IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v10y2019i1d10.1038_s41467-019-08904-9.html
   My bibliography  Save this article

Atomic electrostatic maps of 1D channels in 2D semiconductors using 4D scanning transmission electron microscopy

Author

Listed:
  • Shiang Fang

    (Harvard University)

  • Yi Wen

    (University of Oxford)

  • Christopher S. Allen

    (University of Oxford
    Diamond Light Source Ltd.)

  • Colin Ophus

    (Lawrence Berkeley National Laboratory)

  • Grace G. D. Han

    (Brandeis University)

  • Angus I. Kirkland

    (University of Oxford
    Diamond Light Source Ltd.)

  • Efthimios Kaxiras

    (Harvard University
    Harvard University)

  • Jamie H. Warner

    (University of Oxford)

Abstract

Defects in materials give rise to fluctuations in electrostatic fields that reflect the local charge density, but imaging this with single atom sensitivity is challenging. However, if possible, this provides information about the energetics of adatom binding, localized conduction channels, molecular functionality and their relationship to individual bonds. Here, ultrastable electron-optics are combined with a high-speed 2D electron detector to map electrostatic fields around individual atoms in 2D monolayers using 4D scanning transmission electron microscopy. Simultaneous imaging of the electric field, phase, annular dark field and the total charge in 2D MoS2 and WS2 is demonstrated for pristine areas and regions with 1D wires. The in-gap states in sulphur line vacancies cause 1D electron-rich channels that are mapped experimentally and confirmed using density functional theory calculations. We show how electrostatic fields are sensitive in defective areas to changes of atomic bonding and structural determination beyond conventional imaging.

Suggested Citation

  • Shiang Fang & Yi Wen & Christopher S. Allen & Colin Ophus & Grace G. D. Han & Angus I. Kirkland & Efthimios Kaxiras & Jamie H. Warner, 2019. "Atomic electrostatic maps of 1D channels in 2D semiconductors using 4D scanning transmission electron microscopy," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-08904-9
    DOI: 10.1038/s41467-019-08904-9
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-019-08904-9
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-019-08904-9?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. Jie Xu & Xiong-Xiong Xue & Gonglei Shao & Changfei Jing & Sheng Dai & Kun He & Peipei Jia & Shun Wang & Yifei Yuan & Jun Luo & Jun Lu, 2023. "Atomic-level polarization in electric fields of defects for electrocatalysis," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Joel Martis & Sandhya Susarla & Archith Rayabharam & Cong Su & Timothy Paule & Philipp Pelz & Cassandra Huff & Xintong Xu & Hao-Kun Li & Marc Jaikissoon & Victoria Chen & Eric Pop & Krishna Saraswat &, 2023. "Imaging the electron charge density in monolayer MoS2 at the Ångstrom scale," 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_s41467-019-08904-9. 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.