# Nature of Long-Lived Moiré Interlayer Excitons in Electrically Tunable MoS<sub>2</sub>/MoSe<sub>2</sub> Heterobilayers

https://mdr.nims.go.jp/datasets/f5595e8c-6ca1-45f8-be5d-d4577474f9ce

## File

- [alexeev-et-al-2024-nature-of-long-lived-moiré-interlayer-excitons-in-electrically-tunable-mos2-mose2-heterobilayers.pdf](https://mdr.nims.go.jp/filesets/fbc0118b-c7ad-4e68-b540-75ab5bae0540/download) ([Detail](https://mdr.nims.go.jp/filesets/fbc0118b-c7ad-4e68-b540-75ab5bae0540.md))

## Id

f5595e8c-6ca1-45f8-be5d-d4577474f9ce

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-07T10:27:03.780391Z

## Updated at

2026-02-10T23:30:15.719245Z

## Published at

2026-02-10T09:03:08.906931Z

## Doi



## First published url

https://doi.org/10.1021/acs.nanolett.4c02635

## Date published

2024-09-11

## Recorded date published

2024-9-11

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Nature of Long-Lived Moiré Interlayer Excitons in Electrically Tunable MoS<sub>2</sub>/MoSe<sub>2</sub>
    Heterobilayers
  title_type: original
  lang: en

## Description

- description: Interlayer excitons in transition-metal dichalcogenide heterobilayers
    combine high binding energy and valley-contrasting physics with long optical lifetime
    and strong dipolar character. Their permanent electric dipole enables electric-field
    control of emis- sion energy, lifetime, and spatial localization. Material combination
    and device ge- ometry has direct impact on the nature of the interlayer excitons
    via their real- and momentum-space configuration. Here, we show that interlayer
    excitons in MoS2/MoSe2 heterobilayers are formed by charge carriers residing at
    the edges of the Brillouin zone, with negligible degree of interlayer hybridization.
    We find that the presence of the moiré superlattice leads to the reversal of the
    valley-dependent optical selection rules, yielding a positively valued g-factor
    and cross-polarized photoluminescence. Time- resolved photoluminescence measurements
    reveal that the interlayer exciton population retains the optically induced valley
    polarization throughout its microsecond-long life- time. The combination of long
    optical lifetime and valley polarization retention makes MoS2/MoSe2 heterobilayers
    a promising platform for studying fundamental bosonic interactions and developing
    excitonic circuits for optical information processing.
  description_type: abstract
  lang: und

## Creator

- name: Evgeny M. Alexeev
  role: author
- name: Carola M. Purser
  role: author
- name: Carmem M. Gilardoni
  role: author
- name: James Kerfoot
  role: author
- name: Hao Chen
  role: author
- name: Alisson R. Cadore
  role: author
- name: Bárbara L.T. Rosa
  role: author
- name: Matthew S. G. Feuer
  role: author
- name: Evans Javary
  role: author
- name: Patrick Hays
  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: Seth Ariel Tongay
  role: author
- name: Dhiren M. Kara
  role: author
- name: Mete Atatüre
  role: author
- name: Andrea C. Ferrari
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: 'interlayer excitons
    '
  schema: not_defined
- subject: 'MoS2/MoSe2
    '
  schema: not_defined
- subject: 'moiré superlattice
    '
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2024-08-30

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nano Letters
  issn: '15306984'
  volume: '24'
  issue: '36'
  start_page: 11232
  end_page: 11238

## Conference



## Related item



## Funding

- funder_name: European Commission
- funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: EP/K01711X/1
  funder_name: Engineering and Physical Sciences Research Council
- identifier: EP/K017144/1
  funder_name: Engineering and Physical Sciences Research Council
- identifier: EP/L016087/1
  funder_name: Engineering and Physical Sciences Research Council
- identifier: EP/N010345/1
  funder_name: Engineering and Physical Sciences Research Council
- funder_name: European Research Council
- funder_name: HORIZON EUROPE European Innovation Council
- identifier: 23H02052
  funder_name: Japan Society for the Promotion of Science
- identifier: '319277'
  funder_name: 'FP7 Ideas: European Research Council'
- identifier: '842251'
  funder_name: H2020 European Research Council
- identifier: '019.221EN.004'
  funder_name: Nederlandse Organisatie voor Wetenschappelijk Onderzoek

## 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



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: fbc0118b-c7ad-4e68-b540-75ab5bae0540
  filename: alexeev-et-al-2024-nature-of-long-lived-moiré-interlayer-excitons-in-electrically-tunable-mos2-mose2-heterobilayers.pdf
  content_type: application/pdf
  size: 2419642
  md5: e28e989ef11916832d4555fefab65ece

## Thumbnail

fileset_id: fbc0118b-c7ad-4e68-b540-75ab5bae0540
filename: alexeev-et-al-2024-nature-of-long-lived-moiré-interlayer-excitons-in-electrically-tunable-mos2-mose2-heterobilayers.pdf