# Revealing hidden interlayer excitons in 2D bilayers via hybrid molecular gating

https://mdr.nims.go.jp/datasets/d449a404-4d73-4c35-85f7-a862600f46d4

## File

- [s41467-025-65431-6.pdf](https://mdr.nims.go.jp/filesets/0451fbd3-ce90-4f43-9764-6fb829ecc689/download) ([Detail](https://mdr.nims.go.jp/filesets/0451fbd3-ce90-4f43-9764-6fb829ecc689.md))

## Id

d449a404-4d73-4c35-85f7-a862600f46d4

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-05-23T06:46:56.193869Z

## Updated at

2026-05-24T23:56:29.729566Z

## Published at

2026-05-25T01:29:22.002994Z

## Doi



## First published url

https://doi.org/10.1038/s41467-025-65431-6

## Date published

2025-11-10

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Revealing hidden interlayer excitons in 2D bilayers via hybrid molecular
    gating
  title_type: original
  lang: en

## Description

- description: Excitons in bilayer transition metal dichalcogenides (2L-TMDs) are
    Coulomb-bound electron/hole pairs that can be viewed as broadly tunable analogs
    of atomic or molecular systems. In particular, under an out-of-plane electric
    field, various inter- and intralayer excitons in 2L-TMDs are brought into energetic
    resonance, forming complex hybridized states with novel properties. However, previous
    studies were limited to only a few select states due to insufficient electric
    field strength. Here, to overcome this limit, we sandwich a 2L-TMD between layers
    of solid-state donor and organic acceptor molecules. Charge transfer across the
    donor/acceptor components allows applying an electric field reaching > 0.27 V
    nm-1, about twice higher than previously available. Additionally, the density
    of the top molecular layer can be tuned during the experiment, at cryogenic temperatures,
    with a new technique of in situ evaporation of acceptor molecules. Under a high
    electric field, we discover a range of new behaviors for excitons in 2L-TMDs.
    First, as the result of hybridization, intralayer excitons acquire an interlayer
    character. Second, the same hybridization allows us to detect new excitonic species,
    including the interlayer “B” exciton. Third, we observe an ultrastrong Stark splitting
    of > 380 meV with exciton energies tunable over a large range of the optical spectrum,
    with potential implications for optoelectronics. Our work creates new possibilities
    for using strong electric fields to unlock new physical regimes and control exciton
    hybridization in 2D heterostructures and other systems.
  description_type: abstract
  lang: und

## Creator

- name: Sviatoslav Kovalchuk
  role: author
- name: Kyrylo Greben
  role: author
- name: Abhijeet M. Kumar
  role: author
- name: Simon Pessel
  role: author
- name: Jan Soyka
  role: author
- name: Qing Cao
  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: Dominik Christiansen
  role: author
- name: Malte Selig
  role: author
- name: Andreas Knorr
  role: author
- name: Siegfried Eigler
  role: author
- name: Kirill I. Bolotin
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: 'interlayer excitons
    '
  schema: not_defined
- subject: 2D bilayers
  schema: not_defined
- subject: molecular gating
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-11-10

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '16'
  issue: '1'
  article_number: '9893'

## Conference



## Related item



## Funding

- identifier: TRR227
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: SfB1772
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: SfB951
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: 'GZ: BO 5142/4-1'
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: 05K2022 – ioARPES
  funder_name: Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie

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## Fileset

- id: 0451fbd3-ce90-4f43-9764-6fb829ecc689
  filename: s41467-025-65431-6.pdf
  content_type: application/pdf
  size: 1724159
  md5: cdb8bd65c0b9f9a1fe68bbadab323a80

## Thumbnail

fileset_id: 0451fbd3-ce90-4f43-9764-6fb829ecc689
filename: s41467-025-65431-6.pdf