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The conductance of porphyrin-based molecular nanowires increases with length

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The conductance of porphyrin-based molecular nanowires increases with length. / Algethami, Norah; Sadeghi, Hatef; Sangtarash, Sara et al.
In: Nano Letters, Vol. 18, No. 7, 07.2018, p. 4482-4486.

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

Harvard

Algethami, N, Sadeghi, H, Sangtarash, S & Lambert, CJ 2018, 'The conductance of porphyrin-based molecular nanowires increases with length', Nano Letters, vol. 18, no. 7, pp. 4482-4486. https://doi.org/10.1021/acs.nanolett.8b01621

APA

Algethami, N., Sadeghi, H., Sangtarash, S., & Lambert, C. J. (2018). The conductance of porphyrin-based molecular nanowires increases with length. Nano Letters, 18(7), 4482-4486. https://doi.org/10.1021/acs.nanolett.8b01621

Vancouver

Algethami N, Sadeghi H, Sangtarash S, Lambert CJ. The conductance of porphyrin-based molecular nanowires increases with length. Nano Letters. 2018 Jul;18(7):4482-4486. Epub 2018 Jun 7. doi: 10.1021/acs.nanolett.8b01621

Author

Algethami, Norah ; Sadeghi, Hatef ; Sangtarash, Sara et al. / The conductance of porphyrin-based molecular nanowires increases with length. In: Nano Letters. 2018 ; Vol. 18, No. 7. pp. 4482-4486.

Bibtex

@article{6f8081a78ba04ce48d9a2c2a0027d4da,
title = "The conductance of porphyrin-based molecular nanowires increases with length",
abstract = "High electrical conductance molecular nanowires are highly desirable components for future molecular-scale circuitry, but typically molecular wires act as tunnel barriers and their conductance decays exponentially with length. Here we demonstrate that the conductance of fused-oligo-porphyrin nanowires can be either length independent or increase with length at room temperature. We show that this negative attenuation is an intrinsic property of fused-oligo-porphyrin nanowires, but its manifestation depends on the electrode material or anchor groups. This highly-desirable, non-classical behaviour signals the quantum nature of transport through such wires. It arises, because with increasing length, the tendency for electrical conductance to decay is compensated by a decrease in their HOMO-LUMO gap. Our study reveals the potential of these molecular wires as interconnects in future molecular-scale circuitry.",
author = "Norah Algethami and Hatef Sadeghi and Sara Sangtarash and Lambert, {Colin J.}",
year = "2018",
month = jul,
doi = "10.1021/acs.nanolett.8b01621",
language = "English",
volume = "18",
pages = "4482--4486",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "7",

}

RIS

TY - JOUR

T1 - The conductance of porphyrin-based molecular nanowires increases with length

AU - Algethami, Norah

AU - Sadeghi, Hatef

AU - Sangtarash, Sara

AU - Lambert, Colin J.

PY - 2018/7

Y1 - 2018/7

N2 - High electrical conductance molecular nanowires are highly desirable components for future molecular-scale circuitry, but typically molecular wires act as tunnel barriers and their conductance decays exponentially with length. Here we demonstrate that the conductance of fused-oligo-porphyrin nanowires can be either length independent or increase with length at room temperature. We show that this negative attenuation is an intrinsic property of fused-oligo-porphyrin nanowires, but its manifestation depends on the electrode material or anchor groups. This highly-desirable, non-classical behaviour signals the quantum nature of transport through such wires. It arises, because with increasing length, the tendency for electrical conductance to decay is compensated by a decrease in their HOMO-LUMO gap. Our study reveals the potential of these molecular wires as interconnects in future molecular-scale circuitry.

AB - High electrical conductance molecular nanowires are highly desirable components for future molecular-scale circuitry, but typically molecular wires act as tunnel barriers and their conductance decays exponentially with length. Here we demonstrate that the conductance of fused-oligo-porphyrin nanowires can be either length independent or increase with length at room temperature. We show that this negative attenuation is an intrinsic property of fused-oligo-porphyrin nanowires, but its manifestation depends on the electrode material or anchor groups. This highly-desirable, non-classical behaviour signals the quantum nature of transport through such wires. It arises, because with increasing length, the tendency for electrical conductance to decay is compensated by a decrease in their HOMO-LUMO gap. Our study reveals the potential of these molecular wires as interconnects in future molecular-scale circuitry.

U2 - 10.1021/acs.nanolett.8b01621

DO - 10.1021/acs.nanolett.8b01621

M3 - Journal article

VL - 18

SP - 4482

EP - 4486

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 7

ER -