# Tunable Color Center Photoluminescence in Boron Nitride Nanotubes Through Reductive Arylation

https://mdr.nims.go.jp/datasets/804b5fb3-8aee-4e66-a26a-7bcad6c623eb

## File

- [ChemPhotoChem - 2026 - Nishinakama - Tunable Color Center Photoluminescence in Boron Nitride Nanotubes Through Reductive.pdf](https://mdr.nims.go.jp/filesets/fb227d42-dc7c-4a9d-a304-be9c0aaa35e5/download) ([Detail](https://mdr.nims.go.jp/filesets/fb227d42-dc7c-4a9d-a304-be9c0aaa35e5.md))

## Id

804b5fb3-8aee-4e66-a26a-7bcad6c623eb

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-10-16T06:09:41.841196Z

## Updated at

2026-10-16T06:12:08.869226Z

## Published at

2026-10-19T03:32:28.626731Z

## Doi



## First published url

https://doi.org/10.1002/cptc.70316

## Date published

2026-10-15

## Recorded date published

2026-10

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Tunable Color Center Photoluminescence in Boron Nitride Nanotubes Through
    Reductive Arylation
  title_type: original
  lang: en

## Description

- description: 'Boron nitride nanotubes (BNNTs) are wide bandgap one-dimensional nanomaterials
    that are promising hosts for defect-based luminescent material development. Herein,
    we report the formation and wavelength modulation of luminescent color centers
    (CCs) in BNNTs through reductive arylation. Phenyl-functionalized BNNTs exhibited
    new defect-related CC photoluminescence (PL) at 368 and 453 nm, respectively.
    Spectroscopic analyses revealed that arylation selectively formed B–C bonds, resulting
    in the introduction of sp³ boron defects within the BN framework for luminescent
    CC formation. The emission properties were modulated by the defect density: increasing
    the degree of aryl functionalization enhanced the contribution of longer-wavelength
    emission, suggesting the formation of lower-energy defect states at proximal sp³
    boron defects. In addition, the CC PL wavelengths were further tuned by the electronic
    properties of para-substituents on the aryl groups, with electron donating substituents
    inducing red-shifted PL. Density functional theory calculations supported these
    experimental observations, showing that aryl functionalization narrows the band
    gap of BNNTs and that closely spaced sp³ boron defects generate lower-energy CC
    levels. These results demonstrate that reductive arylation provides a molecular
    defect-engineering strategy for controlling CC emission in BNNTs, offering a promising
    route toward chemically tunable nanoscale light sources based on functionalized
    boron nitride nanomaterials. '
  description_type: abstract
  lang: und

## Creator

- name: Hiroki Nishinakama
  role: author
- name: Hayato Saeki
  role: author
  orcid: https://orcid.org/0000-0001-9072-8414
- name: Naoki Tanaka
  role: author
  orcid: https://orcid.org/0000-0002-2324-2040
- name: Hayato Tateishi
  role: author
  orcid: https://orcid.org/0009-0006-2808-3639
- name: Koichiro Kato
  role: author
  orcid: https://orcid.org/0000-0003-4392-8741
- name: Koji Harano
  role: author
  orcid: https://orcid.org/0000-0001-6800-8023
- name: Koji Kimoto
  role: author
  orcid: https://orcid.org/0000-0002-3927-0492
- name: Tsuyohiko Fujigaya
  role: author
  orcid: https://orcid.org/0000-0003-3563-8234
- name: Tomohiro Shiraki
  role: author
  orcid: https://orcid.org/0000-0002-6604-9662

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: arylation
  schema: not_defined
- subject: boron nitride nanotube
  schema: not_defined
- subject: color center
  schema: not_defined
- subject: defect
  schema: not_defined
- subject: photoluminescence
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: ChemPhotoChem
  issn: '23670932'
  volume: '10'
  issue: '10'
  article_number: e70316

## Conference



## Related item



## Funding

- identifier: JP25K22300
  funder_name: Japan Society for the Promotion of Science
- identifier: JPJSBP120249003
  funder_name: Japan Society for the Promotion of Science
- identifier: CREST JPMJCR25A
  funder_name: Japan Science and Technology Agency
- identifier: JACI Prize for Outstanding Achievements
  funder_name: Japan Association for Chemical Innovation
- identifier: JP23K23178
  funder_name: Japan Society for the Promotion of Science
- identifier: JP24H01198
  funder_name: Japan Society for the Promotion of Science
- identifier: JP24K01279
  funder_name: Japan Society for the Promotion of Science

## 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



## Software



## Custom property



## Fileset

- id: fb227d42-dc7c-4a9d-a304-be9c0aaa35e5
  filename: ChemPhotoChem - 2026 - Nishinakama - Tunable Color Center Photoluminescence
    in Boron Nitride Nanotubes Through Reductive.pdf
  content_type: application/pdf
  size: 1596608
  md5: fd8e60192cee559f4123c3215caf8c2a

## Thumbnail

fileset_id: fb227d42-dc7c-4a9d-a304-be9c0aaa35e5
filename: ChemPhotoChem - 2026 - Nishinakama - Tunable Color Center Photoluminescence
  in Boron Nitride Nanotubes Through Reductive.pdf