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Tunneling current modulation in atomically precise graphene nanoribbon heterojunctions. / Senkovskiy, Boris V.; Nenashev, Alexey V.; Alavi, Seyed K. et al.

In: Nature Communications, Vol. 12, No. 1, 2542, 01.12.2021, p. 2542.

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

Harvard

Senkovskiy, BV, Nenashev, AV, Alavi, SK, Falke, Y, Hell, M, Bampoulis, P, Rybkovskiy, DV, Usachov, DY, Fedorov, AV, Chernov, AI, Gebhard, F, Meerholz, K, Hertel, D, Arita, M, Okuda, T, Miyamoto, K, Shimada, K, Fischer, FR, Michely, T, Baranovskii, SD, Lindfors, K, Szkopek, T & Grüneis, A 2021, 'Tunneling current modulation in atomically precise graphene nanoribbon heterojunctions', Nature Communications, vol. 12, no. 1, 2542, pp. 2542. https://doi.org/10.1038/s41467-021-22774-0

APA

Senkovskiy, B. V., Nenashev, A. V., Alavi, S. K., Falke, Y., Hell, M., Bampoulis, P., Rybkovskiy, D. V., Usachov, D. Y., Fedorov, A. V., Chernov, A. I., Gebhard, F., Meerholz, K., Hertel, D., Arita, M., Okuda, T., Miyamoto, K., Shimada, K., Fischer, F. R., Michely, T., ... Grüneis, A. (2021). Tunneling current modulation in atomically precise graphene nanoribbon heterojunctions. Nature Communications, 12(1), 2542. [2542]. https://doi.org/10.1038/s41467-021-22774-0

Vancouver

Senkovskiy BV, Nenashev AV, Alavi SK, Falke Y, Hell M, Bampoulis P et al. Tunneling current modulation in atomically precise graphene nanoribbon heterojunctions. Nature Communications. 2021 Dec 1;12(1):2542. 2542. doi: 10.1038/s41467-021-22774-0

Author

Senkovskiy, Boris V. ; Nenashev, Alexey V. ; Alavi, Seyed K. et al. / Tunneling current modulation in atomically precise graphene nanoribbon heterojunctions. In: Nature Communications. 2021 ; Vol. 12, No. 1. pp. 2542.

BibTeX

@article{2054f0d9e411476fa079b1d8e168c68c,
title = "Tunneling current modulation in atomically precise graphene nanoribbon heterojunctions",
abstract = "Lateral heterojunctions of atomically precise graphene nanoribbons (GNRs) hold promise for applications in nanotechnology, yet their charge transport and most of the spectroscopic properties have not been investigated. Here, we synthesize a monolayer of multiple aligned heterojunctions consisting of quasi-metallic and wide-bandgap GNRs, and report characterization by scanning tunneling microscopy, angle-resolved photoemission, Raman spectroscopy, and charge transport. Comprehensive transport measurements as a function of bias and gate voltages, channel length, and temperature reveal that charge transport is dictated by tunneling through the potential barriers formed by wide-bandgap GNR segments. The current-voltage characteristics are in agreement with calculations of tunneling conductance through asymmetric barriers. We fabricate a GNR heterojunctions based sensor and demonstrate greatly improved sensitivity to adsorbates compared to graphene based sensors. This is achieved via modulation of the GNR heterojunction tunneling barriers by adsorbates.",
author = "Senkovskiy, {Boris V.} and Nenashev, {Alexey V.} and Alavi, {Seyed K.} and Yannic Falke and Martin Hell and Pantelis Bampoulis and Rybkovskiy, {Dmitry V.} and Usachov, {Dmitry Yu} and Fedorov, {Alexander V.} and Chernov, {Alexander I.} and Florian Gebhard and Klaus Meerholz and Dirk Hertel and Masashi Arita and Taichi Okuda and Koji Miyamoto and Kenya Shimada and Fischer, {Felix R.} and Thomas Michely and Baranovskii, {Sergei D.} and Klas Lindfors and Thomas Szkopek and Alexander Gr{\"u}neis",
note = "Funding Information: B.V.S., Y.F., and A.G. acknowledge the ERC-grant no. 648589 “SUPER-2D.” A.G. and K.L. acknowledge DFG projects GR 3708/4-1 and LI 2633/5-1. T.S. acknowledges support from “Quantum Matter and Materials” for a long-time stay in Cologne. A.V.N. acknowledges financial support from the Russian Foundation for Basic Research (project 20-52-00016 Bel-a). S.K.A. acknowledges Bonn Cologne Graduate School (BCGS) of Physics and Astronomy and DAAD for financial support. K.L. and S.K.A. acknowledge a grant from the Volkswagen Foundation. We thank Professor Yoichi Ando for support of the nanos-tructuring. P.B. acknowledges financial support from the Alexander von Humboldt foundation. D.V.R. acknowledges support from Russian Ministry of Science and Higher Education (Grant No. 2711.2020.2 to leading scientific schools). D.Y.U. acknowledges Saint Petersburg State University (Grant No. ID 73028629). We acknowledge the Hiroshima Synchrotron Radiation Facility for providing access to its facilities (proposal 17BG018). We also acknowledge HZB BESSY II for the provision of synchrotron radiation. A.I.C. acknowledges support by the Alexander-von-Humboldt-Stiftung. Research is supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award DE-SC0010409 (design, synthesis, and characterization of molecular precursors). Publisher Copyright: {\textcopyright} 2021, The Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",
year = "2021",
month = dec,
day = "1",
doi = "10.1038/s41467-021-22774-0",
language = "English",
volume = "12",
pages = "2542",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",

}

RIS

TY - JOUR

T1 - Tunneling current modulation in atomically precise graphene nanoribbon heterojunctions

AU - Senkovskiy, Boris V.

