# Localized interlayer excitons in MoSe2–WSe2 heterostructures without a moiré potential

https://mdr.nims.go.jp/datasets/15fbb822-a52c-4648-9757-6f57df03925f

## File

- [Mahdikhanysarvejahany_et_al-2022-Nature_Communications.pdf](https://mdr.nims.go.jp/filesets/91f0983a-6844-48af-8ace-b724715cadb1/download) ([Detail](https://mdr.nims.go.jp/filesets/91f0983a-6844-48af-8ace-b724715cadb1.md))

## Id

15fbb822-a52c-4648-9757-6f57df03925f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-26T07:04:34.592519Z

## Updated at

2025-02-27T03:31:01.162370Z

## Published at

2025-02-27T03:31:01.312631Z

## Doi



## First published url

https://doi.org/10.1038/s41467-022-33082-6

## Date published

2022-09-12

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Localized interlayer excitons in MoSe2–WSe2 heterostructures without a moiré
    potential
  title_type: original
  lang: en

## Description

- description: 'Trapped interlayer excitons (IXs) in MoSe2-WSe2 heterobilayers have
    generated interest for use as single quantum emitter arrays and an opportunity
    to study moiré physics in transition metal dichalcogenide (TMD) heterostructures.
    IXs are spatially indirectly excitons comprised of an electron in the MoSe2 layer
    bound to a hole in the WSe2 layer. Previous reports of spectrally narrow (<1 meV)
    photoluminescence (PL) emission lines at low temperature have been attributed
    to IXs localized by the moiré potential between the TMD layers. Here, we show
    that spectrally narrow IX PL lines are present even when the moiré potential is
    suppressed by inserting a bilayer hBN spacer between the TMD layers. We directly
    compare the doping, electric field, and magnetic field, and temperature dependence
    of IXs in a directly contacted MoSe2-WSe2 region to those separated by bilayer
    hBN. Our results show that the localization potential resulting in the narrow
    PL lines is independent of the moiré potential, and instead likely due to extrinsic
    effects such as nanobubbles or defects. We show that while the doping, electric
    field, and temperature dependence of the narrow IX lines is similar for both regions,
    their excitonic g-factors have opposite signs, indicating that the IXs in the
    directly contacted region are trapped by both moiré and extrinsic localization
    potentials. '
  description_type: abstract
  lang: und

## Creator

- name: Fateme Mahdikhanysarvejahany
  role: author
- name: Daniel N. Shanks
  role: author
- name: Matthew Klein
  role: author
- name: Qian Wang
  role: author
- name: Michael R. Koehler
  role: author
- name: David G. Mandrus
  role: author
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Oliver L. A. Monti
  role: author
- name: Brian J. LeRoy
  role: author
- name: John R. Schaibley
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Interlayer excitons
  schema: not_defined
- subject: photoluminescence
  schema: not_defined
- subject: moiré potential
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '13'
  issue: '1'
  article_number: '5354'

## Conference



## Related item



## Funding

- identifier: DMR-2003583
  funder_name: National Science Foundation

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



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## Fileset

- id: 91f0983a-6844-48af-8ace-b724715cadb1
  filename: Mahdikhanysarvejahany_et_al-2022-Nature_Communications.pdf
  content_type: application/pdf
  size: 2815127
  md5: 0a49fcdb1d71941ad24481ccd7e05046

## Thumbnail

fileset_id: 91f0983a-6844-48af-8ace-b724715cadb1
filename: Mahdikhanysarvejahany_et_al-2022-Nature_Communications.pdf