# Interlayer charge transfer in graphene–2D polyimide heterostructures

https://mdr.nims.go.jp/datasets/14e82db4-f161-4a7e-8958-4c9152e8574b

## File

- [Falorsi_2025_2D_Mater._12_025011.pdf](https://mdr.nims.go.jp/filesets/9a1b90b4-081e-44ae-ab0c-59ad480da9d5/download) ([Detail](https://mdr.nims.go.jp/filesets/9a1b90b4-081e-44ae-ab0c-59ad480da9d5.md))

## Id

14e82db4-f161-4a7e-8958-4c9152e8574b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-03-08T04:34:59.201153Z

## Updated at

2026-03-09T00:23:04.486280Z

## Published at

2026-03-09T03:27:45.916566Z

## Doi



## First published url

https://doi.org/10.1088/2053-1583/adac6e

## Date published

2025-04-01

## Recorded date published

2025-4-1

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Interlayer charge transfer in graphene–2D polyimide heterostructures
  title_type: original
  lang: en

## Description

- description: The vertical integration of multiple two-dimensional (2D) materials
    in heterostructures, held together by van der Waals forces, has opened unprecedented
    possibilities for modifying the (opto-)electronic properties of nanodevices. This
    not only allows for the exploration of new physical phenomena but also greatly
    broadens the application horizon of existing monolayer devices. Graphene, with
    its remarkable opto-electronic properties, is an ideal candidate for such applications.
    The other potential candidates are 2D polymers, crystalline polymeric materials
    with customizable structures and electronic properties, as they can be synthesized
    in all mathematically possible Bravais lattices. In this study, we investigated
    the optoelectronic properties of a heterostructure created by pristine graphene
    and a rectangular 2D polyimide (2DPI) film. This imprints a new superlattice on
    graphene in conjunction with a direct influence on its electronic properties.
    Theoretical and experimental analyses reveal that interlayer charge exchange between
    the 2D polymer and graphene induces hole doping in the graphene layer. We have
    also observed that the properties of the heterostructure are dependent on the
    substrate used in experiments, likely due to the porous character of the 2DPI
    allowing direct interaction of graphene with the support. Furthermore, we demonstrate
    a direct correlation between the thickness of the 2DPI layer and the extent of
    hole doping in graphene. These findings highlight the unique ability to tailor
    functionalities in 2D polymers-based heterostructures, opening avenues for the
    development of optoelectronic devices with precisely engineered properties and
    stimulating further exploration of the diverse phenomena accessible through tailored
    designs of the 2D polymers.
  description_type: abstract
  lang: und

## Creator

- name: Francesca Falorsi
  role: author
- name: Shuangjie Zhao
  role: author
- name: Kejun Liu
  role: author
- name: Christian Eckel
  role: author
- name: Jonas F Pöhls
  role: author
- name: Wiebke Bennecke
  role: author
- name: Marcel Reutzel
  role: author
- name: Stefan Mathias
  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: Zhiyong Wang
  role: author
- name: Miroslav Polozij
  role: author
- name: Xinliang Feng
  role: author
- name: Thomas Heine
  role: author
- name: R Thomas Weitz
  role: author

## Contact agent



## Publisher

organization: IOP Publishing

## Managing organization



## Keyword

- subject: 'graphene
    '
  schema: not_defined
- subject: 2D polyimide
  schema: not_defined
- subject: interlayer charge transfer
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-02-04

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 2D Materials
  issn: '20531583'
  volume: '12'
  issue: '2'
  article_number: '025011'

## Conference



## Related item



## Funding

- identifier: SPP 2244
  funder_name: DFG
- funder_name: Federal Ministry of Education and Research
- funder_name: NHR Center
- funder_name: TU Dresden
- funder_name: NHR Centers
- funder_name: World Premier International Research Center Initiative (WPI), MEXT,
    Japan
- identifier: 20H00354
  funder_name: KAKENHI
- funder_name: JSPS

## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Computational method



## Energy level/transition state



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## Fileset

- id: 9a1b90b4-081e-44ae-ab0c-59ad480da9d5
  filename: Falorsi_2025_2D_Mater._12_025011.pdf
  content_type: application/pdf
  size: 1284025
  md5: 7dc7ebe396b63371e0a80da8997efdce

## Thumbnail

fileset_id: 9a1b90b4-081e-44ae-ab0c-59ad480da9d5
filename: Falorsi_2025_2D_Mater._12_025011.pdf