# Spatially Controlled Single Photon Emitters in hBN‐Capped WS<sub>2</sub> Domes

https://mdr.nims.go.jp/datasets/2ec8a4f4-5e4d-4498-9a01-45fb3f169ab1

## File

- [Advanced Optical Materials - 2023 - Cianci - Spatially Controlled Single Photon Emitters in hBN‐Capped WS2 Domes.pdf](https://mdr.nims.go.jp/filesets/2eea0d65-06b8-45a9-8db0-568eb98c9f89/download) ([Detail](https://mdr.nims.go.jp/filesets/2eea0d65-06b8-45a9-8db0-568eb98c9f89.md))

## Id

2ec8a4f4-5e4d-4498-9a01-45fb3f169ab1

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T00:30:49.125453Z

## Updated at

2025-02-14T03:31:49.086879Z

## Published at

2025-02-14T03:31:49.154604Z

## Doi



## First published url

https://doi.org/10.1002/adom.202202953

## Date published

2023-04-08

## Recorded date published

2023-6

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Spatially Controlled Single Photon Emitters in hBN‐Capped WS<sub>2</sub>
    Domes
  title_type: original
  lang: en

## Description

- description: Monolayers (MLs) of semiconducting transition-metal dichalcogenides
    (TMDCs) are promising materials as host of efficient single-photon emitters (SPEs).
    The emitters appear at cryogenic temperatures and are most often associated to
    the presence of mechanical deformations (strain). Thus, spatially controlled strain
    fields would enhance the scalability of such SPEs and their integrability into
    photonic structures. Regular arrays of strained hydrogen-filled micro- and nano-bubbles
    (domes) can be created by hydrogen-ion irradiation of bulk TMDC flakes in combination
    with lithographic techniques. However, SPE observation is hindered by the H2 liquefaction
    for temperatures T< 33 K. In this work, the domes’ deflation below such temperature
    is overcome by depositing few-layer hexagonal boron nitride (hBN) on top of the
    domes. hBN heterostructuring leads indeed to the preservation of the dome geometry
    at all temperatures, as derived by micro-Raman (µ-Raman) and micro-photoluminescence
    (µ-PL) spectroscopy on MoS2 and WS2 domes. Eventually, ordered arrays of capped
    WS2 domes show the appearance, at 5 K, of intense narrow emission lines. By measuring
    their second-order autocorrelation function, these lines are confirmed as originating
    from quantum emitters. The electronic properties of the emitters were addressed
    by time-resolved µ-PL yielding time decays of (1–10 ns) and by magneto-µ-PL providing
    an average exciton gyromagnetic factor of -8.2 largely exceeding the values observed
    in planar strain-free MLs.
  description_type: abstract
  lang: und

## Creator

- name: Salvatore Cianci
  role: author
- name: Elena Blundo
  role: author
- name: Federico Tuzi
  role: author
- name: Giorgio Pettinari
  role: author
- name: Katarzyna Olkowska‐Pucko
  role: author
- name: Eirini Parmenopoulou
  role: author
- name: Djero B. L. Peeters
  role: author
- name: Antonio Miriametro
  role: author
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Adam Babinski
  role: author
- name: Maciej R. Molas
  role: author
- name: Marco Felici
  role: author
- name: Antonio Polimeni
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Single-photon emitters
  schema: not_defined
- subject: hydrogen-filled micro-domes
  schema: not_defined
- subject: hBN heterostructuring
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Optical Materials
  issn: '21951071'
  volume: '11'
  issue: '12'
  article_number: '2202953'

## Conference



## Related item



## Funding

- identifier: 2017/27/B/ST3/00205
  funder_name: Narodowym Centrum Nauki
- identifier: 2018/31/B/ST3/02111
  funder_name: Narodowym Centrum Nauki

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Custom property



## Fileset

- id: 2eea0d65-06b8-45a9-8db0-568eb98c9f89
  filename: Advanced Optical Materials - 2023 - Cianci - Spatially Controlled Single
    Photon Emitters in hBN‐Capped WS2 Domes.pdf
  content_type: application/pdf
  size: 2140745
  md5: 82737cd98ed4baf011ce6a8b86016ac9

## Thumbnail

fileset_id: 2eea0d65-06b8-45a9-8db0-568eb98c9f89
filename: Advanced Optical Materials - 2023 - Cianci - Spatially Controlled Single
  Photon Emitters in hBN‐Capped WS2 Domes.pdf