AU - Nenashev, Alexey V.

AU - Alavi, Seyed K.

AU - Falke, Yannic

AU - Hell, Martin

AU - Bampoulis, Pantelis

AU - Rybkovskiy, Dmitry V.

AU - Usachov, Dmitry Yu

AU - Fedorov, Alexander V.

AU - Chernov, Alexander I.

AU - Gebhard, Florian

AU - Meerholz, Klaus

AU - Hertel, Dirk

AU - Arita, Masashi

AU - Okuda, Taichi

AU - Miyamoto, Koji

AU - Shimada, Kenya

AU - Fischer, Felix R.

AU - Michely, Thomas

AU - Baranovskii, Sergei D.

AU - Lindfors, Klas

AU - Szkopek, Thomas

AU - Grüneis, Alexander

N1 - Funding Information: B.V.S., Y.F., and A.G. acknowledge the ERC-grant no. 648589 “SUPER-2D.” A.G. and K.L. acknowledge DFG projects GR 3708/4-1 and LI 2633/5-1. T.S. acknowledges support from “Quantum Matter and Materials” for a long-time stay in Cologne. A.V.N. acknowledges financial support from the Russian Foundation for Basic Research (project 20-52-00016 Bel-a). S.K.A. acknowledges Bonn Cologne Graduate School (BCGS) of Physics and Astronomy and DAAD for financial support. K.L. and S.K.A. acknowledge a grant from the Volkswagen Foundation. We thank Professor Yoichi Ando for support of the nanos-tructuring. P.B. acknowledges financial support from the Alexander von Humboldt foundation. D.V.R. acknowledges support from Russian Ministry of Science and Higher Education (Grant No. 2711.2020.2 to leading scientific schools). D.Y.U. acknowledges Saint Petersburg State University (Grant No. ID 73028629). We acknowledge the Hiroshima Synchrotron Radiation Facility for providing access to its facilities (proposal 17BG018). We also acknowledge HZB BESSY II for the provision of synchrotron radiation. A.I.C. acknowledges support by the Alexander-von-Humboldt-Stiftung. Research is supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award DE-SC0010409 (design, synthesis, and characterization of molecular precursors). Publisher Copyright: © 2021, The Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/12/1

Y1 - 2021/12/1

N2 - Lateral heterojunctions of atomically precise graphene nanoribbons (GNRs) hold promise for applications in nanotechnology, yet their charge transport and most of the spectroscopic properties have not been investigated. Here, we synthesize a monolayer of multiple aligned heterojunctions consisting of quasi-metallic and wide-bandgap GNRs, and report characterization by scanning tunneling microscopy, angle-resolved photoemission, Raman spectroscopy, and charge transport. Comprehensive transport measurements as a function of bias and gate voltages, channel length, and temperature reveal that charge transport is dictated by tunneling through the potential barriers formed by wide-bandgap GNR segments. The current-voltage characteristics are in agreement with calculations of tunneling conductance through asymmetric barriers. We fabricate a GNR heterojunctions based sensor and demonstrate greatly improved sensitivity to adsorbates compared to graphene based sensors. This is achieved via modulation of the GNR heterojunction tunneling barriers by adsorbates.

AB - Lateral heterojunctions of atomically precise graphene nanoribbons (GNRs) hold promise for applications in nanotechnology, yet their charge transport and most of the spectroscopic properties have not been investigated. Here, we synthesize a monolayer of multiple aligned heterojunctions consisting of quasi-metallic and wide-bandgap GNRs, and report characterization by scanning tunneling microscopy, angle-resolved photoemission, Raman spectroscopy, and charge transport. Comprehensive transport measurements as a function of bias and gate voltages, channel length, and temperature reveal that charge transport is dictated by tunneling through the potential barriers formed by wide-bandgap GNR segments. The current-voltage characteristics are in agreement with calculations of tunneling conductance through asymmetric barriers. We fabricate a GNR heterojunctions based sensor and demonstrate greatly improved sensitivity to adsorbates compared to graphene based sensors. This is achieved via modulation of the GNR heterojunction tunneling barriers by adsorbates.

UR - http://www.scopus.com/inward/record.url?scp=85105347745&partnerID=8YFLogxK

U2 - 10.1038/s41467-021-22774-0

DO - 10.1038/s41467-021-22774-0

M3 - Article

C2 - 33953174

AN - SCOPUS:85105347745

VL - 12

SP - 2542

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

IS - 1

M1 - 2542

ER -

ID: 28555653