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High-performance thermoelectricity in edge-over-edge zinc-porphyrin molecular wires

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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High-performance thermoelectricity in edge-over-edge zinc-porphyrin molecular wires. / Noori, Mohammed; Sadeghi, Hatef; Lambert, Colin J.
In: Nanoscale, Vol. 9, No. 17, 11.04.2017, p. 5299-5304.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Noori, M, Sadeghi, H & Lambert, CJ 2017, 'High-performance thermoelectricity in edge-over-edge zinc-porphyrin molecular wires', Nanoscale, vol. 9, no. 17, pp. 5299-5304. https://doi.org/10.1039/c6nr09598d

APA

Noori, M., Sadeghi, H., & Lambert, C. J. (2017). High-performance thermoelectricity in edge-over-edge zinc-porphyrin molecular wires. Nanoscale, 9(17), 5299-5304. https://doi.org/10.1039/c6nr09598d

Vancouver

Noori M, Sadeghi H, Lambert CJ. High-performance thermoelectricity in edge-over-edge zinc-porphyrin molecular wires. Nanoscale. 2017 Apr 11;9(17):5299-5304. Epub 2017 Mar 31. doi: 10.1039/c6nr09598d

Author

Noori, Mohammed ; Sadeghi, Hatef ; Lambert, Colin J. / High-performance thermoelectricity in edge-over-edge zinc-porphyrin molecular wires. In: Nanoscale. 2017 ; Vol. 9, No. 17. pp. 5299-5304.

Bibtex

@article{29d9e8bfb8504b61aee4e4a0ece52c80,
title = "High-performance thermoelectricity in edge-over-edge zinc-porphyrin molecular wires",
abstract = "If high efficiency organic thermoelectric materials could be identified, then these would open the way to a range of energy harvesting technologies and Peltier coolers using flexible and transparent thin-film materials. We have compared the thermoelectric properties of three zinc porphyrin (ZnP) dimers and a ZnP monomer and found that the {"}edge-over-edge{"} dimer formed from stacked ZnP rings possesses a high electrical conductance, negligible phonon thermal conductance and a high Seebeck coefficient of the order of 300 μV K(-1). These combine to yield a predicted room-temperature figure of merit of ZT ≈ 4, which is the highest room-temperature ZT ever reported for a single organic molecule. This high value of ZT is a consequence of the low phonon thermal conductance arising from the stacked nature of the porphyrin rings, which hinders phonon transport through the edge-over-edge molecule and enhances the Seebeck coefficient.",
author = "Mohammed Noori and Hatef Sadeghi and Lambert, {Colin J.}",
note = "{\textcopyright} Royal Society of Chemistry 2017",
year = "2017",
month = apr,
day = "11",
doi = "10.1039/c6nr09598d",
language = "English",
volume = "9",
pages = "5299--5304",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "17",

}

RIS

TY - JOUR

T1 - High-performance thermoelectricity in edge-over-edge zinc-porphyrin molecular wires

AU - Noori, Mohammed

AU - Sadeghi, Hatef

AU - Lambert, Colin J.

N1 - © Royal Society of Chemistry 2017

PY - 2017/4/11

Y1 - 2017/4/11

N2 - If high efficiency organic thermoelectric materials could be identified, then these would open the way to a range of energy harvesting technologies and Peltier coolers using flexible and transparent thin-film materials. We have compared the thermoelectric properties of three zinc porphyrin (ZnP) dimers and a ZnP monomer and found that the "edge-over-edge" dimer formed from stacked ZnP rings possesses a high electrical conductance, negligible phonon thermal conductance and a high Seebeck coefficient of the order of 300 μV K(-1). These combine to yield a predicted room-temperature figure of merit of ZT ≈ 4, which is the highest room-temperature ZT ever reported for a single organic molecule. This high value of ZT is a consequence of the low phonon thermal conductance arising from the stacked nature of the porphyrin rings, which hinders phonon transport through the edge-over-edge molecule and enhances the Seebeck coefficient.

AB - If high efficiency organic thermoelectric materials could be identified, then these would open the way to a range of energy harvesting technologies and Peltier coolers using flexible and transparent thin-film materials. We have compared the thermoelectric properties of three zinc porphyrin (ZnP) dimers and a ZnP monomer and found that the "edge-over-edge" dimer formed from stacked ZnP rings possesses a high electrical conductance, negligible phonon thermal conductance and a high Seebeck coefficient of the order of 300 μV K(-1). These combine to yield a predicted room-temperature figure of merit of ZT ≈ 4, which is the highest room-temperature ZT ever reported for a single organic molecule. This high value of ZT is a consequence of the low phonon thermal conductance arising from the stacked nature of the porphyrin rings, which hinders phonon transport through the edge-over-edge molecule and enhances the Seebeck coefficient.

U2 - 10.1039/c6nr09598d

DO - 10.1039/c6nr09598d

M3 - Journal article

C2 - 28398431

VL - 9

SP - 5299

EP - 5304

JO - Nanoscale

JF - Nanoscale

SN - 2040-3364

IS - 17

ER -