# Optical Properties of MoSe<sub>2</sub> Monolayer Implanted with Ultra-Low-Energy Cr Ions

https://mdr.nims.go.jp/datasets/8dafa80f-e70c-403e-8a7c-2cccf8089b53

## File

- [acsami.3c05366.pdf](https://mdr.nims.go.jp/filesets/62e5efee-e6f3-46af-9f20-2db09e980872/download) ([Detail](https://mdr.nims.go.jp/filesets/62e5efee-e6f3-46af-9f20-2db09e980872.md))

## Id

8dafa80f-e70c-403e-8a7c-2cccf8089b53

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-25T01:07:57.599779Z

## Updated at

2025-02-25T23:30:29.583291Z

## Published at

2025-02-25T23:30:29.662833Z

## Doi



## First published url

https://doi.org/10.1021/acsami.3c05366

## Date published

2023-07-26

## Recorded date published

2023-7-26

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Optical Properties of MoSe<sub>2</sub> Monolayer Implanted with Ultra-Low-Energy
    Cr Ions
  title_type: original
  lang: en

## Description

- description: The paper explores the optical properties of an exfoliated MoSe2 monolayer
    im- planted with Cr+ ions, accelerated to 25 eV. Photoluminescence of the implanted
    MoSe2 reveals an emission line from Cr-related defects that present only under
    weak electron doping. Unlike band-to-band transition, the Cr-introduced emission
    is characterised by non-zero activation energy, long lifetimes, and weak response
    to the magnetic field. To rationalise the experimental results and get insights
    into the atomic structure of the defects, we modelled the Cr-ion irradiation process
    using ab-initio molecular dynamics simulations followed by the electronic structure
    calculations of the system with defects. The experimental and theoretical results
    suggest that the recombination of electrons on the acceptors, which could be introduced
    by the Cr implantation-induced defects, with the valence band holes is the most
    likely origin of the low energy emission. Our results demonstrate the potential
    of low-energy ion implantation as a tool to tailor the properties of 2D materials
    by doping.
  description_type: abstract
  lang: und

## Creator

- name: Minh N. Bui
  role: author
- name: Stefan Rost
  role: author
- name: Manuel Auge
  role: author
- name: Lanqing Zhou
  role: author
- name: Christoph Friedrich
  role: author
- name: Stefan Blügel
  role: author
- name: Silvan Kretschmer
  role: author
- name: Arkady V. Krasheninnikov
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Hans C. Hofsäss
  role: author
- name: Detlev Grützmacher
  role: author
- name: Beata E. Kardynał
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Cr+ ions
  schema: not_defined
- subject: MoSe2 monolayer
  schema: not_defined
- subject: photoluminescence
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: ACS Applied Materials & Interfaces
  issn: '19448252'
  volume: '15'
  issue: '29'
  start_page: 35321
  end_page: 35331

## Conference



## Related item



## Funding

- identifier: 20H00354
  funder_name: Japan Society for the Promotion of Science
- identifier: KR 4866/8-1
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: SFB-1415-417590517
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: 19H05790
  funder_name: Japan Society for the Promotion of Science
- identifier: 93 425
  funder_name: Volkswagen Foundation
- identifier: 93 427
  funder_name: Volkswagen Foundation
- identifier: 93 428
  funder_name: Volkswagen Foundation

## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Process for specimen treatment



## Computational method



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## Fileset

- id: 62e5efee-e6f3-46af-9f20-2db09e980872
  filename: acsami.3c05366.pdf
  content_type: application/pdf
  size: 3481661
  md5: 41fb3d8b44fe5fdc0d2078a862dd25cf

## Thumbnail

fileset_id: 62e5efee-e6f3-46af-9f20-2db09e980872
filename: acsami.3c05366.pdf