Voltage-Induced Single-Molecule Junction Planarization

Research output: Contribution to journal › Letter › Research › peer-review

Standard

Voltage-Induced Single-Molecule Junction Planarization. / Zang, Yaping; Fung, E-dean; Fu, Tianren; Ray, Suman; Garner, Marc H.; Borges, Anders; Steigerwald, Michael L.; Patil, Satish; Solomon, Gemma; Venkataraman, Latha.

In: Nano Letters, Vol. 21, No. 1, 13.01.2021, p. 673-679.

Research output: Contribution to journal › Letter › Research › peer-review

Harvard

Zang, Y, Fung, E, Fu, T, Ray, S, Garner, MH, Borges, A, Steigerwald, ML, Patil, S, Solomon, G & Venkataraman, L 2021, 'Voltage-Induced Single-Molecule Junction Planarization', Nano Letters, vol. 21, no. 1, pp. 673-679. https://doi.org/10.1021/acs.nanolett.0c04260

APA

Zang, Y., Fung, E., Fu, T., Ray, S., Garner, M. H., Borges, A., Steigerwald, M. L., Patil, S., Solomon, G., & Venkataraman, L. (2021). Voltage-Induced Single-Molecule Junction Planarization. Nano Letters, 21(1), 673-679. https://doi.org/10.1021/acs.nanolett.0c04260

Vancouver

Zang Y, Fung E, Fu T, Ray S, Garner MH, Borges A et al. Voltage-Induced Single-Molecule Junction Planarization. Nano Letters. 2021 Jan 13;21(1):673-679. https://doi.org/10.1021/acs.nanolett.0c04260

Author

Zang, Yaping ; Fung, E-dean ; Fu, Tianren ; Ray, Suman ; Garner, Marc H. ; Borges, Anders ; Steigerwald, Michael L. ; Patil, Satish ; Solomon, Gemma ; Venkataraman, Latha. / Voltage-Induced Single-Molecule Junction Planarization. In: Nano Letters. 2021 ; Vol. 21, No. 1. pp. 673-679.

Bibtex

@article{7cf23ec4e30340d48cbe23e713d32f1c,
title = "Voltage-Induced Single-Molecule Junction Planarization",
abstract = "Probing structural changes of a molecule induced by charge transfer is important for understanding the physicochemical properties of molecules and developing new electronic devices. Here, we interrogate the structural changes of a single diketopyrrolopyrrole (DPP) molecule induced by charge transport at a high bias using scanning tunneling microscope break junction (STM-BJ) techniques. Specifically, we demonstrate that application of a high bias increases the average nonresonant conductance of single Au–DPP–Au junctions. We infer from the increased conductance that resonant charge transport induces planarization of the molecular backbone. We further show that this conformational planarization is assisted by thermally activated junction reorganization. The planarization only occurs under specific electronic conditions, which we rationalize by ab initio calculations. These results emphasize the need for a comprehensive view of single-molecule junctions which includes both the electronic properties and structure of the molecules and the electrodes when designing electrically driven single-molecule motors.",
author = "Yaping Zang and E-dean Fung and Tianren Fu and Suman Ray and Garner, {Marc H.} and Anders Borges and Steigerwald, {Michael L.} and Satish Patil and Gemma Solomon and Latha Venkataraman",
year = "2021",
month = jan,
day = "13",
doi = "10.1021/acs.nanolett.0c04260",
language = "English",
volume = "21",
pages = "673--679",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Voltage-Induced Single-Molecule Junction Planarization

AU - Zang, Yaping

AU - Fung, E-dean

AU - Fu, Tianren

AU - Ray, Suman

AU - Garner, Marc H.

AU - Borges, Anders

AU - Steigerwald, Michael L.

AU - Patil, Satish

AU - Solomon, Gemma

AU - Venkataraman, Latha

PY - 2021/1/13

Y1 - 2021/1/13

N2 - Probing structural changes of a molecule induced by charge transfer is important for understanding the physicochemical properties of molecules and developing new electronic devices. Here, we interrogate the structural changes of a single diketopyrrolopyrrole (DPP) molecule induced by charge transport at a high bias using scanning tunneling microscope break junction (STM-BJ) techniques. Specifically, we demonstrate that application of a high bias increases the average nonresonant conductance of single Au–DPP–Au junctions. We infer from the increased conductance that resonant charge transport induces planarization of the molecular backbone. We further show that this conformational planarization is assisted by thermally activated junction reorganization. The planarization only occurs under specific electronic conditions, which we rationalize by ab initio calculations. These results emphasize the need for a comprehensive view of single-molecule junctions which includes both the electronic properties and structure of the molecules and the electrodes when designing electrically driven single-molecule motors.

AB - Probing structural changes of a molecule induced by charge transfer is important for understanding the physicochemical properties of molecules and developing new electronic devices. Here, we interrogate the structural changes of a single diketopyrrolopyrrole (DPP) molecule induced by charge transport at a high bias using scanning tunneling microscope break junction (STM-BJ) techniques. Specifically, we demonstrate that application of a high bias increases the average nonresonant conductance of single Au–DPP–Au junctions. We infer from the increased conductance that resonant charge transport induces planarization of the molecular backbone. We further show that this conformational planarization is assisted by thermally activated junction reorganization. The planarization only occurs under specific electronic conditions, which we rationalize by ab initio calculations. These results emphasize the need for a comprehensive view of single-molecule junctions which includes both the electronic properties and structure of the molecules and the electrodes when designing electrically driven single-molecule motors.

U2 - 10.1021/acs.nanolett.0c04260

DO - 10.1021/acs.nanolett.0c04260

M3 - Letter

C2 - 33337876

VL - 21

SP - 673

EP - 679

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 1

ER -

ID: 261051121