IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v8y2017i1d10.1038_ncomms15251.html
   My bibliography  Save this article

Coulomb engineering of the bandgap and excitons in two-dimensional materials

Author

Listed:
  • Archana Raja

    (Columbia University
    Columbia University
    Stanford University
    SLAC National Accelerator Laboratory)

  • Andrey Chaves

    (Columbia University
    Universidade Federal do Ceará)

  • Jaeeun Yu

    (Columbia University)

  • Ghidewon Arefe

    (Columbia University)

  • Heather M. Hill

    (Columbia University
    Stanford University)

  • Albert F. Rigosi

    (Columbia University
    Stanford University)

  • Timothy C. Berkelbach

    (University of Chicago)

  • Philipp Nagler

    (University of Regensburg)

  • Christian Schüller

    (University of Regensburg)

  • Tobias Korn

    (University of Regensburg)

  • Colin Nuckolls

    (Columbia University)

  • James Hone

    (Columbia University)

  • Louis E. Brus

    (Columbia University)

  • Tony F. Heinz

    (Columbia University
    Stanford University
    SLAC National Accelerator Laboratory)

  • David R. Reichman

    (Columbia University)

  • Alexey Chernikov

    (Columbia University
    University of Regensburg)

Abstract

The ability to control the size of the electronic bandgap is an integral part of solid-state technology. Atomically thin two-dimensional crystals offer a new approach for tuning the energies of the electronic states based on the unusual strength of the Coulomb interaction in these materials and its environmental sensitivity. Here, we show that by engineering the surrounding dielectric environment, one can tune the electronic bandgap and the exciton binding energy in monolayers of WS2 and WSe2 by hundreds of meV. We exploit this behaviour to present an in-plane dielectric heterostructure with a spatially dependent bandgap, as an initial step towards the creation of diverse lateral junctions with nanoscale resolution.

Suggested Citation

  • Archana Raja & Andrey Chaves & Jaeeun Yu & Ghidewon Arefe & Heather M. Hill & Albert F. Rigosi & Timothy C. Berkelbach & Philipp Nagler & Christian Schüller & Tobias Korn & Colin Nuckolls & James Hone, 2017. "Coulomb engineering of the bandgap and excitons in two-dimensional materials," Nature Communications, Nature, vol. 8(1), pages 1-7, August.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15251
    DOI: 10.1038/ncomms15251
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/ncomms15251
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/ncomms15251?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Dogyeong Kim & Sol Lee & Jiwon Park & Jinho Lee & Hee Cheul Choi & Kwanpyo Kim & Sunmin Ryu, 2023. "In-plane and out-of-plane excitonic coupling in 2D molecular crystals," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Erfu Liu & Jeremiah Baren & Zhengguang Lu & Takashi Taniguchi & Kenji Watanabe & Dmitry Smirnov & Yia-Chung Chang & Chun Hung Lui, 2021. "Exciton-polaron Rydberg states in monolayer MoSe2 and WSe2," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    3. Shuai Zhang & Baichang Li & Xinzhong Chen & Francesco L. Ruta & Yinming Shao & Aaron J. Sternbach & A. S. McLeod & Zhiyuan Sun & Lin Xiong & S. L. Moore & Xinyi Xu & Wenjing Wu & Sara Shabani & Lin Zh, 2022. "Nano-spectroscopy of excitons in atomically thin transition metal dichalcogenides," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    4. Yanhao Tang & Jie Gu & Song Liu & Kenji Watanabe & Takashi Taniguchi & James C. Hone & Kin Fai Mak & Jie Shan, 2022. "Dielectric catastrophe at the Wigner-Mott transition in a moiré superlattice," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    5. Shengcong Shang & Changsheng Du & Youxing Liu & Minghui Liu & Xinyu Wang & Wenqiang Gao & Ye Zou & Jichen Dong & Yunqi Liu & Jianyi Chen, 2022. "A one-dimensional conductive metal-organic framework with extended π-d conjugated nanoribbon layers," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15251. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.