# Hybrid Frenkel–Wannier excitons facilitate ultrafast energy transfer at a 2D–organic interface

https://mdr.nims.go.jp/datasets/06416289-8027-485e-9189-017ae986b3e0

## File

- [s41567-025-03075-5.pdf](https://mdr.nims.go.jp/filesets/e391aeec-5bd6-49ab-9578-56c1161a5eb7/download) ([Detail](https://mdr.nims.go.jp/filesets/e391aeec-5bd6-49ab-9578-56c1161a5eb7.md))

## Id

06416289-8027-485e-9189-017ae986b3e0

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-28T10:35:14.958067Z

## Updated at

2026-03-02T23:30:21.585535Z

## Published at

2026-03-02T08:20:26.933869Z

## Doi



## First published url

https://doi.org/10.1038/s41567-025-03075-5

## Date published

2025-10-29

## Recorded date published

2025-12

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Hybrid Frenkel–Wannier excitons facilitate ultrafast energy transfer at a
    2D–organic interface
  title_type: original
  lang: en

## Description

- description: 'Two-dimensional transition metal dichalcogenides (TMDs) and organic
    semiconductors (OSCs) have emerged as promising material platforms for next-generation
    optoelectronic devices. The combination of both is predicted to yield emergent
    properties while retaining the advantages of their individual components. In OSCs
    the optoelectronic response is typically dominated by localized Frenkel-type excitons,
    whereas TMDs host delocalized Wannier-type excitons. However, much less is known
    about the spatial and electronic characteristics of excitons at hybrid TMD/OSC
    interfaces, which ultimately determine the possible energy and charge transfer
    mechanisms across the 2D-organic interface. Here, we use ultrafast momentum microscopy
    and many-body perturbation theory to elucidate a hybrid exciton at an TMD/OSC
    interface that forms via the ultrafast resonant Förster energy transfer process.
    We show that this hybrid exciton has both Frenkel- and Wannier-type contributions:
    Concomitant intra- and interlayer electron-hole transitions within the OSC layer
    and across the TMD/OSC interface, respectively, give rise to an exciton wavefunction
    with mixed Frenkel-Wannier character. By combining theory and experiment, our
    work provides previously inaccessible insights into the nature of hybrid excitons
    at TMD/OSC interfaces. It thus paves the way to a fundamental understanding of
    charge and energy transfer processes across 2D-organic heterostructures.'
  description_type: abstract
  lang: und

## Creator

- name: Wiebke Bennecke
  role: author
- name: Ignacio Gonzalez Oliva
  role: author
- name: Jan Philipp Bange
  role: author
- name: Paul Werner
  role: author
- name: David Schmitt
  role: author
- name: Marco Merboldt
  role: author
- name: Anna M. Seiler
  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: Daniel Steil
  role: author
- name: R. Thomas Weitz
  role: author
- name: Peter Puschnig
  role: author
- name: Claudia Draxl
  role: author
- name: G. S. Matthijs Jansen
  role: author
- name: Marcel Reutzel
  role: author
- name: Stefan Mathias
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: 'hybrid excitons
    '
  schema: not_defined
- subject: '2D-organic interface
    '
  schema: not_defined
- subject: 'energy transfer
    '
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-10-29

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Physics
  issn: '17452481'
  volume: '21'
  issue: '12'
  start_page: 1973
  end_page: 1980

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## Fileset

- id: e391aeec-5bd6-49ab-9578-56c1161a5eb7
  filename: s41567-025-03075-5.pdf
  content_type: application/pdf
  size: 4609646
  md5: bd7cd024963bfc49fe4474ee8aa35c3b

## Thumbnail

fileset_id: e391aeec-5bd6-49ab-9578-56c1161a5eb7
filename: s41567-025-03075-5.pdf