# Liquid-activated quantum emission from pristine hexagonal boron nitride for nanofluidic sensing

https://mdr.nims.go.jp/datasets/fc9c18f8-425d-4234-9d4a-059360fce920

## File

- [s41563-023-01658-2.pdf](https://mdr.nims.go.jp/filesets/15238101-68c0-4337-aa94-ad651cacd0d7/download) ([Detail](https://mdr.nims.go.jp/filesets/15238101-68c0-4337-aa94-ad651cacd0d7.md))

## Id

fc9c18f8-425d-4234-9d4a-059360fce920

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-27T04:10:52.832537Z

## Updated at

2025-02-27T23:30:45.169913Z

## Published at

2025-02-27T23:30:45.244206Z

## Doi



## First published url

https://doi.org/10.1038/s41563-023-01658-2

## Date published

2023-08-31

## Recorded date published

2023-10

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Liquid-activated quantum emission from pristine hexagonal boron nitride for
    nanofluidic sensing
  title_type: original
  lang: en

## Description

- description: Nanostructures made of two-dimensional (2D) materials have become in
    recent years the flagship of nanofluidic discoveries. By confining liquids down
    to a few molecular layers, anomalies in molecular transport and order have been
    revealed. Currently, only indirect and ensemble averaged techniques have been
    able to operate in such extreme confinements, as even the smallest molecular fluorophores
    are too bulky to penetrate state-of-the-art single-digit nanofluidic systems6.
    This strong limitation calls for the development of novel optical approaches allowing
    for the direct molecular imaging of liquids confined at the nanoscale. Here, we
    show that native defects present at the surface of hexagonal boron nitride (hBN)
    - a widely used 2D material - can be used as molecular probes in liquid, without
    compromising the atomic smoothness of their host material. We first demonstrate
    that native surface defects are readily activated through interactions with organic
    solvents and behave as quantum emitters. Correlated activation of neighboring
    defects reveal single-molecule dynamics at the interface, while defect emission
    spectra offer a direct readout of the dielectric properties of the liquid medium.
    We then harvest these effects in atomically smooth slit-shaped van der Waals channels,
    revealing molecular dynamics and order under nanometre-scale confinement. Liquid-activated
    native defects in pristine hBN bridge the gap between solid-state nanophotonics
    and nanofluidics and open up new avenues for nanoscale sensing and optofluidics.
  description_type: abstract
  lang: und

## Creator

- name: Nathan Ronceray
  role: author
- name: Yi You
  role: author
- name: Evgenii Glushkov
  role: author
- name: Martina Lihter
  role: author
- name: Benjamin Rehl
  role: author
- name: Tzu-Heng Chen
  role: author
- name: Gwang-Hyeon Nam
  role: author
- name: Fanny Borza
  role: author
- 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: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Sylvie Roke
  role: author
- name: Ashok Keerthi
  role: author
- name: Jean Comtet
  role: author
- name: Boya Radha
  role: author
- name: Aleksandra Radenovic
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Atomic scale
  schema: not_defined
- subject: new properties
  schema: not_defined
- subject: optical approaches
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Materials
  issn: '14764660'
  volume: '22'
  issue: '10'
  start_page: 1236
  end_page: 1242

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## Specimen



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## Fileset

- id: 15238101-68c0-4337-aa94-ad651cacd0d7
  filename: s41563-023-01658-2.pdf
  content_type: application/pdf
  size: 2399605
  md5: cc8f3a11c01c6cab9030d1951cb7c9eb

## Thumbnail

fileset_id: 15238101-68c0-4337-aa94-ad651cacd0d7
filename: s41563-023-01658-2.pdf