IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-10323-9.html
   My bibliography  Save this article

Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures

Author

Listed:
  • J. Binder

    (Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL
    University of Warsaw)

  • J. Howarth

    (University of Manchester
    University of Manchester)

  • F. Withers

    (University of Exeter)

  • M. R. Molas

    (Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL
    University of Warsaw)

  • T. Taniguchi

    (National Institute for Materials Science)

  • K. Watanabe

    (National Institute for Materials Science)

  • C. Faugeras

    (Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL)

  • A. Wysmolek

    (University of Warsaw)

  • M. Danovich

    (University of Manchester
    University of Manchester)

  • V. I. Fal’ko

    (University of Manchester
    University of Manchester
    Henry Royce Institute for Advanced Materials)

  • A. K. Geim

    (University of Manchester
    University of Manchester)

  • K. S. Novoselov

    (University of Manchester
    University of Manchester)

  • M. Potemski

    (Laboratoire National des Champs Magnetiques Intenses, CNRS-UGA-UPS-INSA-EMFL
    University of Warsaw)

  • A. Kozikov

    (University of Manchester
    University of Manchester)

Abstract

The intriguing physics of carrier-carrier interactions, which likewise affect the operation of light emitting devices, stimulate the research on semiconductor structures at high densities of excited carriers, a limit reachable at large pumping rates or in systems with long-lived electron-hole pairs. By electrically injecting carriers into WSe2/MoS2 type-II heterostructures which are indirect in real and k-space, we establish a large population of typical optically silent interlayer excitons. Here, we reveal their emission spectra and show that the emission energy is tunable by an applied electric field. When the population is further increased by suppressing the radiative recombination rate with the introduction of an hBN spacer between WSe2 and MoS2, Auger-type and exciton-exciton annihilation processes become important. These processes are traced by the observation of an up-converted emission demonstrating that excitons gaining energy in non-radiative Auger processes can be recovered and recombine radiatively.

Suggested Citation

  • J. Binder & J. Howarth & F. Withers & M. R. Molas & T. Taniguchi & K. Watanabe & C. Faugeras & A. Wysmolek & M. Danovich & V. I. Fal’ko & A. K. Geim & K. S. Novoselov & M. Potemski & A. Kozikov, 2019. "Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures," Nature Communications, Nature, vol. 10(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10323-9
    DOI: 10.1038/s41467-019-10323-9
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-10323-9
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-10323-9?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. Hugo Henck & Diego Mauro & Daniil Domaretskiy & Marc Philippi & Shahriar Memaran & Wenkai Zheng & Zhengguang Lu & Dmitry Shcherbakov & Chun Ning Lau & Dmitry Smirnov & Luis Balicas & Kenji Watanabe & , 2022. "Light sources with bias tunable spectrum based on van der Waals interface transistors," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Andrew Y. Joe & Andrés M. Mier Valdivia & Luis A. Jauregui & Kateryna Pistunova & Dapeng Ding & You Zhou & Giovanni Scuri & Kristiaan De Greve & Andrey Sushko & Bumho Kim & Takashi Taniguchi & Kenji W, 2024. "Controlled interlayer exciton ionization in an electrostatic trap in atomically thin heterostructures," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    3. Yang Luo & Fan-Fang Kong & Xiao-Jun Tian & Yun-Jie Yu & Shi-Hao Jing & Chao Zhang & Gong Chen & Yang Zhang & Yao Zhang & Xiao-Guang Li & Zhen-Yu Zhang & Zhen-Chao Dong, 2024. "Anomalously bright single-molecule upconversion electroluminescence," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    4. Shuo Dong & Samuel Beaulieu & Malte Selig & Philipp Rosenzweig & Dominik Christiansen & Tommaso Pincelli & Maciej Dendzik & Jonas D. Ziegler & Julian Maklar & R. Patrick Xian & Alexander Neef & Avaise, 2023. "Observation of ultrafast interfacial Meitner-Auger energy transfer in a Van der Waals heterostructure," Nature Communications, Nature, vol. 14(1), pages 1-8, 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:10:y:2019:i:1:d:10.1038_s41467-019-10323-9. 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.