Single-Atom Control of Single-Molecule van der Waals Junctions with Semimetallic Transition Metal Dichalcogenide Electrodes

Physics

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TMDC_Main_NL_20230624 R2(1)
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https://doi.org/10.1021/acs.nanolett.3c01264
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Keywords

Mechanical Engineering, Condensed Matter Physics, General Materials Science, General Chemistry, Bioengineering

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Single-Atom Control of Single-Molecule van der Waals Junctions with Semimetallic Transition Metal Dichalcogenide Electrodes. / Lu, Zhixing; Hou, Songjun; Lin, Rongjian et al.
In: Nano Letters, Vol. 23, No. 13, 12.07.2023, p. 6027-6034.

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

Bibtex

@article{95f7190bd98944edb23eb643a446d2d0,

title = "Single-Atom Control of Single-Molecule van der Waals Junctions with Semimetallic Transition Metal Dichalcogenide Electrodes",

abstract = "Electrodes play an essential role in controlling electrode-molecule coupling. However, conventional metal electrodes require linkers to anchor the molecule. Van der Waals interaction offers a versatile strategy to connect the electrode and molecule without anchor groups. Except for graphene, the potential of other materials as electrodes to fabricate van der Waals molecular junctions remains unexplored. Herein, we utilize semimetallic transition metal dichalcogenides (TMDCs) 1T'-WTe as electrodes to fabricate WTe /metalated tetraphenylporphyrin (M-TPP)/WTe junctions via van der Waals interaction. Compared with chemically bonded Au/M-TPP/Au junctions, the conductance of these M-TPP van der Waals molecular junctions is enhanced by ∼736%. More importantly, WTe /M-TPP/WTe junctions exhibit the tunable conductance from 10 to 10 (1.15 orders of magnitude) via single-atom control, recording the widest tunable range of conductance for M-TPP molecular junctions. Our work demonstrates the potential of two-dimensional TMDCs for constructing highly tunable and conductive molecular devices.",

keywords = "Mechanical Engineering, Condensed Matter Physics, General Materials Science, General Chemistry, Bioengineering",

author = "Zhixing Lu and Songjun Hou and Rongjian Lin and Jie Shi and Qingqing Wu and Shiqiang Zhao and Luchun Lin and Chun Tang and Yang Yang and Lambert, {Colin J.} and Wenjing Hong",

year = "2023",

month = jul,

day = "12",

doi = "10.1021/acs.nanolett.3c01264",

language = "English",

volume = "23",

pages = "6027--6034",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "13",

}

RIS

TY - JOUR

T1 - Single-Atom Control of Single-Molecule van der Waals Junctions with Semimetallic Transition Metal Dichalcogenide Electrodes

AU - Lu, Zhixing

AU - Hou, Songjun

AU - Lin, Rongjian

AU - Shi, Jie

AU - Wu, Qingqing

AU - Zhao, Shiqiang

AU - Lin, Luchun

AU - Tang, Chun

AU - Yang, Yang

AU - Lambert, Colin J.

AU - Hong, Wenjing

PY - 2023/7/12

Y1 - 2023/7/12

N2 - Electrodes play an essential role in controlling electrode-molecule coupling. However, conventional metal electrodes require linkers to anchor the molecule. Van der Waals interaction offers a versatile strategy to connect the electrode and molecule without anchor groups. Except for graphene, the potential of other materials as electrodes to fabricate van der Waals molecular junctions remains unexplored. Herein, we utilize semimetallic transition metal dichalcogenides (TMDCs) 1T'-WTe as electrodes to fabricate WTe /metalated tetraphenylporphyrin (M-TPP)/WTe junctions via van der Waals interaction. Compared with chemically bonded Au/M-TPP/Au junctions, the conductance of these M-TPP van der Waals molecular junctions is enhanced by ∼736%. More importantly, WTe /M-TPP/WTe junctions exhibit the tunable conductance from 10 to 10 (1.15 orders of magnitude) via single-atom control, recording the widest tunable range of conductance for M-TPP molecular junctions. Our work demonstrates the potential of two-dimensional TMDCs for constructing highly tunable and conductive molecular devices.

AB - Electrodes play an essential role in controlling electrode-molecule coupling. However, conventional metal electrodes require linkers to anchor the molecule. Van der Waals interaction offers a versatile strategy to connect the electrode and molecule without anchor groups. Except for graphene, the potential of other materials as electrodes to fabricate van der Waals molecular junctions remains unexplored. Herein, we utilize semimetallic transition metal dichalcogenides (TMDCs) 1T'-WTe as electrodes to fabricate WTe /metalated tetraphenylporphyrin (M-TPP)/WTe junctions via van der Waals interaction. Compared with chemically bonded Au/M-TPP/Au junctions, the conductance of these M-TPP van der Waals molecular junctions is enhanced by ∼736%. More importantly, WTe /M-TPP/WTe junctions exhibit the tunable conductance from 10 to 10 (1.15 orders of magnitude) via single-atom control, recording the widest tunable range of conductance for M-TPP molecular junctions. Our work demonstrates the potential of two-dimensional TMDCs for constructing highly tunable and conductive molecular devices.

KW - Mechanical Engineering

KW - Condensed Matter Physics

KW - General Materials Science

KW - General Chemistry

KW - Bioengineering

U2 - 10.1021/acs.nanolett.3c01264

DO - 10.1021/acs.nanolett.3c01264

M3 - Journal article

VL - 23

SP - 6027

EP - 6034

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 13

ER -

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