# Improved Optical Uniformity of WSe                    <sub>2</sub>                    /WS                    <sub>2</sub>                    Moiré Superlattices Grown on hBN toward Quantum Photonics

https://mdr.nims.go.jp/datasets/089b3a4d-e52a-44b1-9c6c-e2cefcc8c9e2

## File

- [2026-tamogami-ACSamn.pdf](https://mdr.nims.go.jp/filesets/fa08092d-4896-44f3-b349-74a21dff3cdd/download) ([Detail](https://mdr.nims.go.jp/filesets/fa08092d-4896-44f3-b349-74a21dff3cdd.md))

## Id

089b3a4d-e52a-44b1-9c6c-e2cefcc8c9e2

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-06-09T02:16:57.723915Z

## Updated at

2026-06-09T04:09:25.446482Z

## Published at

2026-06-09T06:25:34.098500Z

## Doi



## First published url

https://doi.org/10.1021/acsanm.6c00104

## Date published

2026-05-15

## Recorded date published

2026-5-15

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Improved Optical Uniformity of WSe                    <sub>2</sub>                    /WS                    <sub>2</sub>                    Moiré
    Superlattices Grown on hBN toward Quantum Photonics
  title_type: original
  lang: en

## Description

- description: Chemical vapor deposition growth offers advantages for producing large-area
    moiré superlattices with controlled lattice alignment. However, the use of conventional
    SiO2/Si substrates often induces inhomogeneous lattice strain that obscures their
    optical properties. In this work, we report the improved uniformity of WSe2/WS2
    moiré superlattices directly grown on hexagonal boron nitride (hBN). The hBN-supported
    samples exhibit well-ordered moiré structures as confirmed by transmission electron
    microscopy. At low temperatures, they show interlayer exciton peaks that are highly
    sensitive to excitation power, with a blueshift rate of ∼120 meV/μW, nearly 2
    orders of magnitude larger than previously reported. This pronounced shift indicates
    the enhanced repulsive dipolar interaction of interlayer excitons confined in
    the moiré potential of WSe2/WS2 heterobilayers, enabled by the reduction of inhomogeneous
    strain and interlayer disorder on hBN. These results highlight the potential of
    directly grown moiré superlattices on hBN for quantum dot arrays, offering a route
    toward quantum photonics.
  description_type: abstract
  lang: und

## Creator

- name: Yui Tamogami
  role: author
  orcid: https://orcid.org/0009-0000-8573-940X
- name: Wenjin Zhang
  role: author
- name: Ryotaro Sakakibara
  role: author
  orcid: https://orcid.org/0000-0001-7150-2831
- name: Yuto Urano
  role: author
  orcid: https://orcid.org/0009-0004-3646-2781
- name: Sudhanshu Kumar Nayak
  role: author
- name: Yusuke Nakanishi
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
- name: Ryo Kitaura
  role: author
  orcid: https://orcid.org/0000-0001-8108-109X
- name: Yasumitsu Miyata
  role: author
  orcid: https://orcid.org/0000-0002-9733-5119

## Contact agent



## Publisher

organization: American Chemical Society (ACS)
ror: https://ror.org/

## Managing organization



## Keyword

- subject: WSe2/WS2
  schema: not_defined
- subject: Moiré Superlattices
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: ACS Applied Nano Materials
  issn: '25740970'
  volume: '9'
  issue: '19'
  start_page: 8572
  end_page: 8578

## Conference



## Related item



## Funding

- identifier: JP21H05232, JP21H05234, JP22H04957, JP22H00280, JP24H00044, and JP23H02052
  funder_name: JSPS
- identifier: JPMJFR213X, JPMJCR23A4, JPMJCR24A5
  funder_name: JST

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## Fileset

- id: fa08092d-4896-44f3-b349-74a21dff3cdd
  filename: 2026-tamogami-ACSamn.pdf
  content_type: application/pdf
  size: 6763120
  md5: a89a6b3a75fa372835d4e43d8cb41686

## Thumbnail

fileset_id: fa08092d-4896-44f3-b349-74a21dff3cdd
filename: 2026-tamogami-ACSamn.pdf