# Interface engineering of charge-transfer excitons in 2D lateral heterostructures

https://mdr.nims.go.jp/datasets/f6cae166-7d1b-4b91-ada0-b89a5fc6009a

## File

- [3548cf0f-5437-4901-8aed-679459d9b976.pdf](https://mdr.nims.go.jp/filesets/8c115324-16fb-47d2-b3b2-3fe3d7025874/download) ([Detail](https://mdr.nims.go.jp/filesets/8c115324-16fb-47d2-b3b2-3fe3d7025874.md))

## Id

f6cae166-7d1b-4b91-ada0-b89a5fc6009a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T08:30:24.646274Z

## Updated at

2025-02-17T03:30:15.709677Z

## Published at

2025-02-17T03:30:17.301214Z

## Doi



## First published url

https://doi.org/10.1038/s41467-023-37889-9

## Date published

2023-04-28

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Interface engineering of charge-transfer excitons in 2D lateral heterostructures
  title_type: original
  lang: en

## Description

- description: The existence of bound charge transfer (CT) excitons at the interface
    of monolayer lateral het- erojunctions has been debated in literature, but contrary
    to the case of interlayer excitons in ver- tical heterostructure their observation
    still has to be confirmed. Here, we present a joint theory- experiment study investigating
    signatures of bound CT excitons in photoluminescence spectra at the interface
    of hBN-encapsulated lateral MoSe2-WSe2 heterostructures. Based on a fully micro-
    scopic and material-specific theory, we reveal the many-particle processes behind
    the formation of CT excitons and how they can be tuned via interface- and dielectric
    engineering. For junction widths smaller than the Coulomb-induced Bohr radius
    we predict the appearance of a low-energy CT exciton. The theoretical prediction
    is compared with experimental low-temperature photolu- minescence measurements
    showing emission in the bound CT excitons energy range. Our joint theory-experiment
    study presents a significant step towards a microscopic understanding of optical
    properties of technologically promising 2D lateral heterostructures.
  description_type: abstract
  lang: und

## Creator

- name: Roberto Rosati
  role: author
- name: Ioannis Paradisanos
  role: author
- name: Libai Huang
  role: author
- name: Ziyang Gan
  role: author
- name: Antony George
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Laurent Lombez
  role: author
- name: Pierre Renucci
  role: author
- name: Andrey Turchanin
  role: author
- name: Bernhard Urbaszek
  role: author
- name: Ermin Malic
  role: author

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## Keyword

- subject: Charge transfer excitons
  schema: not_defined
- subject: lateral heterojunctions
  schema: not_defined
- subject: photoluminescence spectra
  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: '14'
  issue: '1'
  article_number: '2438'

## Conference



## Related item



## Funding

- identifier: '512604469'
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: SPP2244
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: DFG grant TU149/16-1
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: SFB 1083
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: 19H05790
  funder_name: MEXT | Japan Society for the Promotion of Science
- identifier: 20H00354
  funder_name: MEXT | Japan Society for the Promotion of Science
- identifier: 21H05233
  funder_name: MEXT | Japan Society for the Promotion of Science

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## Fileset

- id: 8c115324-16fb-47d2-b3b2-3fe3d7025874
  filename: 3548cf0f-5437-4901-8aed-679459d9b976.pdf
  content_type: application/pdf
  size: 1378385
  md5: 22e18dc9f9cc8e95b6e65d41f719b123

## Thumbnail

fileset_id: 8c115324-16fb-47d2-b3b2-3fe3d7025874
filename: 3548cf0f-5437-4901-8aed-679459d9b976.pdf