# Carbonized Polymer Dots‐Based Spectrally Adaptable Photonic Microbarcodes

https://mdr.nims.go.jp/datasets/e476c55b-a56e-4853-bf5c-6a61989b501c

## Files

- [AOM_CDs_barcode-MDR.pdf](https://mdr.nims.go.jp/filesets/8ca6fd05-b605-4766-9d26-ff8e0ac5d94d/download) ([Detail](https://mdr.nims.go.jp/filesets/8ca6fd05-b605-4766-9d26-ff8e0ac5d94d.md))

## Id

e476c55b-a56e-4853-bf5c-6a61989b501c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-07T04:06:49.208532Z

## Updated at

2026-01-05T04:10:50.836181Z

## Published at

2026-01-06T03:19:37.057370Z

## Doi

https://doi.org/10.48505/nims.6094

## First published url

https://doi.org/10.1002/adom.202500822

## Date published

2025-03-22

## Recorded date published

2025-8

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Carbonized Polymer Dots‐Based Spectrally Adaptable Photonic Microbarcodes
  title_type: original
  lang: en

## Description

- description: Carbonized polymer dots (CPDs) are versatile nanomaterials with remarkable
    optical properties that enable their use in a wide range of photonics applications.
    CPDs exhibit excitation-wavelength-dependent tunable emissions that span the visible
    to near-infrared (NIR) spectrum. In this study, whispering-gallery-mode (WGM)
    emission achieved using CPDs-coated monodisperse polystyrene (CPDs@PS) microbeads
    is used to develop wavelength-adaptable photonic barcodes by leveraging the excitation-dependent
    photoluminescence of CPDs. Each resonant emission peak acts as a unique fingerprint
    of photonics barcodes related to the corresponding microresonator caused by WGM
    emission. These photonic barcodes can be easily disguised and then authenticated
    by varying the excitation wavelength. WGM-based barcodes can exhibit a large number
    of encoding capacities by adjusting the resonator diameter. Monodisperse CPDs@PS
    microbeads (3, 4.5, and 6 µm) are used to demonstrate adaptable photonic barcodes,
    which can improve the readability and reproducibility of spectral patterns for
    the reliable tagging and identification of commodities. Unlike traditional semiconductor
    quantum dots or dye-doped microresonators, this adaptive resonant emission does
    not require structural or chemical modifications, making it an ideal candidate
    for multiplexed assays, cell tagging, and tracking, anti-counterfeiting, and for
    ensuring the integrity and authenticity of products in various high-value sectors.
  description_type: abstract
  lang: und

## Creator

- name: Barun Kumar Barman
  role: author
  orcid: https://orcid.org/0000-0002-9894-1890
- name: Keisuke Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-4285-2135
- name: Tadaaki Nagao
  role: author
  orcid: https://orcid.org/0000-0002-6746-2686

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: spectral barcode
  schema: not_defined
- subject: optical cavity
  schema: not_defined
- subject: microsphere
  schema: not_defined
- subject: phosphor
  schema: not_defined
- subject: authentication
  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: '13'
  issue: '22'
  article_number: '2500822'

## Conference



## Related item



## Funding

- identifier: 24K17589
  funder_name: JSPS
  description: "科研費\r\n"

## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Fileset

- id: 8ca6fd05-b605-4766-9d26-ff8e0ac5d94d
  filename: AOM_CDs_barcode-MDR.pdf
  content_type: application/pdf
  size: 2167576
  md5: 49800ef65d1f3cefadd0113ad8e29d99

## Thumbnail

fileset_id: 8ca6fd05-b605-4766-9d26-ff8e0ac5d94d
filename: AOM_CDs_barcode-MDR.pdf