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    Rights statement: This is the author’s version of a work that was accepted for publication in Matter. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Matter, 4, 11, 2021 DOI: 10.1016/j.matt.2021.08.016

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Promotion and suppression of single-molecule conductance by quantum interference in macrocyclic circuits

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

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Promotion and suppression of single-molecule conductance by quantum interference in macrocyclic circuits. / Chen, Hongliang ; Hou, Songjun; Wu, Qingqing et al.
In: Matter, Vol. 4, No. 11, 30.11.2021, p. 3662-3676.

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

Harvard

Chen, H, Hou, S, Wu, Q, Jiang, F, Zhou, P, Zhang, L, Jiao, Y, Song, B, Guo, Q-H, Chen, X-Y, Hong, W, Lambert, C & Stoddart, JF 2021, 'Promotion and suppression of single-molecule conductance by quantum interference in macrocyclic circuits', Matter, vol. 4, no. 11, pp. 3662-3676. https://doi.org/10.1016/j.matt.2021.08.016

APA

Chen, H., Hou, S., Wu, Q., Jiang, F., Zhou, P., Zhang, L., Jiao, Y., Song, B., Guo, Q-H., Chen, X-Y., Hong, W., Lambert, C., & Stoddart, J. F. (2021). Promotion and suppression of single-molecule conductance by quantum interference in macrocyclic circuits. Matter, 4(11), 3662-3676. https://doi.org/10.1016/j.matt.2021.08.016

Vancouver

Chen H, Hou S, Wu Q, Jiang F, Zhou P, Zhang L et al. Promotion and suppression of single-molecule conductance by quantum interference in macrocyclic circuits. Matter. 2021 Nov 30;4(11):3662-3676. Epub 2021 Sept 15. doi: 10.1016/j.matt.2021.08.016

Author

Chen, Hongliang ; Hou, Songjun ; Wu, Qingqing et al. / Promotion and suppression of single-molecule conductance by quantum interference in macrocyclic circuits. In: Matter. 2021 ; Vol. 4, No. 11. pp. 3662-3676.

Bibtex

@article{b4118a00b3ac4018a5cfd8fab1b83ec2,
title = "Promotion and suppression of single-molecule conductance by quantum interference in macrocyclic circuits",
abstract = "Single-molecule electronics is a sub-field of nanoelectronics in which individual devices are formed from single molecules placed between source and drain electrodes. During the past few years, scientists have demonstrated that the flow of electricity through these devices is controlled by quantum interference (QI) between electrons passing from source to drain. Their future development, however, is hampered by difficulties in controlling interference effects. Herein, we demonstrate that electron transport in tetracationic cyclophane circuits is mediated by QI between channels formed from two lowest unoccupied molecular orbitals (LUMOs), while their highest occupied molecular orbitals (HOMOs) play no significant role. Energy differences between these two LUMO channels induce constructive interference, leading to high conductance. By contrast, phase differences between these LUMO channels result in destructive interference and a suppression in overall conductance. Such a design of single-molecule circuits enables the construction of single-molecule conductors and insulators based on a single cyclophane platform.",
keywords = "Cyclophanes, Intramolecular circuits, LUMO-dominated transport, Molecular electronics, Quantum interference, Single-supermolecule electronics, STM-BJs",
author = "Hongliang Chen and Songjun Hou and Qingqing Wu and Feng Jiang and Ping Zhou and Long Zhang and Yang Jiao and Bo Song and Qing-Hui Guo and Xiao-Yang Chen and Wenjing Hong and Colin Lambert and Stoddart, {J. Fraser}",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Matter. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Matter, 4, 11, 2021 DOI: 10.1016/j.matt.2021.08.016",
year = "2021",
month = nov,
day = "30",
doi = "10.1016/j.matt.2021.08.016",
language = "English",
volume = "4",
pages = "3662--3676",
journal = "Matter",
number = "11",

}

RIS

TY - JOUR

T1 - Promotion and suppression of single-molecule conductance by quantum interference in macrocyclic circuits

AU - Chen, Hongliang

AU - Hou, Songjun

AU - Wu, Qingqing

AU - Jiang, Feng

AU - Zhou, Ping

AU - Zhang, Long

AU - Jiao, Yang

AU - Song, Bo

AU - Guo, Qing-Hui

AU - Chen, Xiao-Yang

AU - Hong, Wenjing

AU - Lambert, Colin

AU - Stoddart, J. Fraser

N1 - This is the author’s version of a work that was accepted for publication in Matter. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Matter, 4, 11, 2021 DOI: 10.1016/j.matt.2021.08.016

PY - 2021/11/30

Y1 - 2021/11/30

N2 - Single-molecule electronics is a sub-field of nanoelectronics in which individual devices are formed from single molecules placed between source and drain electrodes. During the past few years, scientists have demonstrated that the flow of electricity through these devices is controlled by quantum interference (QI) between electrons passing from source to drain. Their future development, however, is hampered by difficulties in controlling interference effects. Herein, we demonstrate that electron transport in tetracationic cyclophane circuits is mediated by QI between channels formed from two lowest unoccupied molecular orbitals (LUMOs), while their highest occupied molecular orbitals (HOMOs) play no significant role. Energy differences between these two LUMO channels induce constructive interference, leading to high conductance. By contrast, phase differences between these LUMO channels result in destructive interference and a suppression in overall conductance. Such a design of single-molecule circuits enables the construction of single-molecule conductors and insulators based on a single cyclophane platform.

AB - Single-molecule electronics is a sub-field of nanoelectronics in which individual devices are formed from single molecules placed between source and drain electrodes. During the past few years, scientists have demonstrated that the flow of electricity through these devices is controlled by quantum interference (QI) between electrons passing from source to drain. Their future development, however, is hampered by difficulties in controlling interference effects. Herein, we demonstrate that electron transport in tetracationic cyclophane circuits is mediated by QI between channels formed from two lowest unoccupied molecular orbitals (LUMOs), while their highest occupied molecular orbitals (HOMOs) play no significant role. Energy differences between these two LUMO channels induce constructive interference, leading to high conductance. By contrast, phase differences between these LUMO channels result in destructive interference and a suppression in overall conductance. Such a design of single-molecule circuits enables the construction of single-molecule conductors and insulators based on a single cyclophane platform.

KW - Cyclophanes

KW - Intramolecular circuits

KW - LUMO-dominated transport

KW - Molecular electronics

KW - Quantum interference

KW - Single-supermolecule electronics

KW - STM-BJs

U2 - 10.1016/j.matt.2021.08.016

DO - 10.1016/j.matt.2021.08.016

M3 - Journal article

VL - 4

SP - 3662

EP - 3676

JO - Matter

JF - Matter

IS - 11

ER -