# A Van Der Waals Broadband Infrared Optical Synapse Enabling Orientation Detection

https://mdr.nims.go.jp/datasets/a52e98ed-9256-429d-b916-e71b052b70f2

## File

- [Advanced Science - 2025 - Guo - A Van Der Waals Broadband Infrared Optical Synapse Enabling Orientation Detection.pdf](https://mdr.nims.go.jp/filesets/098acd3a-dc8a-4b64-98e8-efcf54a63f30/download) ([Detail](https://mdr.nims.go.jp/filesets/098acd3a-dc8a-4b64-98e8-efcf54a63f30.md))

## Id

a52e98ed-9256-429d-b916-e71b052b70f2

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-14T06:17:36.691904Z

## Updated at

2026-02-16T07:30:28.800291Z

## Published at

2026-02-16T04:57:32.687048Z

## Doi



## First published url

https://doi.org/10.1002/advs.202507530

## Date published

2025-09-30

## Recorded date published

2025-12

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: A Van Der Waals Broadband Infrared Optical Synapse Enabling Orientation Detection
  title_type: original
  lang: en

## Description

- description: Vision system with efficient infrared-sensitive optical synapses is
    crucial for enabling infrared radiation detection and target recognition for some
    predators hunting in the dark. Current two-dimensional (2D) synaptic devices typically
    adopt the strategy of charge trap and release to achieve intelligent sensing and
    visual recognition. However, the response wavelength is limited in a narrow range
    (typically in visible) due to the intrinsic bandgap of these 2D materials. In
    this work, we report a broadband infrared optoelectronic synaptic device based
    on a few-layer graphene/CrOCl/few-layer graphene van der Waals (vdW) heterostructure,
    featuring tunable spike timing-dependent plasticity and a broadband response range
    from the visible to the infrared (520 nm to 2000 nm). The broadband synaptic response
    in the tunneling device is attributed to the modulation of the tunneling barrier
    by strong interfacial coupling and charge transfer-induced long-wavelength charge
    order at the vdW interface. Integrated with reservoir computing technique, the
    tunneling device can efficiently detect images in different orientations, achieving
    a recognition accuracy exceeding 98%, and judge the possible escape directions
    of a mouse. Our work not only allows us to explore broadband optical synapses
    by controlling the vdW interfacial coupling but also offers a promising solution
    for developing advanced infrared detection systems.
  description_type: abstract
  lang: und

## Creator

- name: Dan Guo
  role: author
- name: Wenjing Li
  role: author
- name: Pingfan Gu
  role: author
- name: Weikang Dong
  role: author
- name: Xuyan Rui
  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: Yu Ye
  role: author
- name: Fawei Zheng
  role: author
- name: Jiadong Zhou
  role: author
- name: Shoujun Zheng
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: 'optical synapse
    '
  schema: not_defined
- subject: 'broadband infrared
    '
  schema: not_defined
- subject: 'van der Waals heterostructure
    '
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-09-30

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Science
  issn: '21983844'
  volume: '12'
  issue: '48'
  article_number: e07530

## Conference



## Related item



## Funding

- identifier: 2022YFA1203904
  funder_name: National Key Research and Development Program of China
- identifier: '62375018'
  funder_name: National Natural Science Foundation of China
- funder_name: Beijing Institute of Technology Research Fund Program for Young Scholars

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Specific property for specimen



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## Computational method



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## Fileset

- id: '098acd3a-dc8a-4b64-98e8-efcf54a63f30'
  filename: Advanced Science - 2025 - Guo - A Van Der Waals Broadband Infrared Optical
    Synapse Enabling Orientation Detection.pdf
  content_type: application/pdf
  size: 4851738
  md5: '03593194cabb9c4931908bc20682ba96'

## Thumbnail

fileset_id: '098acd3a-dc8a-4b64-98e8-efcf54a63f30'
filename: Advanced Science - 2025 - Guo - A Van Der Waals Broadband Infrared Optical
  Synapse Enabling Orientation Detection.pdf