoelectric preformance by manipulation of intermolecular interactions.",
keywords = "Molecular thermopower, molecular conductance, density functional theory, single molecule, THERMOELECTRICITY, HETEROJUNCTIONS, CONDUCTANCE",
author = "Charalambos Evangeli and Katalin Gillemot and Edmund Leary and Gonzalez, {M. Teresa} and Gabino Rubio-Bollinger and Colin Lambert and Nicolas Agrait",
year = "2013",
month = apr,
day = "1",
doi = "10.1021/nl400579g",
language = "English",
volume = "13",
pages = "2141--2145",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "5",

}

RIS

TY - JOUR

T1 - Engineering the thermopower of C60 molecular junctions

AU - Evangeli, Charalambos

AU - Gillemot, Katalin

AU - Leary, Edmund

AU - Gonzalez, M. Teresa

AU - Rubio-Bollinger, Gabino

AU - Lambert, Colin

AU - Agrait, Nicolas

PY - 2013/4/1

Y1 - 2013/4/1

N2 - We report the measurement of conductance and thermopower of C60 molecular junctions using a scanning tunneling microscope (STM). In contrast to previous measurements, we use the imaging capability of the STM to determine precisely the number of molecules in the junction and measure thermopower and conductance continuously and simultaneously during formation and breaking of the molecular junction, achieving a complete characterization at the single-molecule level. We find that the thermopower of C60 dimers formed by trapping a C60 on the tip and contacting an isolated C60 almost doubles with respect to that of a single C60 and is among the highest values measured to date for organic materials. Density functional theory calculations show that the thermopower and the figure of merit continue increasing with the number of C60 molecules, demonstrating the enhancement of thermoelectric preformance by manipulation of intermolecular interactions.

AB - We report the measurement of conductance and thermopower of C60 molecular junctions using a scanning tunneling microscope (STM). In contrast to previous measurements, we use the imaging capability of the STM to determine precisely the number of molecules in the junction and measure thermopower and conductance continuously and simultaneously during formation and breaking of the molecular junction, achieving a complete characterization at the single-molecule level. We find that the thermopower of C60 dimers formed by trapping a C60 on the tip and contacting an isolated C60 almost doubles with respect to that of a single C60 and is among the highest values measured to date for organic materials. Density functional theory calculations show that the thermopower and the figure of merit continue increasing with the number of C60 molecules, demonstrating the enhancement of thermoelectric preformance by manipulation of intermolecular interactions.

KW - Molecular thermopower

KW - molecular conductance

KW - density functional theory

KW - single molecule

KW - THERMOELECTRICITY

KW - HETEROJUNCTIONS

KW - CONDUCTANCE

U2 - 10.1021/nl400579g

DO - 10.1021/nl400579g

M3 - Journal article

AN - SCOPUS:84877271652

VL - 13

SP - 2141

EP - 2145

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 5

ER -